CHI - KEF

$310 Find Cheap Flights from Chicago to Reykjavik

This is the cheapest one-way flight price found by a KAYAK user in the last 72 hours by searching for a flight from Chicago to Keflavik Intl departing on 12/5. Fares are subject to change and may not be available on all flights or dates of travel. Click the price to replicate the search for this deal.
1 adult
1 adult, Economy

KAYAK searches hundreds of travel sites at once for deals on flights to Reykjavik Keflavik Intl Airport

 
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Reykjavik, as well as popular online travel agencies
These are the airlines KAYAK users have selected most often from within our search results in flight searches from Chicago to Reykjavik, as well as popular online travel agencies
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Flight Deals

Cheap Flights from Chicago to Reykjavik (CHI-KEF)

 
Here are some of the best deals found on KAYAK recently from the most popular airlines for round-trip flights from Chicago to Reykjavik that are departing in the next months. While these flights were available on KAYAK in the last 72 hours, prices and availability are subject to change and deals may expire.
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent round-trip flight deals from Chicago to Keflavik Intl

Sun, Apr 5 - Fri, Apr 10
Icelandair Logo
10:40 pm - 9:45 amORD-KEF
6h 05mnonstop
Icelandair Logo
8:00 pm - 9:40 pmKEF-ORD
6h 40mnonstop
$365Icelandair
Find Deal
Mon, Dec 8 - Fri, Dec 12
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$366Icelandair
Find Deal
Mon, Dec 1 - Mon, Dec 8
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$368Icelandair
Find Deal
Sun, Nov 30 - Tue, Dec 9
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$379Icelandair
Find Deal
Tue, Dec 2 - Tue, Dec 9
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$400Icelandair
Find Deal
Sun, Apr 5 - Fri, Apr 10
Icelandair Logo
10:40 pm - 9:45 amORD-KEF
6h 05mnonstop
Icelandair Logo
8:00 pm - 9:40 pmKEF-ORD
6h 40mnonstop
$406Icelandair
Find Deal
Tue, Jan 13 - Sat, Jan 17
Scandinavian Airlines Logo
7:30 am - 11:55 pmORD-KEF
34h 25m2 stops
Scandinavian Airlines Logo
11:25 am - 4:55 pmKEF-ORD
35h 30m1 stop
$517Scandinavian Airlines
Find Deal
Thu, Feb 26 - Thu, Mar 5
Scandinavian Airlines Logo
7:30 am - 10:45 amORD-KEF
21h 15m2 stops
Scandinavian Airlines Logo
11:30 am - 4:55 pmKEF-ORD
35h 25m2 stops
$538Scandinavian Airlines
Find Deal
Tue, Mar 10 - Thu, Mar 19
Scandinavian Airlines Logo
1:30 pm - 11:55 pmORD-KEF
29h 25m2 stops
Scandinavian Airlines Logo
11:30 am - 5:45 pmKEF-ORD
35h 15m2 stops
$550Scandinavian Airlines
Find Deal
Mon, Nov 10 - Mon, Nov 17
Multiple Airlines Logo
1:50 pm - 6:40 amORD-KEF
10h 50m1 stop
Multiple Airlines Logo
4:45 pm - 11:28 pmKEF-ORD
12h 43m1 stop
$562Multiple Airlines
Find Deal

Everything you should know

Top airlines
Icelandair
Cheapest • from $365 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Top routes
ORD-KEF
Cheapest
ORD-KEF
Most popular
Insights
Insights
Insights
Insights
When to book
4 weeks
in advance
Our data shows that travelers who book at least 4 weeks in advance save around 21% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 9% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
Cheapest round-trip
$365
Overall average: $591
Icelandair
Sun 4/5Fri 4/10
ORD - KEF • Non-stop
Cheapest one-way
$310
Typical prices: $478-$646
Multiple Airlines
Fri 12/5
ORD - KEF • 3 stops
Start a new search
KAYAK searches 100s of sites at once to find you the best travel deals.
We hope you love your trip to Keflavik Intl!
Booking Insights

KAYAK's insights & trends for Chicago to Keflavik Intl flights

Get data-powered insights and trends into flights from Chicago to Keflavik Intl to help you find the cheapest flights, the best time to fly and much more.

What is the cheapest Chicago to Reykjavik Keflavik Intl Airport flight route?

Data is based on round-trip flight searches on KAYAK over the past month.

The cheapest return flight from Chicago to Reykjavik Keflavik Intl Airport costs $368 on the route between Chicago O'Hare Intl Airport (ORD) and Reykjavik Keflavik Intl Airport (KEF). It is also the most popular route.

What’s the cheapest day of the week to fly from Chicago to Reykjavik?

The average price of all round-trip flights from Chicago to Reykjavik Keflavik Intl Airport clicked on KAYAK for each day over the last 12 months.

When flying from Chicago to Reykjavik, you should consider leaving on a Thursday and avoid Saturdays if you are looking for the best rates. For your return to Chicago, you’ll find the best rates on Thursdays and the most expensive ones on Tuesdays.

What is the cheapest month to fly from Chicago to Reykjavik Keflavik Intl Airport?

To calculate monthly average prices, KAYAK takes all prices for each month over the last year for round-trip flights from Chicago to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the median of all values for each month.

The cheapest month for flights from Chicago to Reykjavik Keflavik Intl Airport is January, where tickets cost $597 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $745 and $731 respectively.

Can I save money by flying with a layover from Chicago to Reykjavik Keflavik Intl Airport?

The average round-trip price for all non-stop flights, flights with one layover, and flights with two layovers for the route found by users searching on KAYAK in the last 2 weeks.

No, with an average price for the route of $613, prices are generally cheapest when you fly direct.

How far in advance should I book a flight from Chicago to Reykjavik Keflavik Intl Airport?

To calculate weekly average prices, KAYAK takes all prices for each week before departure over the last year for round-trip flights from Chicago to Reykjavik Keflavik Intl Airport, removes the top 0.1% to account for outliers, and then takes the average of all the values for each week.

To get a below average price on the flight from Chicago to Reykjavik Keflavik Intl Airport, you should book around 4 weeks before departure, which saves you about 21% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonDecember
Cheapest flight$310
Best time to beat the crowds with an average 1% drop in price.
Most popular time to fly with an average 11% increase in price.
Flight from Chicago O'Hare Airport to Reykjavik-Keflavik Airport

When to book flights from Chicago to Keflavik Intl

Are your dates flexible? Find out the best times to travel from Chicago to Keflavik Intl based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip price
KAYAK looks at all historical flight data for each date to provide a predicted price for one-way trips or round-trips with a duration up to 40 days. While we try to provide actual minimum prices for each date, some prices are predictions and actual prices may differ.

FAQs for booking Chicago to Reykjavik flights

  • What is the cheapest flight from Chicago to Reykjavik Keflavik Intl Airport?

    In the last 3 days, the lowest price for a flight from Chicago to Reykjavik Keflavik Intl Airport was $310 for a one-way ticket and $365 for a round-trip.

  • Do I need a passport to fly between Chicago and Reykjavik?

    A passport is required to fly from Chicago to Reykjavik.

  • Which airports will I be using when flying from Chicago to Reykjavik?

    On your way to Reykjavik, you’ll fly out from one of these Chicago airports: Chicago Midway or Chicago O'Hare Intl. You’ll be landing at Reykjavik Keflavik Intl.

  • Which airlines offer Wi-Fi service onboard planes from Chicago to Reykjavik?

    All the following airlines offer inflight Wi-Fi service on the Chicago to Reykjavik flight route: British Airways, Iberia, Finnair, American Airlines, Air France, Lufthansa, United Airlines, and SWISS.

  • Which aircraft models fly most regularly from Chicago to Reykjavik?

    The Boeing 787-10 Dreamliner is the aircraft model that flies most regularly on the Chicago to Reykjavik flight route.

  • Which airline alliances offer flights from Chicago to Reykjavik?

    Star Alliance is the only airline alliance operating flights between Chicago and Reykjavik.

  • On which days can I fly direct from Chicago to Reykjavik?

    There are nonstop flights from Chicago to Reykjavik on a daily basis.

  • Which is the best airline for flights from Chicago to Reykjavik, United Airlines or Icelandair?

    The two airlines most popular with KAYAK users for flights from Chicago to Reykjavik are United Airlines and Icelandair. With an average price for the route of $754 and an overall rating of 7.4, United Airlines is the most popular choice. Icelandair is also a great choice for the route, with an average price of $652 and an overall rating of 7.0.

  • How does KAYAK find such low prices on flights from Chicago to Reykjavik?

    KAYAK is a travel search engine. That means we look across the web to find the best prices we can find for our users. With over 2 billion flight queries processed yearly, we are able to display a variety of prices and options on flights from Chicago to Reykjavik.

  • How does KAYAK's flight Price Forecast tool help me choose the right time to buy my flight ticket from Chicago to Reykjavik?

    KAYAK’s flight Price Forecast tool uses historical data to determine whether the price for a flight to Reykjavik from Chicago is likely to change within 7 days, so travelers know whether to wait or book now.

  • What is the Hacker Fare option on flights from Chicago to Reykjavik?

    Hacker Fares allow you to combine one-way tickets in order to save you money over a traditional round-trip ticket. You could then fly to Reykjavik with an airline and back to Chicago with another airline.

  • What is KAYAK's "flexible dates" feature and why should I care when looking for a flight from Chicago to Reykjavik?

    Sometimes travel dates aren't set in stone. If your preferred travel dates have some wiggle room, flexible dates will show you all the options when flying to Reykjavik from Chicago up to 3 days before/after your preferred dates. You can then pick the flights that suit you best.

KAYAK’s top tips for finding a cheap flight from Chicago to Reykjavik Keflavik Intl Airport

  • Looking for a cheap flight? 25% of our users found flights on this route for $418 or less one-way and $433 or less round-trip.

Prefer to fly direct from Chicago to Reykjavik?

 
Direct data is based off flight results for the next 60 days. Find direct flights from all airlines flying direct from Chicago to Reykjavik Keflavik Intl.
Find which airlines fly direct from Chicago to Reykjavik Keflavik Intl Airport, which days they fly and book direct flights.

Direct departures

Chicago to Reykjavik Keflavik Intl

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Direct returns

Reykjavik Keflavik Intl to Chicago

Monday

Icelandair

Icelandair

Tuesday

Icelandair

Icelandair

Wednesday

Icelandair

Icelandair

Thursday

Icelandair

Icelandair

Friday

Icelandair

Icelandair

Saturday

Icelandair

Icelandair

Sunday

Icelandair

Icelandair

See more direct flights

Reviews of the top airlines flying from Chicago to Keflavik Intl

 
See real verified KAYAK customer reviews for airlines flying from Chicago to Reykjavik. Airline scores are aggregated from all reviews left by passengers on KAYAK after flying with an airline. KAYAK doesn’t show reviews that are older than 5 years. Learn how KAYAK collects reviews.
Need help choosing which airline to fly with from Chicago to Keflavik Intl? KAYAK airline reviews give an overall score for each airline based on loads of factors, including comfort, boarding, in-flight entertainment and more, to make your decision easier. See airline scores according to verified KAYAK customer reviews.
7.4
United AirlinesOverall score based on 8991 reviews
7.1Entertainment
8.1Crew
7.3Comfort
6.6Food
7.7Boarding
Airline reviews

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

8.0 ExcellentBrad, Oct 2025ORD - YYZ
Read more United Airlines reviews

Not the fault of United—weather, reroute around weather, time sitting on tarmac, arrived couple hours late, too late for train into city necessitating a much pricier cab but weather…can’t be helped.

I will never book a flight through Cheap fare. They booked me from Portland Main . And would not give me a refund, so I bought 2 tickets one for 299. From Portland Main to ORD. Then I had to buy a ticket from Oregon PDX to ORD that was another 440. So Just so you know they even told me it was there fault but no refund. Bad bussniess. I did inform United but they said they couldn't help me due to the fact I booked through Cheap Tickets. Never again. And I'm spreding the word. I let everyone know at my 50th class reunion

The flight attendants were rude. Seemed like they didn’t want to be there. Except for one girl that was really nice. Seats are sooooo uncomfortable. They give you a piece of paper and a thin cushion for a pillow and blanket that does nothing. Airlines have gone way downhill, especially United international flights. Food was disguting. Definitely flying ANA next time.

Crew and customer service were excellent. This flight also had plenty of leg room and seat mounted screens for entertainment. A very pleasant flight all around!

It would have been better if the crew has supported my husband's reasons for needing to keep the space clear around his feet, rather than insisting that he put his knapsack in that space.

Subject: Formal Complaint: Discriminatory and Unprofessional Conduct – Request for Immediate Action & Compensation Dear [Airline Customer Relations Team], I am writing to file a formal complaint regarding my recent travel experience with [Airline], which was by far the worst I have ever encountered. What occurred was not only unprofessional, but in several instances discriminatory, unsafe, and unacceptable. On the first leg of my trip, I arrived only four minutes past check-in. Instead of making any attempt to resolve the matter, your representative flatly denied me boarding and made me wait while she attended to passengers who arrived after me. By the time a manager intervened, it was too late to board, costing me time, money, and unnecessary frustration. The second leg of my trip (Chicago–San Francisco) raised even more serious concerns. From the outset, it was apparent that the staff—particularly two attendants—prioritized Caucasian passengers while dismissing African American and minority passengers. • When a Caucasian passenger in the exit row refused to comply with federal safety requirements, I, as a first responder, immediately offered to switch seats and assume the responsibility. My offer was blatantly ignored, and instead, a Caucasian passenger seated further up was chosen. This was discriminatory and deeply insulting, especially as I was actively de-escalating the situation that could have delayed the flight further. • During a lengthy tarmac delay of over 90 minutes, passengers were given conflicting and unreasonable instructions that created unnecessary distress and tension. • Throughout the flight, a visibly intoxicated passenger directly in front of me was disruptive, rude to others, failed to comply with seatbelt and electronic device rules, and yet faced no enforcement from the crew. In stark contrast, I was singled out for repeated compliance checks even though I was following every rule. This unequal treatment was so obvious that multiple passengers around me spoke up in my defense. This pattern of behavior demonstrated a clear lack of professionalism, disregard for passenger safety, and discriminatory treatment. I expect far better from an airline of your stature. As a paying customer subjected to this unacceptable treatment, I am formally requesting: 1. A full investigation into the conduct of the staff on both flights. 2. A written apology acknowledging the discriminatory and unprofessional behavior I endured. 3. Appropriate compensation for the distress, inconvenience, and mishandling of my travel. If this matter is not addressed promptly and thoroughly, I will have no choice but to escalate my complaint further, including filing with the U.S. Department of Transportation and sharing my experience through other channels. I trust [Airline] will take this complaint seriously and provide a timely resolution.

Check in was quick and easy during early hours. Flight was on time, and customer services was a plus.

Once we got in the air the pilot made up some of the time of the delay. So that was really nice.

We had a layover from YVR to Denver. We bought 4 bottles of Absolut Vodka at the YVR Duty Free for $116.20, after going through security and American Customs Pre Clearance at YVR, Vancouver. When we landed in Denver, United put us behind the American Customs as well as TSA again for some reason. We were forced to go through American Customs and TSA again. TSA confiscated our rightfully owned Duty Free Absolut Vodka bottles. Because United incorrectly forced our flight behind American border and TSA again, we missed the connecting flight. After United put us on a later flight, we eventually arrived in Chicago very late, with hardly any sleep. I am looking for compensation from United for our incorrectly confiscated Absolut Vodka bottles worth $116.20, as well as compensation for incorrectly putting us behind American Customs and TSA again, causing us to miss our connecting flight, making us arrive extremely late in Chicago.

Excellent flight. Boarding was efficient and departure was on time. Smooth flight with on time arrival. Deplaning was also efficient.

It was too cold in the plane my feet froze

Service was excellent. Food and drinks were very good except for a greasy lump of a donut at the end of the flight that left us both feeling internally disgusted.

Handling our luggage was the biggest issue - they lost it and we got it almost 3 days later. Really threw off the beginning of our trip and we really had to change our itinerary accordingly.

Seat was hard and uncomfortable and the temperature too warm and uncomfortable.

I flew Icelandair with my partner from Prague to the US. Overall flight time was around 12 hours, with a connecting flight in Iceland. I have flown internationally for years and with multiple airlines. Every airline serves you a meal when traveling internationally. Icelandair not only did not offer an inclusive meal, but they did not even offer a snack. The only things they served over our long flight was water and coffee. Ridiculous! Never again will I fly with Icelandair.

Best smelling onboard bathrooms ever. Even after use the whole flight. Biggest overhead bins. Most legroom in economy class. Great Icelandiic music. Really nice staff. Icelandair is awesome! (Don’t fly Air Canada! During the strike they lied about no flights available (I booked this flight myself) and hid the process to get money back on their website by obscuring menu titles, then made it difficult and time consuming to fill out. I’m Canadian. Don’t trust Air Canada!

It was good. The air plane is clean and staff were friendly.

Worst airline I’ve ever flown. Delayed 5.5 hrs, missed connecting flight, and missed an entire day of vacation. Zero customer service

Everything sucked. No food, one small glass of water, a tiny coffee, 5.5 hour delay with no customer service. Would never recommend flying them.

The crew was wonderful at check in, the gate and on board. Felt the luggage had more room than the passengers. The seats were smaller than most domestic U.S. airlines. I'm only 5'2" and I had little legroom. There were only 2 bathrooms in coach. Needed more. The flight was very smooth but not the most comfortable.

Everything you need to know for your flight from Chicago to Keflavik Intl

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