CHI - KEF

$332 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 7/25. 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
$572
Typical prices: $776-$591
Icelandair
Sun 5/3Mon 5/11
ORD - KEF • Non-stop
Cheapest one-way
$332
Typical prices: $516-$685
WestJet
Sat 7/25
ORD - KEF • 1 stop
Top airlines
Cheapest • from $572 (round-trip)
Best reviews • 7.4 score
Airline reviews
Airline reviews
+1
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Airline reviews
Airline reviews
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Nonstop flights
You can fly direct with Icelandair and United Airlines. Average duration is 6h 11m
Direct flights
Direct flights
+1
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Direct flights
Direct flights
+1
Top routes
Cheapest
Most popular
Insights
Insights
Insights
Insights
When to book
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
Cheapest • 24% price drop
Most popular
Good to know
Good to know
+1
+1
Good to know
Good to know
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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, May 3 - Mon, May 11
Icelandair Logo
10:25 pm - 9:30 am
ORD
-
KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$572Icelandair
Sun, May 3 - Sat, May 16
Icelandair Logo
10:25 pm - 9:30 am
ORD
-
KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$588Icelandair
Mon, Sep 21 - Wed, Sep 30
Icelandair Logo
7:25 pm - 6:40 am
ORD
-
KEF
6h 15mnonstop
Icelandair Logo
7:45 pm - 9:25 pm
KEF
-
ORD
6h 40mnonstop
$602Icelandair
Sun, May 3 - Sat, May 16
Icelandair Logo
10:25 pm - 9:30 am
ORD
-
KEF
6h 05mnonstop
Icelandair Logo
4:25 pm - 6:15 pm
KEF
-
ORD
6h 50mnonstop
$628Icelandair
Wed, Jun 3 - Mon, Jun 8
Multiple Airlines Logo
1:49 pm - 8:45 am
ORD
-
KEF
13h 56m
2 stops
Multiple Airlines Logo
10:00 am - 3:03 pm
KEF
-
ORD
34h 03m
3 stops
$645Multiple Airlines
Sun, Aug 2 - Fri, Aug 21
Delta Logo
9:20 am - 7:40 am
MDW
-
KEF
17h 20m
1 stop
Delta Logo
8:45 am - 12:30 pm
KEF
-
MDW
8h 45m
1 stop
$766Delta
Tue, Sep 8 - Tue, Sep 15
KLM Logo
2:00 pm - 7:00 am
MDW
-
KEF
12h 00m
1 stop
KLM Logo
9:30 am - 6:05 pm
KEF
-
MDW
13h 35m
1 stop
$805KLM
Tue, Sep 8 - Tue, Sep 15
Virgin Atlantic Logo
6:00 am - 9:30 am
MDW
-
KEF
22h 30m
2 stops
Virgin Atlantic Logo
11:25 am - 9:46 pm
KEF
-
MDW
15h 21m
2 stops
$809Virgin Atlantic
Tue, Sep 22 - Thu, Oct 1
Delta Logo
9:20 am - 7:00 am
MDW
-
KEF
16h 40m
1 stop
Delta Logo
9:30 am - 6:31 pm
KEF
-
MDW
14h 01m
2 stops
$812Delta
Fri, Oct 2 - Sat, Oct 10
Multiple Airlines Logo
4:45 pm - 6:35 am
MDW
-
KEF
8h 50m
1 stop
Multiple Airlines Logo
4:45 pm - 6:55 am
KEF
-
MDW
19h 10m
1 stop
$839Multiple 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.

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

This analysis is based on the cheapest round-trip price found on KAYAK in the last 12 months by searching for a flight from Chicago to Reykjavik Keflavik Intl Airport departing in May.

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 $477 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 Mondays 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 $455 (return) on average. On the other hand, the most expensive months are July and May, where the average cost of round-trip tickets is $752 and $746 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 $754, 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$332
Best time to beat the crowds with an average 14% drop in price.
Most popular time to fly with an average 10% 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 $332 for a one-way ticket and $572 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, and Lufthansa.

  • 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 $741 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 $640 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 $375 or less one-way and $680 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 9644 reviews
7.7Boarding
6.6Food
7.1Entertainment
7.3Comfort
8.1Crew
Airline reviews

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

8.0 ExcellentSally, Apr 2026
ORD - SNA
Read more United Airlines reviews

The crew was great. Very friendly and responsive. The plane was old, small and tight. We ran out of overhead space and I had to check. Middle seat was particularly tight.

Several missed and almost missed connections. It felt like everything was being patched together last minute without enough resources and it ended up being an extremely stressful experience that basically ruined our weekend on the west coast. What a waste.

Crew was friendly. Seats are too narrow, particularly when a big person is in the adjacent seat, but I understand this is due to smaller planes usually flight into Lincoln. I have experienced several flight delays going out and coming into Lincoln airport, I say maybe 50% or higher of the flights I've taken out of this airport have been delayed.

Great flight. Boarded efficiently. Arrived early at CLT. There was no in flight entertainment on this aircraft. Great crew.

The seat was comfortable. There was a lot of turbulence. If it weren't for that,it would have been okay.

Poor communication, flight was delayed for preventable reasons. I missed my connection.

The boarding timing needs to be improved. The flight was delayed again because it took way too long to board. I was already exhausted from sleeping at the airport and spending all day there due to delay from my previous flight that connected in Chicago.

Great until we got to FRA. The next trip leg we were put in Business Class where seats had minimal padding!!!! They were awful and United Airlines needs to have their Lufthansa partner up their game or I won’t fly with them again!!

No meal service to the back of the plane as it started late or was too slow to get it out before it was time to land.

Terrible, if possible won't be flying again anytime soon!

Second time with Saga Premium, everything was fab, but the entertainment centre on both my flights didn't work, plus the seat on the NY to Rek flight (Airbus) was so solid and so uncomfortable. The 737Max flight's seat was much, much better.

I’m considering never flying with Iceland Air again. The seats in economy are torture. Now you only get water, coffee and tea for free- really? No food, not a single peanut. The passport line was insane, everyone was worried about catching their connecting flight. This was the third time I’ve barely made my connection, had to run. It can’t be that my choice is to use the bathroom (during the 50 minutes between flights) or make my flight. SO stressful! Ugh.

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

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

Information on your arrival and departure airports