💰 When is the cheapest time to fly from Chicago to Las Vegas?
This month: EDC Electric Daisy Carnival (Las Vegas Motor Speedway, mid-May) lifts last-week-of-May fares.
April is the genuine value floor at $169-$259 round-trip — pre-summer, no major conferences, weather in the 75-85°F range, with Frontier and Southwest running weekly Mon-Wed deals from $129-$159 RT. March and September are close.
Next 30 days — daily low fares
Tooltip shows stops + source. Cached fares from Aviasales.
📊 Price trends: Chicago to Las Vegas
Round-trip economy estimates across the next 12 months. Use the chart to spot the cheapest window before locking in dates.
Cheapest month
Jul · $108
Peak month
Jun · $138
Source: Aviasales · Prices are round-trip economy estimates · Updated May 2026
✈️ Which airlines fly from Chicago to Las Vegas?
Four airlines fly nonstop Chicago to Las Vegas after Spirit's May 2026 collapse — three from O'Hare (American T3, United T1, Frontier T5) and Southwest from Midway. Southwest is the only carrier with two free checked bags. American and United are the status-earner picks. Frontier is the last ULCC on.
Mubboo Pick for families, couples, and anyone checking bags. Two free checked bags is unique on the entire Chicago→LAS market — that policy alone saves $140-$210 round-trip vs Frontier and even more vs AA/UA basic economy. Southwest moved to **assigned.
Best for: families with checked bags, couples, Rapid Rewards earners, Loop and South Side travelers
Status earners' default at ORD. Terminal 3 has the strongest food and lounge ecosystem at O'Hare outside United's Polaris setup. AAdvantage Platinum Pro and Executive Platinum get complimentary Main Cabin Extra (34-36 inch pitch vs 30 inch standard) and free.
Best for: AAdvantage Platinum+ status, oneworld connecting traffic, ORD T3 commuters
United is the Premier 1K and Star Alliance Gold play at ORD. Terminal 1 is United's mainline hub with full domestic and international connectivity. Economy Plus adds 5 inches of pitch for $50-$80 each way and is included free for.
Best for: MileagePlus Premier 1K/Platinum/Gold, Star Alliance status, ORD T1 connecting traffic
Last ULCC standing on ORD-LAS after Spirit's collapse. Brett Snyder of crankyflier.com on News 3 Las Vegas (May 9, 2026): Frontier is 'continuing on the legacy of Spirit as the nation's ultra-low-cost carrier,' and Frontier's recent earnings call 'indicated the.
Best for: solo ultralight packers, flexible-date deal hunters, occasional LV commuters via GoWild!
Mubboo verdict: Southwest from MDW is the default after May 2026 — two free bags, 8-12 daily. American from ORD T3 wins for status. Skip Frontier unless flying carry-on only.
Prices shown are approximate averages based on recent searches (April 2026). Actual fares vary by date, class, and availability.
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Compare all flights →📅 When should you book Chicago to Las Vegas flights?
Book 4-6 weeks ahead for off-peak Chicago-to-LAS travel. The route has 14-22 daily nonstops across four carriers, so competition keeps prices honest most of the year.
For CES (Jan 6-9), book outbound 6-9 weeks ahead and return separately as a one-way — the asymmetry is huge (outbound $399-$549 one-way; return $189-$229).
For F1 weekend (Nov 19-21) and NFR (Dec 3-12), book 8-12 weeks ahead minimum. Tuesday-Wednesday departures undercut Thursday-Sunday by 15-25%.
Best flash-sale window is Tuesday 8-10pm Central — Frontier and Southwest fares often drop overnight with the other carriers matching by Wednesday afternoon.
M says: May is the last gentle month before summer. EDC weekend.
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 May: Memorial Day weekend (May 23-25) approaches summer pricing — book early or.
🎟️ Top activities in Las Vegas
Ranked by traveler ratings and recent booking volume.
Best Bars on Fremont: Happy Hour and Hidden Gems
$99.00Gold Elvis Wedding or Vow Renewal at Las Vegas Sign
$98.004-Hour Private Hidden Hot Springs Tour near Death Valley
$149Source: Viator · Prices in USD · Affiliate links — Mubboo may earn a commission.
✈️ Travel tips for Chicago to Las Vegas
REAL ID required for all domestic flights since May 2025 — Illinois licenses issued after July 2019 are REAL ID-compliant by default if the holder requested it; older licenses are typically not.
Check the upper-right corner for the gold or black star, or bring your passport.
ORD vs. MDW airport choice matters more than it did 12 months ago. T1 (United) and T2 (United Express + JetBlue) share faster screening at the H/K junction.
T3 (American) is the heaviest-traffic terminal and benefits most from TSA PreCheck on Friday afternoons. T5 (Frontier; Southwest until June 4) sits behind separate security and has consistent CLEAR lanes through 8pm.
Midway is simpler — single consolidated security, PreCheck and CLEAR open 4:00am to 9:00pm. After June 4, 2026, MDW is the only option for Southwest's two-bag policy on this route.
Status-tier lounge math: AAdvantage Platinum Pro+ and oneworld Sapphire+ get Admirals Club ORD T3 + LAS T1. MileagePlus Premier Gold+ and Star Alliance Gold get United Club ORD T1 + LAS T1.
Both airports deliver lounge value primarily on the Friday afternoon delay scenario — see Insider Tip 1 on summer thunderstorm taxi-out delays.
The 2-hour westbound time gain (Las Vegas is 2 hours behind Chicago year-round, both states observe DST) works in evening-departure travelers' favor — a 6pm ORD departure lands at LAS around 7:50pm local time with a full Vegas evening ahead.
☁️ Las Vegas climate overview
Best: Feb, Mar, Apr, Oct, Nov, DecAvoid: Jun, Jul, AugHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
57°/35°F
0.0″ rain
Feb
68°/45°F
0.5″ rain
Mar
72°/48°F
0.2″ rain
Apr
81°/55°F
0.0″ rain
May
91°/65°F
0.7″ rain
Jun
103°/75°F
0.2″ rain
Jul
105°/78°F
0.0″ rain
Aug
105°/79°F
0.7″ rain
Sep
94°/71°F
0.1″ rain
Oct
82°/58°F
0.7″ rain
Nov
70°/50°F
2.3″ rain
Dec
63°/42°F
0.8″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated May 2026
✈️ Ready to book? Compare Chicago to Las Vegas flights
Search flights →🛫 Flying from Chicago — airport tips
ORD Terminal 3 — American Airlines (American)
- Admirals Club ORD T3 at H/K junction — free for AAdvantage Platinum Pro+ on intl itineraries; $79 day pass otherwise
- Longest standard-line TSA wait of any ORD terminal — book PreCheck or arrive 90+ minutes early on Fri afternoons
- ExecPlat and oneworld Sapphire+ get priority security at T3 — adds 15-20 minutes back to your schedule
ORD Terminal 1 — United Airlines (United)
- United Club ORD T1 at Concourse C — free for Star Alliance Gold and Premier Gold+; domestic First passengers eligible on this segment
- Faster TSA than T3 in afternoon peak — PreCheck via the H/K junction recommended
- Connecting passengers from UA's Polaris arrivals get the cleanest ORD departure experience here
ORD Terminal 5 — Frontier (and Southwest through June 4) (Frontier and Southwest)
- Separate security from T1/T2/T3 — allow extra time if connecting between terminals via the airport people mover
- Most consistent CLEAR lanes through 8pm at ORD — useful for Frontier evening departures
- Southwest exits T5 (and ORD entirely) on June 4, 2026 — verify your boarding pass terminal for any post-June 4 bookings
MDW — Southwest Airlines hub (Southwest)
- Single consolidated security checkpoint serves all three concourses (A, B, C) — typical wait 10-15 min off-peak
- PreCheck and CLEAR open 4:00am-9:00pm — early morning Vegas departures benefit most
- MDW closes faster than ORD during winter snow and summer thunderstorms (single-runway concentration) — watch weather alerts
💡 Insider tips: Chicago to Las Vegas
Avoid Friday 4-7pm ORD departures in summer — 45-90 min taxi-out delays are reliableMubboo original data
Friday 4-7pm ORD westbound departures see 45-90 min taxi-out delays from May through September. ORD's runway 28R is the primary west-direction departure runway. On summer Fridays when convective weather builds.
LAS Terminal 1 D-Gates handles 95% of Chicago arrivals — Frontier uses Terminal 3 instead
All four current ORD-LAS carriers plus Southwest from MDW route through LAS Terminal 1 — except Frontier, which uses Terminal 3. Terminal 1 D-Gates is where AA, UA, and WN.
Southwest's two-bag policy is unique on the entire Chicago to Las Vegas market
Two free checked bags up to 50 lbs each — no carrier on the Chicago to Las Vegas route matches this. Frontier charges $50-$65 per bag each way; American and.
Tuesday-Wednesday LAS departures undercut Thursday-Sunday by 15-25% — every monthMubboo original data
Average ORD-LAS one-way fares depart 15-25% lower for Tuesday and Wednesday flights versus Thursday through Sunday. The premium is paid by the leisure traveler running the classic long-weekend pattern —.
United Premier 1K and AAdvantage ExecPlat unlock lounge access at LAS — ULCCs do not
United Club LAS Terminal 1 D-Gates and Admirals Club LAS Terminal 1 are both included with Star Alliance Gold and oneworld Sapphire+ status (when flying an international segment) and otherwise.
👥 Who flies this route — and what they should know
Weekend bachelor party group
Featured this monthRecommended: Southwest from MDW, Wanna Get Away Plus or Anytime fare. Groups of 5+ should book Southwest from MDW exclusively — the two-free-checked-bags policy absorbs golf clubs, garment bags, and bachelor-themed paraphernalia without nickel-and-diming, and Wanna Get Away Plus allows free same-day flight changes if Friday's poker run runs late. Thursday 4-7pm MDW departures land at LAS T1 C-Gates by 6:30-9pm Pacific. Hotel choice should drive arrival-terminal strategy: North Strip (Resorts World, Wynn, Encore) adds 8-10 minutes of taxi vs. mid-Strip MGM Park or Vdara.
CES conference tech traveler
Recommended: American Airlines from ORD T3, Main Cabin Extra or domestic First. CES (early January, ~180,000 attendees) is the year's single largest LAS demand surge. Outbound fares hit $399-$549 one-way during the Jan 4-6 inbound week; return fares Jan 9-10 are normal $189-$229 because most attendees are already gone. Book the outbound 6-9 weeks ahead; book the return separately as a one-way. AAdvantage Executive Platinum or UA Premier 1K should burn miles on the outbound — 25,000-35,000 miles often beats the cash fare by $200+.
Vegas family resort vacation
Recommended: Southwest from MDW, Wanna Get Away Plus. Chicago families of 3-5 with kids ages 6-14 traveling for a Strip resort vacation, F1 weekend hospitality, or grandparent multigenerational trip should book Southwest from MDW almost without exception. The two-free-checked-bags policy saves $140-$210 round-trip vs Frontier and more vs. AA/UA basic economy. The family will check 3-4 bags; the math is unambiguous. Time-of-year matters: April, early May, and mid-September are the family-budget windows when school flexibility allows — fares run $149-$219 per person RT. **Avoid F1.
⚖️ Flight delayed or canceled?
US DOT rules apply to all Chicago to Las Vegas flights. Airlines must refund canceled flights in cash (not vouchers) per the October 2024 Final Rule. For significant delays, carriers must rebook you on the next available flight at no extra charge. Meal and hotel policies vary: American and United are most generous with overnight hotel vouchers for mechanical delays. Frontier and Southwest provide the legal minimum. With **14-22 daily.
What Travelers Are Saying About Las Vegas
Based on recent discussions from r/travel, r/flights, and las vegas community subreddits • Updated May 2026
⚠️ Common Concerns
- r/vegas, r/LasVegas · 5 posts
Iconic Las Vegas establishments and buffets are closing, diminishing the city's unique character
— “Corporate greed replaced the soul of Vegas”
- r/LasVegas · 2 posts
Hotels are charging guests for minibar items they never consumed
— “Scammed hundreds for untouched champagne bottles”
- r/vegas · 2 posts
Tourism numbers have dropped significantly amid economic uncertainty
— “Visitor numbers fell to five year low”
- r/vegas · 2 posts
Health and safety concerns emerge at luxury hotels with disease outbreaks
— “Deadly lung disease cases at five star properties”
- r/vegas · 2 posts
Public transit becomes less accessible with fare increases and route eliminations
— “Bus fares rise fifty percent airport route removed”
💡 Trending Tips
- r/LasVegas · 2 posts
Check your hotel folio carefully at checkout to catch unauthorized minibar charges
— “Review charges before leaving to avoid scams”
Themes synthesized from public Reddit discussions. Quotes are paraphrased — never copied verbatim.
Frequently asked questions about Chicago to Las Vegas flights
No. Spirit Airlines ceased all operations the night of May 2, 2026, laying off 999 LAS-based employees and completing its final flight on May 14, 2026. Spirit was previously LAS's #2 carrier at 10.06% market share. After the shutdown, three airlines fly ORD→LAS (American, United.
Flights from Chicago
🎟️ Things to do in Las Vegas
1,304 activities · Live data from Viator
Private Valley of Fire Hiking and Sightseeing Adventure
Grand Canyon West Rim including Skywalk and Lunch
Shared Tour in Red Rock Canyon
VIP Ultimate Speed Boats and Machine Gun Shooting Adventure with Hoover Dam
Las Vegas Strip Self-Drive Rental
Two Hour Off-Road Driving Adventure in Las Vegas
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: May 2026 · Last editorial review: 2026-05-19
Prices last updated 2h ago · cached fares aggregating 800+ airlines and agencies · Check real-time prices →
M verdicts are based on editorial research — not pulled from a database.