CHI - KEF

$298 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 3/21. 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, 0 bags

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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Everything you should know

Cheapest round-trip
$449
Overall average: $570
Icelandair
Sun 4/19Sat 4/25
ORD - KEF • Non-stop
Cheapest one-way
$298
Typical prices: $427-$511
Multiple Airlines
Sat 3/21
ORD - KEF • 2 stops
Top airlines
Icelandair
Cheapest • from $449 (round-trip)
United Airlines
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
+1
Airline reviews
Airline reviews
+1
Nonstop flights
Every day
You can fly direct with Icelandair and United Airlines. Average duration is 6h 10m
Direct flights
Direct flights
+1
+1
Direct flights
Direct flights
+1
Top routes
ORD
-
KEF
Cheapest
ORD
-
KEF
Most popular
Insights
Insights
Insights
Insights
When to book
3 weeks
in advance
Our data shows that travelers who book at least 3 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
Insights
Insights
When to travel
January
Cheapest • 18% price drop
June
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
+1
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!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Chicago to Keflavik Intl (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 Keflavik Intl 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 19 - Sat, Apr 25
Icelandair Logo
10:25 pm - 9:30 am
ORD
-
KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$449Icelandair
Sun, Apr 19 - Sat, Apr 25
Icelandair Logo
7:25 pm - 6:40 am
ORD
-
KEF
6h 15mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$450Icelandair
Sun, Apr 19 - Sat, Apr 25
Icelandair Logo
10:25 pm - 9:30 am
ORD
-
KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$453Icelandair
Mon, Apr 20 - Mon, Apr 27
Virgin Atlantic Logo
1:24 pm - 9:30 am
MDW
-
KEF
15h 06m
2 stops
Virgin Atlantic Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
$742Virgin Atlantic
Sun, Apr 19 - Sun, Apr 26
Virgin Atlantic Logo
1:24 pm - 9:30 am
MDW
-
KEF
15h 06m
2 stops
Virgin Atlantic Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
$766Virgin Atlantic
Sun, Apr 19 - Sun, Apr 26
Delta Logo
1:24 pm - 9:30 am
MDW
-
KEF
15h 06m
2 stops
Delta Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
$778Delta
Tue, Apr 14 - Sun, Apr 26
KLM Logo
12:52 pm - 9:30 am
MDW
-
KEF
15h 38m
2 stops
KLM Logo
11:25 am - 10:28 pm
KEF
-
MDW
16h 03m
2 stops
$779KLM
Thu, May 7 - Wed, May 13
Delta Logo
1:59 pm - 7:40 am
MDW
-
KEF
12h 41m
1 stop
Delta Logo
8:50 am - 12:42 pm
KEF
-
MDW
8h 52m
1 stop
$789Delta
Mon, Apr 27 - Sun, May 10
Multiple Airlines Logo
12:52 pm - 9:30 am
MDW
-
KEF
15h 38m
2 stops
Multiple Airlines Logo
8:50 am - 6:33 pm
KEF
-
MDW
14h 43m
1 stop
$793Multiple Airlines
Wed, May 6 - Wed, May 13
Multiple Airlines Logo
6:38 pm - 6:20 am
MDW
-
KEF
30h 42m
1 stop
Multiple Airlines Logo
9:30 am - 5:56 pm
KEF
-
MDW
13h 26m
1 stop
$795Multiple Airlines
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 $418 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 Wednesday and avoid Fridays 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 Fridays.

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 $501 (return) on average. On the other hand, the most expensive months are July and June, where the average cost of round-trip tickets is $749 and $702 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 $679, 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 3 weeks before departure, which saves you about 17% compared to booking last minute. For the absolute cheapest price, our data suggests you should book 14 weeks before departure.

Good to know

Low seasonFebruary
Cheapest flight$298
Best time to beat the crowds with an average 16% drop in price.
Most popular time to fly with an average 15% increase in price.
Flight from Chicago O'Hare Airport to Reykjavik

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 $298 for a one-way ticket and $449 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?

    Iberia, British Airways, Finnair, American Airlines, and Air France offer inflight Wi-Fi service on the Chicago to Reykjavik flight route.

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

    The Boeing 787-9 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 $744 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 $641 and an overall rating of 7.1.

  • 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 $323 or less one-way and $532 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 9405 reviews
6.6Food
7.1Entertainment
8.1Crew
7.3Comfort
7.7Boarding
Airline reviews

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

4.0 OkayDr. Joseph, Feb 2026
ORD - IAH
Read more United Airlines reviews

This trip did not start off well. The inbound flight was delayed about 20 minutes. Then, after initial onboarding, the passengers had to deplane due to a mechanical problem. That took about 30 minutes to fix and be cleared. Then, reboarding was chaotic. It took a long time to sort passengers and two passengers on standby were ticketed but there was no seat. So, they had to deplane. One of the flight crew was trying to help passengers figure out a place to put their carry-on bags and that took more time. In the end, our scheduled 10:30 am departure did not actually take off until about 12:05 pm CST. The flight itself was long but we got to Houston. Some passengers missed their connecting flights and had to rebook. Not the best of flights I've had.

We were delayed for about an hour from taking off due to traffic control procedures at the destination airport. But once in the air, the flight went well. The crew members were great and provided cabin service despite moderate turbulence during much of the flight.

Short flight, but no drink/snack service. The flights both going and coming were delayed.

Not being stranded in Chicago for her airport to 11:30 tomorrow morning the 3rd

I was fully checked in the prior night and i was unchecked and then didn’t have a seat when I boarded. Instead of an aisle seat, I was out in the middle seat of the very last row of the plane.

In overall it was a good experience, the only down point was that the entertainment screen was working properly.

They lost my luggage, so, not happy. The crew was nice but my suitcases never made it, still trying to find out what happened!

I understand weather is an issue, but making us chase our plane down at five scheduled gates across three terminals in an airport the size of O'Hare was unfair. They'd have probably been better off to leave gates as TBD until the inbound plane is in final approach instead of running us all over the place. Also, props to the consistently-unprepared ground crew in Richmond for once again leaving my lane parked short of the gate because they couldn't have a crew in place on time with 2 hours notice...

cabin crew was OK, food was OK, the trip from the US to Munich was actually pretty bad comfort wise. Noisy aircraft, lights never dimmed even in Business class (night flight) barely sufficient amenities for the price. I have millions of miles with United but TBH American is gaining ground and Delta has always been marginally better then United although on paper United has more longes and cheaper upgrades.

Essy to get on. The hostess gave very little pop, the plane was late getting in, and we are still waiting for our bags. This sucks. :/

Iceland Air severely damaged a checked bag. Additionally, the gate agent caused issues for many passengers who had standard-sized onboard bags that would have passed inspection by any other airline.

The staff was kind and helpful. There was no food, and you needed to bring your own earphones to use the entertainment, which I didn’t know.

Delays at check-in, seemed like they were short ground staff at the time and some passengers needed extra processing.

Food - Non-Existent. You pay for everything. It is strictly Pay-to-Play!

The Experience Was Torture Spend a few extra dollars and avoid Icelandair at all costs. There is absolutely no refreshments, no food, no drinks. Only water, coffee, tea are free and at only half a tiny cup. Entertainment is limited selection of films, shows and mostly outdated. The seats are smaller than usual, with no cushion, no pillows, no blankets. First time in my life have I witness an airline asking for donations in spare change for a charity. With all the money Icelandair saves by starving the passenger, they can afford to give this charity on their own.

If there was a disclaimer regarding food service or lack thereof, l missed it. If l had known l would have prepared better. Same with transferring at Reykjavik. No information about disembarking via stairs into rain, slush and puddles deep enough to swallow a foot. After being treated to haute cuisine restaurants and warm inviting environment during the flight, the airport is, let’s be kind, disappointing. Plane was comfortable, Airbus, staff were welcoming enough. I would likely try the route again. Maybe have a night and day in Iceland. Maybe not.

They had a 4 hour delay and left my luggage in Iceland and it didn’t arrive in Portland until 11/1

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.

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

Information on your arrival and departure airports