$390+ 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 9/3. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — CHI
Sep 14 — Sep 211
Round-trip
1 adult, Economy
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Cheapest flights from Keflavik Intl to ChicagoExplore 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 August 15, 2026.
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 August 15, 2026.
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/14:25 pm -
Nonstop6h 50m
Wed 10/710:25 pm -
Nonstop6h 05m
Deal found 8/12![Icelandair logo]()
$595
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/44:25 pm -
Nonstop6h 50m
Sat 10/107:25 pm -
Nonstop6h 15m
Deal found 8/10![Icelandair logo]()
$597
This Travelis deal was found by Cheapflights users on 8/10. 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.
Mon 8/107:45 pm -
Nonstop6h 40m
Fri 8/1410:25 pm -
Nonstop6h 05m
Deal found 8/10![Icelandair logo]()
$606
This Gotogate deal was found by Cheapflights users on 8/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:30 pm -
Nonstop6h 50m
Sat 11/146:30 pm -
Nonstop6h 15m
Deal found 8/11![Icelandair logo]()
$614
This Gotogate deal was found by Cheapflights users on 8/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:45 pm -
Nonstop6h 40m
Fri 10/27:25 pm -
Nonstop6h 15m
Deal found 8/11![Icelandair logo]()
$622
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:45 pm -
Nonstop6h 40m
Wed 9/2310:25 pm -
Nonstop6h 05m
Deal found 8/12![Icelandair logo]()
$630
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/124:25 pm -
Nonstop6h 50m
Sun 8/167:25 pm -
Nonstop6h 15m
Deal found 8/12![Icelandair logo]()
$640
This Gotogate deal was found by Cheapflights users on 8/10. 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.
Thu 9/174:25 pm -
Nonstop6h 50m
Tue 9/227:25 pm -
Nonstop6h 15m
Deal found 8/10![Icelandair logo]()
$642
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:25 pm -
Nonstop6h 50m
Sun 8/2310:25 pm -
Nonstop6h 05m
Deal found 8/13![Icelandair logo]()
$648
This Icelandair deal was found by Cheapflights users on 8/10. 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.
Tue 10/207:50 pm -
1 stop17h 25m
Tue 10/271:15 pm -
2 stops12h 15m
Deal found 8/10![Multiple Airlines logo]()
$817
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Thu 10/17:50 pm -
1 stop16h 25m
Wed 10/73:35 pm -
1 stop10h 00m
Deal found 8/14![Multiple Airlines logo]()
$848
This Icelandair deal was found by Cheapflights users on 8/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:45 pm -
1 stop22h 25m
Sat 11/141:25 pm -
1 stop11h 05m
Deal found 8/11![Multiple Airlines logo]()
$881
Best flights from Keflavik Intl to ChicagoDiscover carefully curated flight deals from Keflavik Intl to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
Discover carefully curated flight deals from Keflavik Intl to Chicago that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 15, 2026.
This Justfly.com deal was found by Cheapflights users on 8/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:05 pm -
1 stop28h 40m
Sat 11/147:15 pm -
2 stops33h 35m
Deal found 8/11![Scandinavian Airlines logo]()
$707
This Gotogate deal was found by Cheapflights users on 8/13. 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.
Sun 9/274:25 pm -
Nonstop6h 50m
Sun 10/410:25 pm -
Nonstop6h 05m
Deal found 8/13![Icelandair logo]()
$750
This Flysmarter deal was found by Cheapflights users on 8/12. 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 Flysmarter is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/15:10 pm -
1 stop20h 38m
Wed 10/710:25 pm -
Nonstop6h 05m
Deal found 8/12![Multiple Airlines logo]()
$803
This lol.travel deal was found by Cheapflights users on 8/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:00 am -
1 stop13h 30m
Wed 10/75:53 pm -
1 stop9h 52m
Deal found 8/13![Air Canada logo]()
$839
This United Airlines deal was found by Cheapflights users on 8/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/112:00 pm -
Nonstop6h 55m
Wed 10/74:33 pm -
1 stop11h 12m
Deal found 8/12![United Airlines logo]()
$886
This Virgin Atlantic deal was found by Cheapflights users on 8/14. 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.
Wed 9/169:30 am -
1 stop13h 49m
Mon 9/289:29 am -
2 stops19h 01m
Deal found 8/14![Virgin Atlantic logo]()
$915
This Delta deal was found by Cheapflights users on 8/10. 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 9/179:30 am -
1 stop13h 49m
Tue 9/221:19 pm -
2 stops15h 11m
Deal found 8/10![Delta logo]()
$918
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:30 pm -
Nonstop6h 50m
Sat 11/142:15 pm -
1 stop9h 50m
Deal found 8/11![Icelandair logo]()
$757
This lastminute.com deal was found by Cheapflights users on 8/13. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:30 am -
1 stop34h 40m
Wed 10/77:15 pm -
2 stops30h 50m
Deal found 8/13![Scandinavian Airlines logo]()
$832
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Thu 10/17:50 pm -
1 stop16h 25m
Wed 10/73:35 pm -
1 stop10h 00m
Deal found 8/14![Multiple Airlines logo]()
$848
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Wed 9/97:45 pm -
Nonstop6h 40m
Fri 9/1110:25 pm -
Nonstop6h 05m
Deal found 8/14![Icelandair logo]()
$819
This Delta deal was found by Cheapflights users on 8/12. 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 10/19:30 am -
1 stop13h 49m
Wed 10/71:27 pm -
2 stops15h 03m
Deal found 8/12![Delta logo]()
$921
This Virgin Atlantic deal was found by Cheapflights users on 8/11. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:25 am -
2 stops16h 19m
Fri 10/22:00 pm -
1 stop12h 00m
Deal found 8/11![Virgin Atlantic logo]()
$937
This Icelandair deal was found by Cheapflights users on 8/11. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/94:45 pm -
1 stop22h 25m
Sat 11/141:25 pm -
1 stop11h 05m
Deal found 8/11![Multiple Airlines logo]()
$881
This Icelandair deal was found by Cheapflights users on 8/10. 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.
Sun 10/45:10 pm -
1 stop11h 55m
Sat 10/103:50 pm -
1 stop9h 45m
Deal found 8/10![Multiple Airlines logo]()
$891
Last-minute flights from Keflavik Intl to ChicagoDiscover last-minute flight deals from Keflavik Intl to Chicago. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Chicago. Data last updated August 15, 2026 and is based on user searches.
This Super.com deal was found by Cheapflights users on 8/13. 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 Super.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/204:25 pm -
Nonstop6h 50m
Sun 8/2310:25 pm -
Nonstop6h 05m
Deal found 8/13![Icelandair logo]()
$648
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Fri 9/47:45 pm -
Nonstop6h 40m
Sun 9/137:25 pm -
Nonstop6h 15m
Deal found 8/14![Icelandair logo]()
$680
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/57:45 pm -
Nonstop6h 40m
Fri 9/117:25 pm -
Nonstop6h 15m
Deal found 8/14![Icelandair logo]()
$676
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/59:00 am -
1 stop12h 40m
Tue 9/155:30 pm -
1 stop33h 10m
Deal found 8/14![WestJet logo]()
$683
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/87:45 pm -
Nonstop6h 40m
Wed 9/1610:25 pm -
Nonstop6h 05m
Deal found 8/14![Icelandair logo]()
$650
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Tue 9/87:45 pm -
Nonstop6h 40m
Sun 9/137:25 pm -
Nonstop6h 15m
Deal found 8/14![Icelandair logo]()
$653
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/94:25 pm -
Nonstop6h 50m
Wed 9/167:25 pm -
Nonstop6h 15m
Deal found 8/14![Icelandair logo]()
$660
This Icelandair deal was found by Cheapflights users on 8/14. 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.
Wed 9/94:25 pm -
Nonstop6h 50m
Sat 9/1210:25 pm -
Nonstop6h 05m
Deal found 8/14![Icelandair logo]()
$663
This Gotogate deal was found by Cheapflights users on 8/12. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/167:45 pm -
Nonstop6h 40m
Wed 9/2310:25 pm -
Nonstop6h 05m
Deal found 8/12![Icelandair logo]()
$630
This Gotogate deal was found by Cheapflights users on 8/14. 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.
Wed 9/167:45 pm -
Nonstop6h 40m
Mon 9/287:25 pm -
Nonstop6h 15m
Deal found 8/14![Icelandair logo]()
$640
This Gotogate deal was found by Cheapflights users on 8/10. 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.
Thu 9/174:25 pm -
Nonstop6h 50m
Tue 9/227:25 pm -
Nonstop6h 15m
Deal found 8/10![Icelandair logo]()
$642
This Gotogate deal was found by Cheapflights users on 8/11. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:45 pm -
Nonstop6h 40m
Fri 10/27:25 pm -
Nonstop6h 15m
Deal found 8/11![Icelandair logo]()
$622
One-way flights from Keflavik Intl to ChicagoSearch for one-way flight options from Keflavik Intl to Chicago. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
Search for one-way flight options from Keflavik Intl to Chicago. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:00 am -
2 stops59h 59m
Deal found 8/12![Multiple Airlines logo]()
$390
This SmartFares deal was found by Cheapflights users on 8/10. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/254:30 pm -
Nonstop6h 50m
Deal found 8/10![Icelandair logo]()
$458
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:00 am -
2 stops40h 08m
Deal found 8/12![Multiple Airlines logo]()
$459
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/19:00 am -
2 stops42h 47m
Deal found 8/12![Multiple Airlines logo]()
$469
This Mytrip deal was found by Cheapflights users on 8/10. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/284:30 pm -
Nonstop6h 50m
Deal found 8/10![Icelandair logo]()
$475
This Mytrip deal was found by Cheapflights users on 8/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:45 pm -
Nonstop6h 40m
Deal found 8/14![Icelandair logo]()
$476
This oojo deal was found by Cheapflights users on 8/14. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:45 pm -
Nonstop6h 40m
Deal found 8/14![Icelandair logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 8/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/29:00 am -
3 stops56h 23m
Deal found 8/11![Multiple Airlines logo]()
$485
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/64:25 pm -
Nonstop6h 50m
Deal found 8/11![Icelandair logo]()
$489
This Gotogate deal was found by Cheapflights users on 8/14. 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.
Thu 8/274:25 pm -
Nonstop6h 50m
Deal found 8/14![Icelandair logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 8/13. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:30 am -
2 stops27h 15m
Deal found 8/13![Multiple Airlines logo]()
$552
This Kiwi.com deal was found by Cheapflights users on 8/14. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/45:00 pm -
2 stops29h 51m
Deal found 8/14![Multiple Airlines logo]()
$572
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $595 (Gotogate) |
One-way from | $390 (Kiwi.com) |
Good round-trip deal | $1,009 or less |
Good one-way deal | $595 or less |
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 August 15, 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
Cheapest round-trip
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Mon 11/9
6:05 pm-4:45 pm
1 stop28h 40m
Chicago O'Hare Intl
Sat 11/14
7:15 pm-10:50 am
2 stops33h 35m
$707
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Sun 9/27
4:25 pm-6:15 pm
Nonstop6h 50m
Chicago O'Hare Intl
Sun 10/4
10:25 pm-9:30 am
Nonstop6h 05m
$750
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Mon 11/9
4:30 pm-5:20 pm
Nonstop6h 50m
Chicago O'Hare Intl
Sat 11/14
2:15 pm-6:05 am
1 stop9h 50m
$757
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Thu 10/1
5:10 pm-8:48 am
1 stop20h 38m
Chicago O'Hare Intl
Wed 10/7
10:25 pm-9:30 am
Nonstop6h 05m
$803
Quickest round-trip
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Wed 9/9
7:45 pm-9:25 pm
Nonstop6h 40m
Chicago O'Hare Intl
Fri 9/11
10:25 pm-9:30 am
Nonstop6h 05m
$819
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Thu 10/1
10:30 am-4:10 pm
1 stop34h 40m
Chicago O'Hare Intl
Wed 10/7
7:15 pm-7:05 am
2 stops30h 50m
$832
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Thu 10/1
10:00 am-6:30 pm
1 stop13h 30m
Chicago O'Hare Intl
Wed 10/7
5:53 pm-8:45 am
1 stop9h 52m
$839
ReykjavikChicago
KEF Reykjavik Keflavik Intl - MDW Chicago Midway
KEFMDW
Reykjavik Keflavik Intl
Thu 10/1
7:50 pm-7:15 am
1 stop16h 25m
Chicago Midway
Wed 10/7
3:35 pm-6:35 am
1 stop10h 00m
$848
ReykjavikChicago
KEF Reykjavik Keflavik Intl - MDW Chicago Midway
KEFMDW
Reykjavik Keflavik Intl
Mon 11/9
4:45 pm-9:10 am
1 stop22h 25m
Chicago Midway
Sat 11/14
1:25 pm-6:30 am
1 stop11h 05m
$881
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Thu 10/1
12:00 pm-1:55 pm
Nonstop6h 55m
Chicago O'Hare Intl
Wed 10/7
4:33 pm-8:45 am
1 stop11h 12m
$886
Showing 1-10 of 34 resultsSorted by cheapest first
- 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.
KEF-CHI
KEF-ORD
KEF-MDW
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
KEF-CHI
KEF-ORD
KEF-MDW
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 August 15, 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 August 15, 2026.
The most flights from KEF to CHI are scheduled on a Tuesday (7 on average). You will have fewer flight options on Monday, which is when the least amount of flights are scheduled (6 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.
Traveling to a place near Chicago?
Book flights to Chicago if you plan to visit one of these locationsBenton Harbor
Lansing
Merrillville
Valparaiso
Hammond
Saint Joseph
Porter
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