$473+ Cheap flights from Keflavik Intl (KEF) to Chicago (CHI)
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/14. Fares are subject to change and may not be available on all flights or dates of travel.
KEF — CHI
Oct 29 — Nov 51
Round-trip
1 adult, Economy
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Find cheap flights from Keflavik Intl to Chicago with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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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 September 29, 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 September 29, 2026.
This Booking.com deal was found by Cheapflights users on 9/26. 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.
Sun 11/224:30 pm -
Nonstop6h 50m
Sat 11/286:30 pm -
Nonstop6h 15m
Deal found 9/26![Icelandair logo]()
$594
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Thu 11/194:30 pm -
Nonstop6h 50m
Wed 11/256:30 pm -
Nonstop6h 15m
Deal found 9/25![Icelandair logo]()
$605
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Mon 11/94:30 pm -
Nonstop6h 50m
Mon 11/166:30 pm -
Nonstop6h 15m
Deal found 9/25![Icelandair logo]()
$613
This Justfly.com deal was found by Cheapflights users on 9/28. 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.
Tue 12/14:30 pm -
Nonstop6h 50m
Mon 4/197:25 pm -
Nonstop6h 15m
Deal found 9/28![Icelandair logo]()
$617
This Flysmarter deal was found by Cheapflights users on 9/26. 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.
Tue 11/104:30 pm -
Nonstop6h 50m
Tue 11/176:30 pm -
Nonstop6h 15m
Deal found 9/26![Icelandair logo]()
$620
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 12/14:30 pm -
Nonstop6h 50m
Sun 4/1810:25 pm -
Nonstop6h 05m
Deal found 9/28![Icelandair logo]()
$626
This Justfly.com deal was found by Cheapflights users on 9/28. 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.
Wed 12/24:30 pm -
Nonstop6h 50m
Mon 4/197:25 pm -
Nonstop6h 15m
Deal found 9/28![Icelandair logo]()
$628
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 12/34:30 pm -
Nonstop6h 50m
Wed 4/2110:25 pm -
Nonstop6h 05m
Deal found 9/28![Icelandair logo]()
$636
This Icelandair deal was found by Cheapflights users on 9/28. 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 12/44:30 pm -
Nonstop6h 50m
Tue 4/207:25 pm -
Nonstop6h 15m
Deal found 9/28![Icelandair logo]()
$639
This Icelandair deal was found by Cheapflights users on 9/28. 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 12/15:00 pm -
1 stop10h 30m
Tue 4/2012:55 pm -
2 stops12h 30m
Deal found 9/28![Multiple Airlines logo]()
$800
This Icelandair deal was found by Cheapflights users on 9/26. 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 11/114:45 pm -
1 stop20h 15m
Wed 11/1812:50 pm -
1 stop11h 40m
Deal found 9/26![Multiple Airlines logo]()
$827
This Icelandair deal was found by Cheapflights users on 9/26. 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 11/105:00 pm -
1 stop22h 00m
Tue 11/1712:50 pm -
1 stop11h 40m
Deal found 9/26![Multiple Airlines logo]()
$864
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 September 29, 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 September 29, 2026.
This Icelandair deal was found by Cheapflights users on 9/28. 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 12/44:30 pm -
Nonstop6h 50m
Sat 4/177:25 pm -
Nonstop6h 15m
Deal found 9/28![Icelandair logo]()
$639
This oojo deal was found by Cheapflights users on 9/26. 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.
Wed 11/1111:35 am -
1 stop35h 10m
Wed 11/187:10 pm -
1 stop16h 10m
Deal found 9/26![Scandinavian Airlines logo]()
$704
This Icelandair deal was found by Cheapflights users on 9/28. 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 12/15:00 pm -
1 stop10h 30m
Tue 4/2012:55 pm -
2 stops12h 30m
Deal found 9/28![Multiple Airlines logo]()
$800
This Booking.com deal was found by Cheapflights users on 9/26. 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.
Wed 11/114:30 pm -
Nonstop6h 50m
Wed 11/186:30 pm -
Nonstop6h 15m
Deal found 9/26![Icelandair logo]()
$665
This FlightHub deal was found by Cheapflights users on 9/26. 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.
Thu 11/196:05 pm -
1 stop28h 40m
Wed 11/257:10 pm -
2 stops34h 00m
Deal found 9/26![Scandinavian Airlines logo]()
$714
This Justfly.com deal was found by Cheapflights users on 9/26. 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.
Sun 11/226:05 pm -
1 stop28h 40m
Sat 11/287:10 pm -
2 stops34h 00m
Deal found 9/26![Scandinavian Airlines logo]()
$714
This Ovago deal was found by Cheapflights users on 9/28. 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 Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/224:30 pm -
Nonstop6h 50m
Sat 11/2810:00 am -
1 stop14h 35m
Deal found 9/28![Multiple Airlines logo]()
$801
This Gotogate deal was found by Cheapflights users on 9/26. 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.
Tue 11/1011:55 am -
2 stops58h 50m
Tue 11/177:10 pm -
2 stops34h 00m
Deal found 9/26![Scandinavian Airlines logo]()
$715
This Icelandair deal was found by Cheapflights users on 9/26. 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 11/114:45 pm -
1 stop20h 15m
Wed 11/1812:50 pm -
1 stop11h 40m
Deal found 9/26![Multiple Airlines logo]()
$827
This Scandinavian Airlines deal was found by Cheapflights users on 9/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:55 am -
2 stops34h 50m
Sun 4/187:15 pm -
1 stop33h 25m
Deal found 9/28![Scandinavian Airlines logo]()
$730
This Icelandair deal was found by Cheapflights users on 9/26. 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 11/105:00 pm -
1 stop22h 00m
Tue 11/1712:50 pm -
1 stop11h 40m
Deal found 9/26![Multiple Airlines logo]()
$864
This Scandinavian Airlines deal was found by Cheapflights users on 9/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/411:55 am -
2 stops34h 50m
Wed 4/217:15 pm -
1 stop33h 25m
Deal found 9/28![Scandinavian Airlines logo]()
$730
This Scandinavian Airlines deal was found by Cheapflights users on 9/28. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/211:55 am -
2 stops34h 50m
Thu 4/227:15 pm -
2 stops41h 30m
Deal found 9/28![Scandinavian Airlines logo]()
$734
This Icelandair deal was found by Cheapflights users on 9/24. 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.
Sat 11/75:00 pm -
1 stop21h 40m
Fri 11/133:10 pm -
1 stop9h 25m
Deal found 9/24![Multiple Airlines logo]()
$902
This Icelandair deal was found by Cheapflights users on 9/24. 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 11/195:00 pm -
1 stop10h 30m
Wed 11/252:25 pm -
1 stop10h 10m
Deal found 9/24![Multiple Airlines logo]()
$912
This Scandinavian Airlines deal was found by Cheapflights users on 9/24. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:05 pm -
2 stops33h 26m
Fri 11/137:10 pm -
2 stops34h 30m
Deal found 9/24![Scandinavian Airlines logo]()
$801
This Icelandair deal was found by Cheapflights users on 9/28. 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 12/255:00 pm -
1 stop10h 25m
Thu 12/3112:50 pm -
1 stop11h 40m
Deal found 9/28![Multiple Airlines logo]()
$974
This Icelandair deal was found by Cheapflights users on 9/26. 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 11/224:55 pm -
1 stop13h 00m
Sat 11/283:10 pm -
1 stop9h 25m
Deal found 9/26![Multiple Airlines logo]()
$993
Last-minute flights from Keflavik Intl to ChicagoDiscover last-minute flight deals from Keflavik Intl to Chicago. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Keflavik Intl to Chicago. Data last updated September 29, 2026 and is based on user searches.
This SmartFares deal was found by Cheapflights users on 9/25. 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.
Tue 10/134:25 pm -
Nonstop6h 50m
Sun 10/1810:25 pm -
Nonstop6h 05m
Deal found 9/25![Icelandair logo]()
$678
This Icelandair deal was found by Cheapflights users on 9/25. 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 10/134:25 pm -
Nonstop6h 50m
Sat 10/179:38 am -
1 stop15h 27m
Deal found 9/25![Icelandair logo]()
$842
This Scandinavian Airlines deal was found by Cheapflights users on 9/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1311:15 am -
2 stops33h 55m
Sun 10/187:15 pm -
2 stops34h 10m
Deal found 9/25![Scandinavian Airlines logo]()
$874
This KLM deal was found by Cheapflights users on 9/25. 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 10/1311:25 am -
2 stops33h 49m
Sun 10/1810:59 am -
2 stops17h 31m
Deal found 9/25![KLM logo]()
$1,385
This KLM deal was found by Cheapflights users on 9/25. 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 10/1311:25 am -
2 stops33h 49m
Sat 10/1711:33 am -
2 stops16h 57m
Deal found 9/25![KLM logo]()
$1,573
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 10/144:25 pm -
Nonstop6h 50m
Sun 10/1810:25 pm -
Nonstop6h 05m
Deal found 9/25![Icelandair logo]()
$665
This Icelandair deal was found by Cheapflights users on 9/25. 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 10/147:45 pm -
Nonstop6h 40m
Sat 10/179:38 am -
1 stop15h 27m
Deal found 9/25![Icelandair logo]()
$809
This Scandinavian Airlines deal was found by Cheapflights users on 9/25. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/145:35 pm -
1 stop27h 35m
Sat 10/177:15 pm -
1 stop16h 30m
Deal found 9/25![Scandinavian Airlines logo]()
$828
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 10/148:00 pm -
1 stop20h 00m
Sat 10/1711:45 am -
1 stop13h 35m
Deal found 9/25![Multiple Airlines logo]()
$1,504
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 10/148:00 pm -
1 stop20h 00m
Sun 10/1811:45 am -
1 stop13h 35m
Deal found 9/25![Multiple Airlines logo]()
$1,537
This FlightHub deal was found by Cheapflights users on 9/26. 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 10/2611:55 am -
2 stops34h 50m
Mon 11/27:10 pm -
2 stops34h 00m
Deal found 9/26![Scandinavian Airlines logo]()
$730
This Icelandair deal was found by Cheapflights users on 9/26. 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 10/264:45 pm -
1 stop20h 15m
Mon 11/212:45 pm -
1 stop11h 55m
Deal found 9/26![Multiple Airlines logo]()
$1,049
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 September 29, 2026.
Search for one-way flight options from Keflavik Intl to Chicago. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 11/149:05 pm -
3 stops47h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$473
This Booking.com deal was found by Cheapflights users on 9/25. 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.
Mon 11/234:30 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Icelandair logo]()
$474
This oojo deal was found by Cheapflights users on 9/28. 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.
Wed 10/214:25 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Icelandair logo]()
$481
This Mytrip deal was found by Cheapflights users on 9/27. 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.
Sat 11/144:30 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Icelandair logo]()
$486
This Mytrip deal was found by Cheapflights users on 9/28. 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 1/148:45 pm -
2 stops26h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$488
This Mytrip deal was found by Cheapflights users on 9/24. 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.
Mon 11/164:30 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Icelandair logo]()
$490
This Kiwi.com deal was found by Cheapflights users on 9/25. 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 12/59:05 pm -
3 stops51h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![Multiple Airlines logo]()
$493
This FlightHub deal was found by Cheapflights users on 9/28. 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.
Fri 1/154:30 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Icelandair logo]()
$498
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 1/124:30 pm -
Nonstop6h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Icelandair logo]()
$502
This Kiwi.com deal was found by Cheapflights users on 9/28. 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 1/1412:55 am -
2 stops45h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Multiple Airlines logo]()
$512
This Kiwi.com deal was found by Cheapflights users on 9/27. 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 11/146:05 pm -
3 stops53h 42m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![Multiple Airlines logo]()
$591
This Kiwi.com deal was found by Cheapflights users on 9/24. 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.
Mon 11/1612:05 pm -
3 stops34h 13m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$594
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 September 29, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $594 (Booking.com) |
One-way from | $473 (Kiwi.com) |
Good round-trip deal | $734 or less |
Good one-way deal | $671 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 7,457,451 searches. Data last updated September 29, 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
Thu 1/14
12:55 am-4:45 pm
2 stops45h 50m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$512
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Sat 11/14
9:05 pm-2:10 pm
2 stops47h 05m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$537
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Mon 11/16
11:55 am-2:55 pm
3 stops33h 00m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$550
Quickest round-trip
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Wed 10/28
4:30 pm-6:20 pm
Nonstop6h 50m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$574
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Mon 11/16
10:00 am-10:30 pm
2 stops18h 30m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$579
ReykjavikChicago
KEF Reykjavik Keflavik Intl - MDW Chicago Midway
KEFMDW
Reykjavik Keflavik Intl
Mon 11/16
12:05 pm-4:18 pm
3 stops34h 13m
Chicago Midway
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$594
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Tue 1/12
8:30 am-7:15 pm
2 stops40h 45m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$599
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Wed 10/7
5:00 pm-9:21 am
2 stops21h 21m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$610
ReykjavikChicago
KEF Reykjavik Keflavik Intl - MDW Chicago Midway
KEFMDW
Reykjavik Keflavik Intl
Tue 1/12
5:00 pm-11:46 pm
2 stops36h 46m
Chicago Midway
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$622
ReykjavikChicago
KEF Reykjavik Keflavik Intl - ORD Chicago O'Hare Intl
KEFORD
Reykjavik Keflavik Intl
Mon 1/25
11:55 am-3:30 pm
3 stops57h 35m
Chicago O'Hare Intl
Wed 12/31
12:00 am-6:00 am
Nonstop0h 00m
$623
Showing 1-10 of 38 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 September 29, 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.
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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