💰 When is the cheapest time to fly from Chicago to Reykjavik?
This month: The year's most expensive month, often 90% above the January floor for the same nonstop routing.
Fares swing from a winter floor in the $340s to a summer ceiling above $600. January-March and November are cheapest; June-August run 60-90% higher as both airlines add capacity for midnight-sun season.
Here's a month-by-month look at prices on this route:
✈️ Which airlines fly from Chicago to Reykjavik?
Icelandair is the only year-round nonstop; United adds a seasonal summer nonstop. Delta and American sell one-stop itineraries through their own hubs, useful mainly for loyalty-program members staying on one airline's metal.
Icelandair is the default booking on this route. It's the only carrier flying ORD-KEF twelve months a year, on 737 MAX 8/9 aircraft with a 3-3 economy layout. Saga Premium swaps in wider recliner seats, lounge access, and a hot meal — a real upgrade over economy for $600-$1,000 more, even without lie-flat seating. The free stopover program lets Chicago travelers break an onward-Europe trip in Reykjavik for up to 7 nights at no added airfare.
Best for: year-round schedule flexibility and the free multi-day Iceland stopover
United is the summer-only alternative when Icelandair's fares spike. The seasonal 737 rotation runs roughly May through October, then disappears from search entirely — confirm exact dates before building a shoulder-season trip around it. Polaris business class has lie-flat seats, unlike Icelandair's Saga Premium recliner, which matters for red-eye sleepers. Basic Economy strips free seat selection and the first checked bag, so budget travelers should book standard Economy instead.
Best for: MileagePlus earners and United Polaris business seats on mainline metal
Delta's appeal is staying on one airline's metal end to end. Routing through JFK or Boston keeps the connection tight — most itineraries hold a 90-minute to 2-hour window rather than a sprawling layover. It runs $100-$150 more than Icelandair's nonstop and adds a full flight segment, so it mainly wins for Medallion elites protecting status or SkyMiles Companion Certificate redemptions.
Best for: SkyMiles loyalists who want Delta metal the entire way
American makes sense mainly as a connector, not a Reykjavik-only booking. Routing through Philadelphia adds 4-6 hours over either nonstop, so it rarely beats Icelandair or United on price or time for a straight Chicago-Reykjavik trip. It earns its keep when the itinerary continues past Iceland into a oneworld city — book the through-fare rather than pricing each leg separately.
Best for: AAdvantage/oneworld flyers continuing beyond Reykjavik into mainland Europe
Mubboo verdict: Icelandair's nonstop from O'Hare is the default pick — book 10-12 weeks out, fly midweek, and skip United's July fares that spike 40% above shoulder season.
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 Reykjavik flights?
Book 8-12 weeks before departure for Icelandair's lowest published fares; Iceland routes don't follow the 21-day domestic sweet spot US flyers expect. Tuesday and Wednesday departures price 10-15% below Friday and Sunday, since Icelandair's stopover traffic clusters around weekend arrivals. United's seasonal nonstop opens for sale roughly 11 months out each winter — set a fare alert in November for the following summer's schedule. Icelandair runs its own flash sales 3-4 times a year, typically January, April, September, and Black Friday week, which can beat the sub-$350 shoulder-season floor by another 10%. Avoid booking the week before Christmas or over late-January festival weekends, when Reykjavik hotel and flight demand both spike together.
Warmest month at 50-58°F with the most rainfall variability — midnight sun continues, driving the year's highest demand.
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 Jul: Avoid July unless dates are fixed; shoulder months deliver similar weather for less.
🏙️ Why visit Reykjavik?
Reykjavik is less a bucket-list city stop than the gateway to Iceland's Ring Road nature — glaciers, waterfalls, and geothermal fields sit 1-3 hours from a capital small enough to walk end to end in 25 minutes. Winter brings Northern Lights and sub-$400 flights; summer brings 20+ hours of daylight and easy Golden Circle access. Locals favor the Sky Lagoon's cliffside setting as a quieter alternative to the crowded Blue Lagoon, and video reviewers consistently flag Iceland's rapid weather swings — dress in waterproof layers regardless of forecast. The krona economy runs almost entirely on cards, so currency exchange is largely unnecessary.
What makes Reykjavik worth the flight:
Hallgrimskirkja's 244-foot tower anchors the skyline and doubles as the city's best free viewpoint. The Golden Circle loop covers Thingvellir National Park, Gullfoss waterfall, and the Geysir geothermal field in a single day trip. The harbor district mixes whale-watching departures with the glass-paneled Harpa concert hall.
Best neighborhoods to explore:
The compact downtown core where most hotels and restaurants sit within a 20-minute walk. Best for travelers without a rental car.
Reykjavik's working harbor turned tourist hub, home to whale-watching operators. Book winter Northern Lights boat tours here directly.
A former fishing district now home to design studios and Reykjavik's craft brewery scene. Less crowded than 101 in peak summer.
A residential area 10-15 minutes from downtown with lower hotel rates and easy Sky Lagoon access. Best for road-trippers renting a car at KEF.
Don't miss:
Hallgrimskirkja
Iceland's tallest church at 244 feet; the observation tower costs roughly $10 for the best skyline view.
Browse Hallgrimskirkja tours →Blue Lagoon
The iconic geothermal spa 20 minutes from KEF; entry runs $65-$95 and needs advance booking.
Browse Blue Lagoon tours →Golden Circle
A single-day driving loop covering a national park, a major waterfall, and an active geyser field.
Browse Golden Circle tours →Sky Lagoon
A cliffside geothermal pool closer to downtown than Blue Lagoon, preferred by locals for shorter lines.
Browse Sky Lagoon tours →Jokulsarlon Glacier Lagoon
A 4-5 hour drive south with icebergs floating toward the sea; most book it as a guided day tour.
Browse Jokulsarlon Glacier Lagoon tours →Mubboo Verdict:
Reykjavik rewards a base-and-radiate trip more than a city-only stay — spend 1-2 nights downtown and dedicate the rest to Ring Road day trips within 3 hours of KEF.
🎟️ Top activities in Reykjavik
Ranked by traveler ratings and recent booking volume.
Private Iceland Tour - Hidden Gems & Local Experience
$2300Private Jökulsárlón Glacier Lagoon 2 Day Tour & Glacier Hike
$7240Private 2-Day Glacier Lagoon, Ice Cave and Northern Lights
$7400Source: Viator · Prices in USD · Affiliate links.
🧳 What do you need to know before flying to Reykjavik?
🛂 Do Americans need a visa for Reykjavik?
US passport holders don't need a visa for stays under 90 days. The EU's ETIAS pre-screening system begins rolling out in late 2026 with a transition period before it's mandatory — check current requirements at travel.state.gov before booking. [GOV]
🕐 What's the time difference?
Iceland runs on GMT year-round with no daylight saving time, putting it 6 hours ahead of Chicago in winter (CST) and 5 hours ahead in summer (CDT).
🚇 How do you get from the airport to the city?
Keflavik (KEF) to downtown Reykjavik: about 30 miles / 45 minutes.
| Option | Time | Cost | Best for |
|---|---|---|---|
| Flybus | 45 min | ~$30-$40 one-way | Most travelers, pre-booked seat, hotel drop-off |
| Airport Express | 45 min | ~$25-$35 one-way | Budget travelers comparing coach operators |
| Taxi | 35-40 min | ~$130-$160 | Groups of 3-4 splitting the fare |
| Rental car | 35-40 min | Varies by rental + fuel | Golden Circle road-trippers |
Editor's pick: book Flybus in advance, it's the only option with a guaranteed seat and direct hotel drop-off.
💷 What about money and tipping?
The Icelandic krona (ISK) trades at roughly 126 per US dollar. Iceland runs a near-cashless economy — cards cover everything from bus fares to gas pumps, and tipping isn't expected.
Reykjavik currency snapshot
1 USD = 126 ISK
1 ISK = $0.0079 USD
Icelandic Krona
Cash
ATMs offer the best rate. Avoid airport currency desks.
Tipping
Card-first economy — cards work for everything including buses. Tipping not expected. ATMs at Keflavik airpo…
Cards
Visa and Mastercard widely accepted. Tell your bank before you go.
Source: open.er-api.com · Updated Jul 1, 2026 · Rates fluctuate — check before booking.
📱 Will your phone work?
Iceland's country code is +354. Most US carriers charge around $10/day for international plans in Iceland; an eSIM bought before arrival typically costs less for a week-long trip.
☁️ Reykjavik climate overview
Avoid: JanHistorical highs, lows, and rainfall by month. Plan packing and outdoor time around the extremes.
Jan
34°/25°F
6.6″ rain
Feb
42°/35°F
1.9″ rain
Mar
42°/33°F
5.8″ rain
Apr
47°/38°F
2.4″ rain
May
52°/43°F
3.4″ rain
Jun
52°/43°F
3.3″ rain
Jul
58°/50°F
3.5″ rain
Aug
57°/49°F
5.6″ rain
Sep
53°/44°F
6.9″ rain
Oct
44°/37°F
6.6″ rain
Nov
36°/28°F
0.6″ rain
Dec
40°/33°F
4.3″ rain
Source: Open-Meteo Archive API · 2025 historical data · Updated July 2026
Ready to lock in your fare? Search live prices below:
✈️ Ready to book? Compare Chicago to Reykjavik flights
Search flights →🛫 Flying from Chicago — airport tips
KEF Hall A — Icelandair and United gates (Icelandair / United Airlines)
- Saga Lounge and Priority Pass lounge access sit past security in Hall A
- Duty-free shopping is largest here — budget 20 extra minutes for Icelandic spirits or wool goods
- Gate walks can run 10-15 minutes at the far end of the pier
KEF Hall B — arrivals and overflow gates (Delta / American (connecting arrivals))
- Baggage claim and rental car counters are both in this hall
- Flybus and Airport Express pickup points are a short walk outside Hall B
- Passport control lines run longest here during the 7-9am arrival wave
🚐 Skip the hassle? Book a private airport transfer
Fixed price, meet & greet at arrivals, door-to-door service
💡 Insider tips: Chicago to Reykjavik
Take Icelandair's free stopover before you book a separate Iceland trip
Icelandair lets any Chicago passenger connecting onward to Europe add up to 7 nights in Reykjavik at no extra airfare over a standard connecting fare. This only applies when Iceland is a connection, not the final destination — structure the booking as Chicago-Reykjavik-[European city], not a round trip to Reykjavik alone.
United's ORD-KEF nonstop vanishes every winter — don't assume it's year-roundMubboo original data
United's seasonal nonstop typically runs May through October and drops off flight search tools entirely once the season ends, tripping up travelers who saw it advertised over summer and assumed it was permanent. Confirm exact start and end dates directly with United before building a shoulder-season itinerary around it.
Rent your car at Keflavik, not Reykjavik's domestic airport
First-time visitors frequently confuse Reykjavik's small domestic airport (RKV), used for internal Iceland flights, with Keflavik International (KEF), where international arrivals and rental counters actually are. Booking a car pickup at the wrong airport means an extra taxi ride to fix it — always confirm the airport code is KEF.
Tuesday and Wednesday departures run 10-15% cheaper on this routeMubboo original data
Fare data on ORD-KEF consistently shows midweek departures pricing below Friday and Sunday, the two days Icelandair's stopover traffic clusters around weekend Reykjavik arrivals. Flexible daters searching a full week of options routinely find a $50-$100 spread between the cheapest and most expensive day in the same month.
Economy Light saves upfront but adds up fast if you're checking a bagMubboo original data
Icelandair's cheapest Economy Light fare excludes a checked bag entirely — adding one at booking runs $60-$95 each way on this transatlantic route, with airport add-ons costing roughly 20% more. Anyone checking a bag both directions should price Economy Standard first; the bundled bag often costs less than Light-plus-add-on.
👥 Who flies this route — and what they should know
Family geothermal spa trip
Featured this monthFly the June-August window when 20+ hours of daylight erase the bedtime-schedule stress of overnight transatlantic travel with kids, even though fares run $150-$250 above winter's floor. Icelandair's 737 MAX cabin has no dedicated kids' entertainment system, so download shows before boarding rather than counting on seatback screens. The Blue Lagoon and Sky Lagoon both accept children, but Blue Lagoon requires reservations weeks ahead in peak summer — book alongside the flight, not after arrival. Mubboo's pick: choose United's seasonal nonstop if summer dates align, since Economy Plus has more legroom than Icelandair's standard economy for a family stretching out on a 5-6 hour flight. Anti-rec: don't plan a Northern Lights add-on for a summer family trip — 20+ hours of daylight makes aurora viewing physically impossible until late August at the earliest.
First-time Northern Lights chaser
Fly Icelandair's nonstop and land in the September-March aurora window — book economy on a Tuesday departure to catch the sub-$400 fares that run through November. Clear a full week if possible; cloud cover cancels more nights than it doesn't, and a single overnight trip risks zero visibility. Base in Reykjavik for the Northern Lights buses that run 30-45 minutes outside the city's light pollution, and check the Icelandic Met Office aurora forecast each evening rather than locking in a single tour date before departure. Mubboo's pick: fly in on a Wednesday, stay 5+ nights, and book aurora tours night-by-night once you see the forecast. Anti-rec: skip a 2-3 night trip built only around Northern Lights — the odds of a clear, active night in any single 48-hour window are genuinely poor, even in peak season.
Iceland stopover traveler
Book Chicago-Reykjavik-[European city] as one itinerary on Icelandair rather than pricing Iceland as a separate trip — the stopover adds up to 7 Reykjavik nights at zero extra airfare over a standard connecting fare. This works best for travelers already headed to Copenhagen, Paris, or London, since Icelandair's network connects onward from Keflavik same-day. Mubboo's pick: use 3-4 stopover nights, enough for the Golden Circle and Blue Lagoon without eating into the main-trip days. Anti-rec: don't stack a stopover onto United's seasonal service — United doesn't offer the free-stopover fare structure, so the same routing costs full separate-ticket price. Confirm baggage checks through to the final city rather than at Reykjavik.
Points-and-miles optimizer
Chase Sapphire Reserve and Capital One Venture points both transfer to partners covering this route, but cash often beats points here given ORD-KEF's sub-$650 peak-season ceiling — a rare route where paid fares can underprice award redemptions. Icelandair's Saga Premium runs $900-$2,000 cash, which usually undercuts a comparable partner-award business redemption once taxes and fees are added. United MileagePlus members should watch for Polaris upgrade space on the seasonal nonstop, since award seats open closer to departure on leisure routes like this than on major business corridors. Mubboo's pick: price cash Saga Premium before burning points, and set a MileagePlus upgrade alert for the May-October window. Anti-rec: don't transfer points speculatively months out — Iceland routes rarely open premium award space earlier than 60-90 days before departure.
Budget Golden Circle road-tripper
Target the January-March or November fare floor — sub-$400 round trip on Icelandair — and rent a car directly at Keflavik rather than downtown Reykjavik to skip a second transfer. The Golden Circle (Thingvellir, Gullfoss, Geysir) is drivable in a single long day from Reykjavik, but winter road conditions and short daylight (as little as 4-5 hours in December) make a 2-day pace safer. Pack for temperatures in the 25-40°F range with genuine waterproof layers, not just a warm coat. Mubboo's pick: book Economy Light only if you're checking zero bags; the savings evaporate once you add luggage on a budget trip. Anti-rec: skip renting a car for a Reykjavik-only, no-Golden-Circle trip — city parking and bus access make it dead weight.
Business traveler with Europe connection
Book Icelandair's year-round nonstop for reliability over United's seasonal schedule when a meeting date can't shift with airline capacity changes. Saga Premium's recliner seat and lounge access cover a same-day arrival meeting reasonably well despite lacking lie-flat seating, since the eastbound flight time allows a red-eye-style overnight rest. Confirm connection times carefully if continuing past Reykjavik — Icelandair's KEF hub schedules most onward European departures within 60-90 minutes of transatlantic arrivals, tight but workable. Mubboo's pick: fly the last Icelandair departure of the day to land in Reykjavik with a same-morning onward connection. Anti-rec: don't route through Delta or American's one-stop options for a single-city Reykjavik business trip — the added connection risk isn't worth it when Icelandair's nonstop covers it directly.
⚖️ Flight delayed or canceled?
US-Iceland flights aren't covered by EU261 since Iceland isn't in the EU, but Icelandair still follows EU/EEA-aligned compensation rules as an EEA member state carrier; delays over 3 hours on Icelandair-operated flights can qualify for compensation under Icelandic aviation regulations. US carriers (United, Delta, American) fall under US DOT rules instead — no automatic cash compensation, but airlines owe rebooking and, for controllable delays, meals or hotels.
Flight delayed or cancelled? You may be owed up to €600 in compensation.
📱
Free option: Free workaround: most Reykjavik hotels, cafes, and the KEF terminal itself offer free Wi-Fi, so an eSIM is a convenience, not a necessity, for short trips.
Skip the roaming fee before your flight lands. Iceland has strong 4G/5G coverage even outside Reykjavik, so a data eSIM covers navigation and translation apps from the KEF taxi stand onward.
🛡️
Free option: Free workaround: many premium credit cards (Chase Sapphire Reserve, Amex Platinum) already include trip-delay and interruption coverage — check your card benefits before buying a separate policy.
Winter weather cancels Iceland flights more often than most US routes. Trip-interruption coverage matters here because KEF's storm-driven delays can cascade into missed onward connections.
🚌
Free option: Free workaround: some downtown hotels coordinate their own shuttle pickup with Flybus at no added booking fee — ask before paying for a private transfer.
There's no train or metro between KEF and Reykjavik. Pre-booking a coach seat guarantees a spot on the 45-minute ride and usually beats walk-up pricing.
Emergency contacts in Reykjavik
Frequently asked questions about Chicago to Reykjavik flights
No visa is required for US passport holders staying under 90 days.
Iceland is part of the Schengen Area, and Americans travel visa-free for short tourist or business stays. The EU's ETIAS pre-screening system begins rolling out in late 2026 with a transition period before enforcement, so check current requirements at travel.state.gov before booking. Confirm your passport won't expire within 3-6 months of your return date.
Flights from Chicago
Popular Reykjavik routes
Researched by Mubboo Editorial Team · Reviewed by Richard Lee, Founder
Prices from Aviasales. Seasonal advice updated: July 2026 · Last editorial review: 2026-07-01T17:54:53.100Z · Government info: travel.state.gov
Prices last updated just now · cached fares aggregating 800+ airlines and agencies · Check current prices →
M verdicts are based on editorial research — not pulled from a database.