CHI - KEF

$212 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 9/19. 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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Flights 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

Tue, Nov 11 - Sun, Nov 16
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$331Icelandair
Find Deal
Wed, Oct 8 - Wed, Oct 15
Icelandair Logo
7:25 pm - 6:40 amORD-KEF
6h 15mnonstop
Icelandair Logo
7:35 pm - 9:15 pmKEF-ORD
6h 40mnonstop
$339Icelandair
Find Deal
Tue, Dec 30 - Wed, Jan 7
Icelandair Logo
6:30 pm - 6:45 amORD-KEF
6h 15mnonstop
Icelandair Logo
4:30 pm - 5:20 pmKEF-ORD
6h 50mnonstop
$341Icelandair
Find Deal
Mon, Aug 11 - Fri, Aug 22
Icelandair Logo
10:15 pm - 9:20 amORD-KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pmKEF-ORD
6h 50mnonstop
$344Icelandair
Find Deal
Sun, Aug 17 - Tue, Aug 26
 Logo
6:20 am - 6:25 amORD-KEF
19h 05m1 stop
 Logo
5:00 pm - 7:07 pmKEF-ORD
31h 07m2 stops
Fri, Dec 5 - Thu, Dec 11
Scandinavian Airlines Logo
7:20 pm - 10:30 amORD-KEF
33h 10m2 stops
Scandinavian Airlines Logo
11:30 am - 4:45 pmKEF-ORD
35h 15m1 stop
$513Scandinavian Airlines
Find Deal
Sun, Aug 17 - Tue, Aug 26
 Logo
8:12 pm - 6:25 amORD-KEF
29h 13m2 stops
 Logo
5:00 pm - 7:07 pmKEF-ORD
31h 07m2 stops
Thu, Aug 28 - Tue, Sep 2
United Airlines Logo
8:40 am - 8:10 amORD-KEF
18h 30m1 stop
United Airlines Logo
9:50 am - 2:29 pmKEF-ORD
33h 39m2 stops
$542United Airlines
Find Deal
Thu, Sep 25 - Wed, Oct 1
KLM Logo
9:35 am - 6:20 amMDW-KEF
15h 45m1 stop
KLM Logo
8:45 am - 6:35 pmKEF-MDW
14h 50m1 stop
$550KLM
Find Deal
Thu, Aug 21 - Thu, Aug 28
KLM Logo
1:43 pm - 7:00 amMDW-KEF
12h 17m1 stop
KLM Logo
9:30 am - 5:37 pmKEF-MDW
13h 07m1 stop
$626KLM
Find Deal
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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.

How much is a round-trip flight from Chicago to Reykjavik Keflavik Intl Airport?

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

The cheapest price for flight routes found by users searching on KAYAK in the last 2 weeks for round-trip flights from Chicago to Reykjavik Keflavik Intl Airport.

Our data shows that the cheapest route for a return flight from Chicago to Reykjavik Keflavik Intl Airport cost $359 and was between Chicago O'Hare Intl Airport (ORD) and Reykjavik Keflavik Intl Airport (KEF). On average, the best prices are found if you fly this route. The average price for a return flight for this route is $359.

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 Saturdays 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 $601 (return) on average. On the other hand, the most expensive months are June and July, where the average cost of round-trip tickets is $738 and $725 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 $1,468, 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 6 weeks before departure. For the absolute cheapest price, our data suggests you should book 20 weeks before departure.

Good to know

Low seasonDecember
High seasonJune
Cheapest flight$212
Best time to beat the crowds but there is an average 2% increase 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 $212 for a one-way ticket and $331 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, SWISS, Lufthansa, and United Airlines.

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

    The Boeing 757-200 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 $722 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 $656 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 $253 or less one-way and $515 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, United Airlines

Icelandair, United Airlines

Tuesday

Icelandair, United Airlines

Icelandair, United Airlines

Wednesday

Icelandair, United Airlines

Icelandair, United Airlines

Thursday

Icelandair, United Airlines

Icelandair, United Airlines

Friday

Icelandair, United Airlines

Icelandair, United Airlines

Saturday

Icelandair, United Airlines

Icelandair, United Airlines

Sunday

Icelandair, United Airlines

Icelandair, United Airlines

See more direct flights

Direct returns

Reykjavik Keflavik Intl to Chicago

Monday

Icelandair, United Airlines

Icelandair, United Airlines

Tuesday

Icelandair, United Airlines

Icelandair, United Airlines

Wednesday

Icelandair, United Airlines

Icelandair, United Airlines

Thursday

Icelandair, United Airlines

Icelandair, United Airlines

Friday

Icelandair, United Airlines

Icelandair, United Airlines

Saturday

Icelandair, United Airlines

Icelandair, United Airlines

Sunday

Icelandair, United Airlines

Icelandair, United Airlines

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 8846 reviews
8.1Crew
7.3Comfort
7.7Boarding
7.0Entertainment
6.6Food
Airline reviews

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

8.0 ExcellentAnonymous, Jul 2025ORD - SUX
Read more United Airlines reviews

It was great, I’m very grateful for the pilots and crew flight attendants for everything.

Evidently, my seat had the only broken TV. I couldn’t plug it in, get it to come on, or watch anything, and of course, no one could fix it while we were on the plane. The service was good and the boarding was quick

The boarding of took of late.The presentation of the food was horrable as was the tast of the food was cold and tastless.

Delay and keep changing gates. I have to run around from B to C then to E.

I was charged for my daughters bag when I am supposed to receive two free checked bags with my United Explorer card.

The schedule to Moline changed 5 times. The gate changed 6 times. That is a pathetic way to run an airline. No wonder that no one in our company flies on United Express to or from Moline. Changes happen most of the time. I learned my lesson on this trip…never again!

Flight was great. Efficient boarding. Short flight. Early arrival. Friendly flight crew. The entertainment system did not work well. Could not access it until the aircraft reached 10K feet or more. Lots of glitches.

A bit rush for transit. Food and entertainment are not available

Boarding was a little difficult. The gate area at O'Hare was very small and crowded due to multiple gates in the area. Could not hear the intercom, so had to rely on signage to see when my group was boarding and the signage was blocked by passengers standing in the gate. Flight was great and we arrived in Montreal on time.

Smooth boarding process. Early departure, smooth flight, early arrival. The entertainment package has very good recent movie options. The flight crew were friendly and professional.

Still one of my favorite airlines, but the entertainment options were a bit lacking. It didn't help that my screen didn't work on one of the legs of the trip.

The plane was very small and the aisle was so narrow that every time someone walked by they rubbed against me, so it was very uncomfortable.

Everything was good. Only issue comes from being vegan and flying. The food options are super limited.

Overall good for an economy fare. IMO the movie selection could be improved. Great that you can now connect bluetooth headphones to the entertainment system.

For a four hour flight, I was disappointed that everything was for purchase except for coffee, tea, or water. The disembarking in Iceland was so inefficient and time-consuming. We landed and stopped in the middle of the tarmac, had to disembark in the rain, and then squeeze into a bus which took us to the airport. Crazy! How does that work in winter?

Paid for a Premium seat...minimal recline, no footrest. Maybe slightly wider than a cheap economy seat. Zero chance of getting any rest on this plane

Comfort of seats is not good. Like sitting on a rock for 6 hours. Also no in flight food and limited beverages unless you pay is not nice. Need flight to be dark during the “night” but attendants don’t ask for shades to be lowered..

Seats in premier saga class were narrow and hard. Very uncomfortable for a 5-hour flight.

I had an exit row and so was Comfortable on the long flight.

For an economy lite experience, it's by far the best I've had. New planes, clean, great destinations. Very happy to have discovered Iceland Air.

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

Information on your arrival and departure airports

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