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$391+ Cheap flights from Keflavik Intl (KEF) to Chicago (CHI)

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 5/25. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — CHI
Jun 12 — Jun 191
Fri 6/12
Fri 6/19
1 adult, Economy
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Cheap flight deals from Keflavik Intl to Chicago

Cheapest flights from Keflavik Intl to Chicago
Explore the most affordable flight options available from Keflavik Intl to Chicago. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 13, 2026.

This Ticket deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/64:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Wed 7/157:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Deal found 5/11$573
This Booking.com deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/94:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Mon 6/1510:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Deal found 5/12$635
This Gotogate deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:45 pm
KEF
-
ORD
Nonstop6h 40m
Icelandair
Wed 7/87:25 pm
ORD
-
KEF
Nonstop6h 15m
Icelandair
Deal found 5/9$640
This Gotogate deal was found by Cheapflights users on 5/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/224:25 pm
KEF
-
ORD
Nonstop6h 50m
Icelandair
Mon 6/2910:25 pm
ORD
-
KEF
Nonstop6h 05m
Icelandair
Deal found 5/8$656
This Ticket deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2711:25 am
KEF
-
MDW
2 stops14h 44m
Virgin Atlantic
Sun 5/311:22 pm
MDW
-
KEF
2 stops15h 08m
Virgin Atlantic
Deal found 5/11$872
This Travelis deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Travelis is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/279:30 am
KEF
-
MDW
1 stop13h 26m
KLM
Sun 5/311:59 pm
MDW
-
KEF
1 stop12h 41m
KLM
Deal found 5/11$887
This KLM deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:30 am
KEF
-
MDW
1 stop13h 26m
KLM
Mon 6/17:13 pm
MDW
-
KEF
1 stop31h 27m
KLM
Deal found 5/12$917
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/289:30 am
KEF
-
MDW
1 stop13h 26m
Delta
Mon 6/11:22 pm
MDW
-
KEF
2 stops15h 08m
Delta
Deal found 5/12$919
This Virgin Atlantic deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/2811:25 am
KEF
-
MDW
2 stops14h 44m
Virgin Atlantic
Mon 6/11:22 pm
MDW
-
KEF
2 stops15h 08m
Virgin Atlantic
Deal found 5/12$926
This Icelandair deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:10 pm
KEF
-
MDW
1 stop11h 55m
Multiple Airlines
Wed 7/154:30 pm
MDW
-
KEF
1 stop9h 05m
Multiple Airlines
Deal found 5/12$956
This KLM deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/99:30 am
KEF
-
MDW
1 stop13h 48m
KLM
Mon 6/157:16 pm
MDW
-
KEF
1 stop30h 44m
KLM
Deal found 5/12$1,002
This Icelandair deal was found by Cheapflights users on 5/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:45 am
KEF
-
MDW
1 stop15h 15m
Multiple Airlines
Wed 7/84:10 pm
MDW
-
KEF
1 stop9h 15m
Multiple Airlines
Deal found 5/9$1,033

Find flight deals from Keflavik Intl to Chicago

Discover tips and strategies to find the most affordable flight options for your journey from Keflavik Intl (KEF) to Chicago (CHI). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 13, 2026.

Most accurate provider

FlightHub
3 stars

Most trusted provider

FlightHub
3 stars

Round-trip from

$573
(Ticket)

One-way from

$391
(Kiwi.com)

Good round-trip deal

$957 or less

Good one-way deal

$566 or less
Provider with most accurate pricing for Reykjavik Keflavik Intl-Chicago (CHI) flight deals.
Search Deals
Provider most trusted by Cheapflights users for Reykjavik Keflavik Intl-Chicago (CHI) flights.
Search Deals
From Reykjavik Keflavik Intl to Chicago (CHI)
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One-way flight from Reykjavik Keflavik Intl to Chicago (CHI)
Search Deals
Price to beat on a round-trip flight from Reykjavik Keflavik Intl to Chicago (CHI).
Search Deals
Price to beat on a one-way flight from Reykjavik Keflavik Intl to Chicago (CHI).
Search Deals

Cheapflights Fare Finder

 
Customize your flight search to find flights from Keflavik Intl to Chicago that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 13, 2026.
Use the filters below to find and compare flights from Reykjavik Keflavik Intl Airport to Chicago that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 6/22

4:25 pm-6:15 pm

Nonstop6h 50m

Chicago O'Hare Intl

Mon 6/29

7:25 pm-6:40 am

Nonstop6h 15m

$659

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 7/6

7:55 pm-10:06 am

1 stop19h 11m

Chicago O'Hare Intl

Wed 7/15

7:25 pm-6:40 am

Nonstop6h 15m

$776
Quickest round-trip

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Sat 6/6

4:25 pm-6:15 pm

Nonstop6h 50m

Chicago O'Hare Intl

Sat 6/6

10:25 pm-9:30 am

Nonstop6h 05m

$861

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 7/6

9:15 am-8:05 pm

1 stop15h 50m

Chicago O'Hare Intl

Wed 7/15

2:08 pm-7:55 am

1 stop12h 47m

$867

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 6/22

10:00 am-2:55 pm

1 stop9h 55m

Chicago O'Hare Intl

Mon 6/29

2:08 pm-7:55 am

1 stop12h 47m

$873

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 6/29

9:00 am-7:50 pm

2 stops39h 50m

Chicago O'Hare Intl

Wed 7/8

5:30 pm-7:40 am

1 stop33h 10m

$885

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 7/6

9:15 am-2:55 pm

1 stop10h 40m

Chicago O'Hare Intl

Wed 7/15

9:35 pm-8:50 am

Nonstop6h 15m

$889

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Fri 6/26

12:00 pm-1:50 pm

Nonstop6h 50m

Chicago O'Hare Intl

Fri 7/3

1:30 pm-7:00 am

1 stop12h 30m

$889

ReykjavikChicago

KEF - ORD

KEFORD

Reykjavik Keflavik Intl

Mon 6/22

9:15 am-7:50 am

1 stop27h 35m

Chicago O'Hare Intl

Mon 6/29

2:00 pm-7:00 am

2 stops12h 00m

$890

ReykjavikChicago

KEF - MDW

KEFMDW

Reykjavik Keflavik Intl

Tue 6/9

9:30 am-6:18 pm

1 stop13h 48m

Chicago Midway

Mon 6/15

1:26 pm-9:30 am

2 stops15h 04m

$917

Flights are sorted by cheapest round-trip flights first.

Deals found on 5/12

Showing 1-10 of 27 resultsSorted by cheapest first
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  • Most accurate provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Chicago flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Reykjavik Keflavik Intl Airport-Chicago flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Reykjavik Keflavik Intl Airport-Chicago flight searches over the past month and is updated monthly.
  • Most trusted provider: When it comes to deals on Reykjavik Keflavik Intl Airport-Chicago flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Reykjavik Keflavik Intl Airport-Chicago flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.

Best time to book a flight from Keflavik Intl to Chicago

Have a flexible travel schedule? Discover the best time to fly to Chicago from Keflavik Intl with our price prediction graph.
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Reykjavik Keflavik Intl Airport to Chicago

What is the cheapest time of day to fly from KEF to CHI?

Find hourly flight availability from Keflavik Intl to Chicago. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 13, 2026.

When flying from Reykjavik Keflavik Intl Airport to Chicago, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Weekly flight availability from Reykjavik Keflavik Intl Airport to Chicago

Explore weekly flight availability from Keflavik Intl to Chicago. Discover flights operating on different days of the week, giving you the flexibility to choose a travel day that best fits your plans. Compare info to find the most convenient option for your journey. Data last updated May 13, 2026.

The most flights from KEF to CHI are scheduled on a Wednesday (7 on average). You will have fewer flight options on Tuesday, which is when the least amount of flights are scheduled (3 on average).

Related info for your journey

Find useful and relevant information for your journey from Keflavik Intl to Chicago. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

  • How long is the flight from Reykjavik Keflavik Intl Airport to Chicago?

    There are many flights that can get you from Reykjavik Keflavik Intl Airport to Chicago in 6h 50m. Fly via Icelandair, Air Canada, or Virgin Atlantic to get the fastest option. The distance between Reykjavik Keflavik Intl Airport and Chicago is about 2934 mi. Both multi-stop and nonstop flights can be found to your destination and back.

  • What are the cheapest flights from Reykjavik Keflavik Intl Airport to Chicago?

    Looking at all options, your cheapest flight can be booked for $553. While the most popular route (Reykjavik Keflavik Intl - Chicago Midway) can be booked for $872 on average, our data indicates $1,034 when flying from Reykjavik Keflavik Intl Airport to Chicago.

  • Can I find deals for flights from Keflavik Intl to Chicago that include hotel bookings?

    Yes. In addition to deals on Keflavik Intl to Chicago flights, Cheapflights offers vacation packages that include both flights and hotel.

  • How can I find direct flights from Keflavik Intl to Chicago?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Keflavik Intl to Chicago.

  • Can I find deals for business class flights from Keflavik Intl to Chicago?

    Yes. Cheapflights offers flight deals from Keflavik Intl to Chicago by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

See more FAQs

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