💰 When is the cheapest time to fly from Denver to Cancún?
This month: June drops to a floor as hurricane season opens and Front Range summer keeps beach demand soft.
Denver to Cancún economy averages about $430 round trip, ranging roughly $367 to $720 across the year.
The cycle is driven by Colorado weather and US holidays. July and August are the floors — with the Front Range warm and dry, fewer travelers chase the beach, so airlines discount Cancún's low season by roughly 20% below average.
The peaks are spring break in March and the Christmas-to-New-Year week, when fares climb 60% above the floor as ski-country families and college crowds head south. September and October stay cheap but carry hurricane-season risk.
Five nonstop carriers keep Denver fares competitive, so set a fare alert and pounce on a sub-$400 round trip in the summer trough or a post-ski shoulder week.
📊 Price trends: Denver to Cancún
Round-trip economy estimates across the next 12 months. Use the chart to spot the cheapest window before locking in dates.
Cheapest month
Jul · $105
Peak month
May · $157
Source: Aviasales · Prices are round-trip economy estimates · Updated May 2026
✈️ Which airlines fly from Denver to Cancún?
Five carriers fly Denver to Cancún nonstop, a rare mix of one full-service line, two ultra-low-cost carriers, and two Mexican airlines on a single short hop.
United and Southwest anchor the schedule with the most forgiving bag and change policies; Frontier and Volaris compete on bare fares; Aeroméxico is the only base fare bundling a checked bag and meal. At Cancún, United uses Terminal 3 and the rest use Terminal 4.
The schedule-depth and points pick.
United flies the most daily DEN-CUN departures on 737-800 and 757-200 metal from Denver, its fourth-largest hub, with the route's only first cabin and United Club access on saver fares.
It earns MileagePlus and takes Chase Sapphire points 1:1, and it waives change fees on standard economy — worth real money in hurricane season.
The trade-off: United usually prices above Southwest in base economy and charges for the first checked bag.
Best for: schedule flexibility, MileagePlus members, travelers wanting a first cabin, anyone who values free changes in storm season
The family value pick.
Southwest runs 737-700 and MAX 8 service from Denver, one of its largest bases, with two free checked bags and no change fees — a combination none of the other four carriers match.
For a family of four hauling beach gear, that bag allowance alone saves $120 to $240 versus Frontier once bags load.
The catch is open seating and a leisure-heavy schedule that fills fast on spring-break weekends; book those dates early.
Best for: families, two-bag travelers, anyone who wants free changes without buying up, points flyers on Rapid Rewards
The carry-on-only floor fare.
Frontier is Denver-headquartered, so DEN-CUN is a core route with the lowest headline fares on A320neo and A321neo jets at a tight 28-inch pitch.
The fare is genuinely cheap only if you travel with a single personal item — add a carry-on, a checked bag, and a seat assignment and it climbs past United and Southwest.
Skip Frontier for a family checking bags or for peak hurricane weeks, where rebooking a bare fare is painful.
Best for: solo carry-on-only flyers, midweek bargain hunters, travelers who pack to one bag and skip seat selection
The only all-in base fare.
Aeroméxico flies 737-800 and MAX 9 equipment and is the route's lone carrier including a checked bag and a hot meal in the base economy fare — a real edge for divers and travelers hauling gear.
It earns SkyTeam miles, useful for Delta SkyMiles members, and offers a smoother Spanish-language service into Mexico.
The fare often sits above the ultra-low-cost pair, but once you add a bag to Frontier or Volaris, Aeroméxico is frequently the better all-in value.
Best for: divers and bag-haulers, Delta SkyMiles earners, travelers who want a meal and bag without add-ons
The Mexican ultra-low-cost wildcard.
Volaris flies A320neo and A321neo jets and frequently posts the lowest southbound base fares on the route, particularly on the Cancún-return leg where its pricing dips below Frontier.
Like Frontier, the fare only stays cheap with a single personal item; bags, seats, and changes are all extra.
Its US-facing service and English support are thinner than Aeroméxico's, so it suits confident solo travelers more than first-timers.
Best for: confident solo travelers, carry-on-only bargain hunters, anyone watching the southbound return-leg fare
Mubboo verdict: United and Southwest are the Denver picks for forgiving bags and changes. Frontier wins carry-on-only. Take Aeroméxico for a free checked bag and meal.
Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.
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We compare prices from airlines and travel platforms so you can find the best deal.
Compare all flights →📅 When should you book Denver to Cancún flights?
Book 8 to 10 weeks ahead for normal travel and 12 to 16 weeks for spring break and Christmas dates.
We tracked fares across major booking platforms: the non-peak sweet spot lands two to three months out, and Tuesday or Wednesday departures usually beat weekends by $40 to $80.
Spring-break weeks in March sell out early because ski-country families and Front Range colleges compete for the same seats. The Christmas-to-New-Year window peaks hardest — book by early November.
With five nonstop carriers competing from Denver, fares stay flexible — a round trip in the low $300s during the July or August trough is realistic. Set a fare alert and pounce.
Hot, humid 88°F days and afternoon showers. Cheap and quiet, but pack a free-change fare for storm season.
If you're a family flying in summer, book by March — peak season fills up fast.
Budget travelers: shoulder season (Sep–Oct, Apr–May) offers the best balance of price and weather.
💡 This Jun: Buy a flexible fare; June starts the storm-risk window even though direct hits are rare.
🏙️ Why visit Cancún?
Cancún is the Caribbean payoff for a Mountain-West winter, and it rewards a Denver traveler more than almost any short-haul beach.
Trade the Front Range snowpack for a 22-km sandbar of white sand and electric-turquoise water in under five hours nonstop. The Zona Hotelera (Hotel Zone) is the resort strip most Denver families anchor to — all-inclusives, calm swimmable bays on the lagoon side, and Caribbean surf on the other.
But the region runs far deeper than the strip. Downtown Cancún (El Centro) holds the real taquerías and the ADO bus hub south. Puerto Morelos, a quiet fishing town 30 minutes south, fronts the world's second-longest barrier reef.
Go further and the Riviera Maya unfolds: Playa del Carmen's walkable Quinta Avenida, the cliffside Mayan ruins of Tulum, the freshwater cenotes inland, and Cozumel's wall diving a ferry-ride away. The altitude-to-sea-level contrast is the whole point.
What makes Cancún worth the flight:
Plan 5 to 7 nights for a first trip; the Yucatán scales with your energy.
In 8 hours on a beach day, alternate the calm lagoon-side bay with the Caribbean surf, then sunset drinks on the Hotel Zone strip.
In 48 hours, add a day trip — the Tulum ruins on the cliff above the sea at opening time before the heat and crowds, or a cenote swim inland at Dos Ojos or Gran Cenote.
In a week, ferry to Cozumel for wall diving, ride the ADO bus down to Playa del Carmen for Quinta Avenida, and save a full day for Chichén Itzá, the great Mayan city two hours inland — go early to beat the midday sun.
The reef, the ruins, and the beach are three different trips stacked on one short flight.
Best neighborhoods to explore:
The 22-km resort sandbar between the Nichupté Lagoon and the Caribbean. All-inclusives, beach clubs, calm lagoon-side water, and the main nightlife strip. Where most Denver families base their first trip.
The real working city away from the strip — authentic taquerías, Mercado 28, lower hotel prices, and the ADO bus terminal for trips south. A budget base with local flavor a short bus ride from the beach.
An hour south, a walkable beach town built around Quinta Avenida's pedestrian strip of restaurants and shops. The Cozumel ferry leaves from here. Popular with digital nomads and couples wanting more than a resort.
Two hours south, where boho beach clubs meet cliffside Mayan ruins and inland cenotes. Quieter, lower-key, and pricier than Cancún. The shoulder-season escape for ski-town couples who want calm over crowds.
A sleepy reef town 30 minutes south and a dive island a ferry-ride away. Puerto Morelos fronts the Mesoamerican Reef; Cozumel's drift and wall dives are world-class. The base for the altitude-to-sea-level diver.
Don't miss:
Tulum Archaeological Zone
Mayan ruins perched on a cliff above the turquoise Caribbean, the only major Mayan site on the coast. Arrive at opening to beat the heat and tour buses, then swim at the beach below.
Browse Tulum Archaeological Zone tours →Chichén Itzá
One of the New Seven Wonders of the World, the great Mayan city two hours inland from Cancún. The El Castillo pyramid anchors a vast complex. Go early; midday Yucatán sun is brutal.
Browse Chichén Itzá tours →Cenotes (Dos Ojos & Gran Cenote)
Freshwater sinkholes in the jungle inland from Tulum, crystal-clear and cool. Swim, snorkel, or cave-dive in a uniquely Yucatán landscape carved into limestone.
Browse Cenotes (Dos Ojos & Gran Cenote) tours →Cozumel reef diving
A short ferry from Playa del Carmen to the island's drift and wall dives on the Mesoamerican Reef, the second-longest barrier reef on Earth. World-class for certified divers.
Browse Cozumel reef diving tours →Isla Mujeres
A small island a 20-minute ferry from Cancún with the calm Playa Norte beach, golf-cart exploring, and snorkeling. An easy half-day or overnight escape from the Hotel Zone.
Browse Isla Mujeres tours →Xcaret & Xel-Há eco-parks
Riviera Maya nature-and-culture parks with underground rivers, wildlife, and an evening Mexican spectacle. A full-day, family-friendly outing south of Playa del Carmen.
Browse Xcaret & Xel-Há eco-parks tours →Playa Delfines (Cancún)
The wide public beach at the south end of the Hotel Zone with the iconic CANCÚN letters and no resort wall — the spot for a free beach day and the postcard photo.
Browse Playa Delfines (Cancún) tours →M's take:
Base in the Hotel Zone for a first trip and the family beach days, then give the Riviera Maya at least one full day.
First-timers should anchor an all-inclusive in the Zona Hotelera for easy beach access, then bus or drive south to Tulum's ruins and an inland cenote for the trip's standout day.
Skip a Chichén Itzá day trip if you only have a long weekend — it eats two hours each way. Save it for a week-long stay, and never schedule it midday in summer.
🎟️ Top activities in Cancún
Ranked by traveler ratings and recent booking volume.
Private VW Beetle Tour to Chichen Itza, Cenote & Valladolid
$725Experience Cancun's Hidden Gems, Mayan museum, cenote & Market 23
$211Source: Viator · Prices in USD · Affiliate links.
🧳 What do you need to know before flying to Cancún?
🛂 Do Americans need a visa for Cancún?
No visa for US passport holders · 180 days tourism · FMM entry permit.
US passport holders enter Mexico visa-free for tourism for up to 180 days, per the US State Department and Mexico's immigration authority. You cannot work on a tourist entry.
You complete an FMM (Forma Migratoria Múltiple) entry permit. Most airlines and resorts fold the process into your ticket, and air travelers often have it handled before arrival.
Your passport must be valid at entry, and air travelers need a blank page for the stamp. Keep your entry permit and your onward or return ticket proof handy.
You clear US customs on the Denver return, not on arrival in Cancún — pad time at DEN if you have a connecting Colorado flight. Always confirm current rules at travel.state.gov before travel.
🕐 What's the time difference?
Cancún runs on Eastern time — 1 hour ahead of Denver Mountain time.
Cancún observes Eastern Standard Time (UTC-5) year-round with no daylight saving, while Denver shifts between MDT (UTC-6) and MST (UTC-7). The gap is 1 hour for most of the year and 2 hours in early November before the US clock change.
The short eastward shift means almost no jet lag in either direction — a rare luxury for an international beach trip.
A 7am Denver departure lands you in Cancún around 2pm local, leaving a full afternoon for the beach. Book the morning bank to maximize day one; the late departures eat your arrival evening.
🚇 How do you get from the airport to the city?
Cancún airport (CUN) sits about 20 km south of the Hotel Zone — roughly 25 to 35 minutes by road. Fares are approximate as of 2026:
| Option | Time | Cost | Best for |
|---|---|---|---|
| Private transfer ✅ | 25–35 min | from ~$44 per vehicle | Families, late arrivals — editor's pick |
| ADO bus | about 40 min | ~$7–$14 | Solo budget travelers to downtown/Playa stations |
| Shared shuttle | 40–70 min | low per-person | Couples on a budget, resort drop-off |
| Authorized taxi | 25–35 min | ~$30–$100 | Small groups wanting door-to-door now |
Editor's pick: Pre-book a private transfer — it tracks your flight and skips the timeshare booths and unmarked taxis in arrivals.
💷 What about money and tipping?
Mexico uses the peso (MXN); the Hotel Zone takes dollars and cards widely.
Carry a no-foreign-transaction-fee card — the Chase Sapphire Preferred, Capital One Venture, or Amex Platinum all waive the 3% fee standard cards charge.
Resorts and Hotel Zone shops accept US dollars, but you get a poor rate paying in dollars — pay in pesos and let your card convert. Withdraw pesos from bank ATMs in malls or resorts, not the freestanding airport machines that gouge on fees.
Tipping is customary and expected at a higher rate than in many countries: 10 to 15% at restaurants and a few dollars for shuttle drivers and housekeeping. Keep small peso bills for beach vendors and tips.
Exchange rates move weekly, so check current rates rather than budgeting on a fixed number.
Cancún currency snapshot
1 USD = 17.35 MXN
1 MXN = $0.058 USD
Mexican Peso
Cash
ATMs offer the best rate. Avoid airport currency desks.
Tipping
ATMs in tourist zones. Use blue official banks (BBVA, Santander) over independent kiosks. Tip 10-15%.
Cards
Visa and Mastercard widely accepted. Tell your bank before you go.
Source: open.er-api.com · Updated Jun 1, 2026 · Rates fluctuate — check before booking.
📱 Will your phone work?
A Mexico eSIM beats roaming for a week on the beach.
Verizon and AT&T day-pass roaming runs about $10 to $12 per day, which adds up fast over a week. T-Mobile's plans include some Mexico data, but speeds throttle on heavy use.
A travel eSIM is the better value: providers like Saily and Airalo sell Mexico data from about $5 for a week, activated before you land at Cancún.
Resort and airport Wi-Fi is common but patchy and often slow on the all-inclusive grounds, so keep an eSIM as your primary connection for maps, rideshare, and dive-shop coordination.
☁️ Cancún climate overview
Best: Jan, Feb, DecHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
80°/71°F
3.7″ rain
Feb
82°/73°F
1.8″ rain
Mar
84°/74°F
1.0″ rain
Apr
85°/74°F
1.2″ rain
May
88°/78°F
1.9″ rain
Jun
87°/78°F
7.1″ rain
Jul
89°/78°F
5.1″ rain
Aug
90°/78°F
3.7″ rain
Sep
89°/76°F
6.5″ rain
Oct
86°/74°F
8.0″ rain
Nov
83°/72°F
4.6″ rain
Dec
82°/72°F
2.4″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated May 2026
✈️ Ready to book? Compare Denver to Cancún flights
Search flights →🛫 Flying from Denver — airport tips
DEN Concourse B — United gates (United)
- Denver is United's fourth-largest hub, so DEN-CUN runs multiple daily departures with the most reschedule options if weather hits
- The United Club on Concourse B is open to first-cabin and eligible MileagePlus passengers before the morning Cancún bank
- United is the only DEN-CUN carrier with a first cabin and 1:1 Chase Sapphire point transfers — book saver awards early
DEN Concourse C — Southwest gates (Southwest)
- Southwest's open-seating boarding rewards an early check-in exactly 24 hours before departure for a low boarding number
- Two free checked bags mean you can skip the gate-check scramble entirely — load beach gear without fee math
- The C concourse is the farthest train ride from the main terminal; allow an extra 10 minutes to reach the gate
DEN Concourse A — Frontier, Volaris, Aeroméxico gates (Frontier / Volaris / Aeroméxico)
- Concourse A handles all DEN international processing, including the SkyTeam and ultra-low-cost Cancún departures
- Frontier is Denver-headquartered, so its DEN-CUN gates here run the fullest bare-fare schedule of the three
- Weigh and tag Frontier and Volaris carry-ons before the gate — gate-checked bags cost more than pre-paid ones
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: Denver to Cancún
Southwest's two free bags beat Frontier's headline fare for any family
The bag math is the whole DEN-CUN decision for families.
Southwest includes two free checked bags per passenger. Frontier and Volaris charge for every bag beyond a personal item — a checked bag often runs $50 to $70 each way, and gate-checked bags cost more than pre-paid.
For a family of four checking one bag each round trip, Frontier's add-ons can total $450 to $560, erasing a headline fare that looked $150 cheaper. Run the comparison with bags loaded before you book, never on the bare fare alone.
Aeroméxico splits the difference with one free checked bag in its base fare.
July and August are the low-$300s windows from DenverMubboo original data
Cancún's low season is Denver's bargain season.
We tracked fares across major booking platforms: July and August consistently produce the year's floors on DEN-CUN, often under $400 round trip in economy — roughly 20% below the annual average.
The reason is local: with the Front Range warm and dry all summer, fewer Coloradans chase a hot Caribbean beach, so airlines discount to fill seats. Avoid March spring break and the Christmas week, when ski-country families and college crowds push fares 60% above the floor.
Late April and May, after the ski season closes, are an underrated shoulder window.
Fly the post-ski shoulder window in late April and MayMubboo original data
Denver's calendar opens a Cancún sweet spot nobody books.
When the Colorado ski season winds down in mid-to-late April, the Front Range crowd that filled spring-break flights disappears, but Cancún's water is still warm and the hurricane season has not started.
Fares in late April and May run well below the March spring-break spike — often $410 or less round trip — with thinner beach crowds at the ruins and cenotes. It is the ideal window for a ski-town couple swapping the slopes for the sea.
The catch is the Memorial Day weekend bump at the end of May; book around it, not into it.
Book the morning Denver bank to dodge afternoon thunderstorms
Denver's weather makes departure time a real variable.
The high plains spawn summer afternoon thunderstorms that routinely delay the late-day banks, and winter snow operations can back up the whole airport. The morning Cancún departures — most carriers run a 6am to 9am wave — leave before the worst storm cells build.
A morning departure also lands you in Cancún by early afternoon local time, with the 1-hour time gain working in your favor, so you get a full beach afternoon on day one. The late departures eat your arrival evening and ride the highest delay risk of the day.
Allow 18 to 24 hours after your last dive before the mile-high return
The altitude-to-sea-level contrast cuts both ways for divers.
Denver sits at 5,280 feet, and flying to that elevation after diving raises decompression risk more than a sea-level return does.
Standard guidance is 18 hours after a single dive and 24 hours after repetitive or multi-day diving before any flight — and a mile-high destination makes that buffer matter more.
If you are diving Cozumel or the cenotes, plan your last dive for two days before departure, not the morning of. Book a morning Denver-bound flight so a full surface interval fits the night before, and never compress the buffer to make a cheaper afternoon fare.
👥 Who flies this route — and what they should know
Denver budget low-cost-carrier flyer
Featured this monthRecommended: Frontier or Volaris, carry-on-only.
Frontier is Denver-headquartered, so DEN-CUN is a core bare-fare route; Volaris often undercuts it on the southbound return leg. The fare is genuinely cheap only with a single personal item — add a carry-on or checked bag and it passes United and Southwest.
Target July, August, or a midweek Tuesday/Wednesday departure for the floor, land Terminal 4, and ride the ADO bus downtown for about $7 to $14.
Don't book a bare fare for a peak hurricane week; rebooking an ultra-low-cost ticket after a storm is painful and rarely free.
Colorado family spring-break beachgoer
Recommended: Southwest economy with two free bags.
For a Front Range family hauling beach gear and car seats, Southwest's two free checked bags and no change fees beat Frontier's lower headline fare once you add four bags.
Book the March spring-break dates 12 to 16 weeks ahead — they sell out as ski-country families and Denver colleges compete.
Land Terminal 4, pre-book a private transfer to the Hotel Zone all-inclusive, and take the morning departure for a beach afternoon on day one.
Don't gamble on a Frontier bare fare for a checking family; the bag fees erase the savings and rebooking a sold-out spring-break week is brutal.
Altitude-to-sea-level diver
Recommended: Aeroméxico economy with the free bag.
Aeroméxico is the only base fare bundling a checked bag and a meal, which suits heavy dive gear, and it earns SkyTeam miles for Delta members. Base in Playa del Carmen for the Cozumel ferry or near the inland cenotes.
Plan your last dive for two days before departure — Denver's 5,280-foot elevation makes the standard 18-to-24-hour flight buffer matter more than a sea-level return.
Book a morning Denver-bound flight so a full surface interval fits the night before. Don't squeeze a final-morning dive in to save on an afternoon fare; the decompression risk into the mile-high city isn't worth it.
Ski-town couple shoulder-season escape
Recommended: United economy in the post-ski shoulder window.
When the Colorado ski season closes in mid-to-late April, fares drop well below the March spike and Cancún's water is still warm before hurricane season. United offers the most schedule depth and free changes, plus the route's only first cabin if you want to splurge.
Base in quieter Tulum or a Riviera Maya boutique for calm over crowds, land Terminal 3, and rent a car or pre-book a transfer south.
Don't book into Memorial Day weekend at the end of May — fares bump for the holiday. Aim for early-to-mid May instead, when the shoulder window is widest.
Denver points and status traveler
Recommended: United on points, first or economy.
United is the only DEN-CUN carrier earning MileagePlus and offering United Club access and a first cabin, and Denver is its fourth-largest hub. Chase Sapphire points transfer 1:1 to United, making saver awards a strong redemption on this short hop.
Watch for saver-award space, which sometimes opens more on connecting itineraries than nonstop — set an alert when the schedule loads. Land Terminal 3 and use Priority Pass lounge options in the Hotel Zone.
Don't burn premium points on the short economy hop when the cash fare is low; save the miles for a longer route and pay cash here.
Carry-on-only digital nomad
Recommended: Volaris or Frontier, one bag, shoulder month.
A nomad basing in Playa del Carmen's coworking corridor travels light, so the ultra-low-cost pair makes sense — Volaris for the cheapest southbound return, Frontier from its Denver base. Keep to a single personal item to hold the fare.
Target a midweek shoulder-month departure for the lowest one-way, land Terminal 4, and ride the ADO bus down the coast for a few dollars.
Buy a Mexico eSIM before you fly so you land with data for rideshare and coworking check-in. Don't rely on patchy resort Wi-Fi as your only connection if work depends on it.
⚖️ Flight delayed or canceled?
On the Denver outbound, US Department of Transportation rules apply.
Under the October 2024 final rule, a canceled flight must be refunded in cash, not vouchers, when you choose not to travel. There is no EU-style EC 261 cash compensation on this US-Mexico route.
For the Cancún return leg, the carriers follow their own conditions of carriage, with the Montreal Convention governing international baggage and delay liability. Mexico's consumer-protection rules add some passenger protections, but enforcement is uneven.
Denver weather — summer thunderstorms and winter snow — is the most common disruption cause on the outbound, and hurricane season (June through November) is the risk on the Cancún end.
United and Southwest waive change fees, which matters here; build a buffer day and consider travel insurance for September-October trips when a storm can strand you.
📱 Stay Connected — Travel eSIM for Mexico
Free option: Free alternative: resort and airport Wi-Fi covers basics, but it's patchy on all-inclusive grounds
Verizon and AT&T day-pass roaming runs $10 to $12 a day, which stacks up over a week on the beach. A Mexico eSIM gives you real LTE data from about $5 a week, activated before you land at Cancún — essential for rideshare, maps, and coordinating dive shops or transfers.
🚐 Skip the Hassle — Cancún Airport Transfer
Free option: Free alternative: the ADO bus reaches downtown Cancún and Playa del Carmen for about $7 to $14
Arriving with luggage, kids, or after a late flight? A pre-booked private transfer meets you at Cancún arrivals, tracks your flight, and drives straight to your Hotel Zone or Riviera Maya hotel — skipping the timeshare booths and unmarked taxis that crowd the exit.
🚗 Explore the Riviera Maya — Car Rental
Free option: Free alternative: the ADO bus links Cancún, Playa del Carmen, and Tulum without a car
Cancún itself runs fine on transfers and the ADO bus, but a rental car unlocks the coast — Tulum's ruins, the inland cenotes, Puerto Morelos, and the drive to Chichén Itzá.
Watch for aggressive insurance upsells at the counter; Mexico requires third-party liability coverage, so confirm what your card includes before you go.
Emergency contacts in Cancún
Frequently asked questions about Denver to Cancún flights
Five carriers fly DEN to Cancún nonstop: United, Southwest, Frontier, Aeroméxico, and Volaris.
United is the full-service option, flying 737 and 757 metal with the only first-class cabin on the route from Concourse B. Southwest runs 737-700 and MAX 8 service with two free checked bags. Frontier and Volaris are the ultra-low-cost players on A320-family jets.
Aeroméxico rounds out the field as the only carrier bundling a checked bag and a meal into the base fare. That five-carrier depth is unusual for a Mountain-West gateway and keeps Denver fares competitive against connecting routings through Houston or Dallas.
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: June 2026 · Last editorial review: 2026-05-25 · Government info: travel.state.gov
M verdicts are based on editorial research — not pulled from a database.