$361+ Cheap flights from Chicago (CHI) to Keflavik Intl (KEF)
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 7/7. Fares are subject to change and may not be available on all flights or dates of travel.
CHI — KEF
Jun 11 — Jun 181
Round-trip
1 adult, Economy
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Find cheap flights from Chicago to Keflavik Intl 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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Chicago to Reykjavik Keflavik Intl are usually found in January or February, booked 44 days in advance, depart on a Wednesday or Thursday and return on a Wednesday
Cheap flight deals from Chicago to Keflavik Intl
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Best
Last-minute
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Cheapest flights from Chicago to Keflavik IntlExplore the most affordable flight options available from Chicago to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
Explore the most affordable flight options available from Chicago to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 12, 2026.
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/107:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sun 10/184:25 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/9![Icelandair logo]()
$573
This Mytrip deal was found by Cheapflights users on 5/7. 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 10/1110:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Sun 10/184:25 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/7![Icelandair logo]()
$575
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/27:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Fri 10/97:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/12![Icelandair logo]()
$581
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/37:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sun 10/117:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/8![Icelandair logo]()
$582
This Justfly.com 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sun 10/254:30 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/9![Icelandair logo]()
$588
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Fri 9/117:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/11![Icelandair logo]()
$589
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sat 10/314:30 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/12![Icelandair logo]()
$591
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Fri 10/234:25 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/8![Icelandair logo]()
$595
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.
Wed 10/77:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sun 10/117:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/12![Icelandair logo]()
$596
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/610:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Sun 9/207:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/11![Icelandair logo]()
$597
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/106:30 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Thu 12/174:30 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/12![Icelandair logo]()
$598
This Icelandair deal was found by Cheapflights users on 5/10. 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 9/297:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Sun 10/187:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/10![Icelandair logo]()
$599
Best flights from Chicago to Keflavik IntlDiscover carefully curated flight deals from Chicago to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
Discover carefully curated flight deals from Chicago to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 12, 2026.
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Wed 9/21:00 pm
ORD
- KEF
2 stops13h 55m
United Airlines
Tue 9/810:00 am
KEF
- ORD
2 stops30h 43m
United Airlines
Deal found 5/7![United Airlines logo]()
$793
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:15 pm
ORD
- KEF
2 stops33h 30m
Scandinavian Airlines
Mon 11/911:35 am
KEF
- ORD
2 stops35h 10m
Scandinavian Airlines
Deal found 5/9![Scandinavian Airlines logo]()
$811
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:58 pm
MDW
- KEF
1 stop7h 42m
Delta
Wed 7/299:30 am
KEF
- MDW
1 stop13h 48m
Delta
Deal found 5/8![Delta logo]()
$900
This Icelandair deal was found by Cheapflights users on 5/7. 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 9/144:00 pm
MDW
- KEF
1 stop9h 35m
Multiple Airlines
Wed 9/305:10 pm
KEF
- MDW
1 stop18h 50m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$902
This Virgin Atlantic deal was found by Cheapflights users on 5/7. 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 7/241:18 pm
MDW
- KEF
2 stops15h 12m
Virgin Atlantic
Fri 7/318:45 am
KEF
- MDW
1 stop14h 40m
Virgin Atlantic
Deal found 5/7![Virgin Atlantic logo]()
$1,054
This KLM deal was found by Cheapflights users on 5/7. 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.
Wed 8/261:52 pm
MDW
- KEF
1 stop12h 08m
KLM
Tue 9/89:30 am
KEF
- MDW
1 stop13h 35m
KLM
Deal found 5/7![KLM logo]()
$1,134
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:35 pm
ORD
- KEF
1 stop10h 10m
United Airlines
Tue 10/1310:00 am
KEF
- ORD
2 stops30h 43m
United Airlines
Deal found 5/11![United Airlines logo]()
$830
This Scandinavian Airlines 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:15 pm
ORD
- KEF
2 stops17h 05m
Scandinavian Airlines
Fri 8/217:55 am
KEF
- ORD
2 stops18h 57m
Scandinavian Airlines
Deal found 5/9![Scandinavian Airlines logo]()
$874
This Delta deal was found by Cheapflights users on 5/10. 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.
Wed 7/221:49 pm
MDW
- KEF
2 stops12h 51m
Delta
Tue 8/48:45 am
KEF
- MDW
2 stops14h 16m
Delta
Deal found 5/10![Delta logo]()
$904
This United Airlines deal was found by Cheapflights users on 5/7. 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.
Mon 9/146:00 am
ORD
- KEF
1 stop20h 00m
United Airlines
Mon 9/2110:00 am
KEF
- ORD
1 stop27h 00m
United Airlines
Deal found 5/7![United Airlines logo]()
$850
This Icelandair deal was found by Cheapflights users on 5/10. 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.
Fri 9/114:00 pm
MDW
- KEF
1 stop9h 35m
Multiple Airlines
Sat 9/194:45 pm
KEF
- MDW
1 stop18h 45m
Multiple Airlines
Deal found 5/10![Multiple Airlines logo]()
$1,046
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/203:40 pm
ORD
- KEF
1 stop11h 15m
United Airlines
Tue 7/2812:00 pm
KEF
- ORD
Nonstop6h 50m
United Airlines
Deal found 5/11![United Airlines logo]()
$888
This Virgin Atlantic 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/311:49 pm
MDW
- KEF
2 stops14h 41m
Virgin Atlantic
Tue 8/48:45 am
KEF
- MDW
2 stops18h 51m
Virgin Atlantic
Deal found 5/8![Virgin Atlantic logo]()
$1,075
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:52 pm
MDW
- KEF
1 stop12h 08m
Delta
Fri 8/2811:25 am
KEF
- MDW
2 stops16h 11m
Delta
Deal found 5/11![Delta logo]()
$1,034
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/292:05 pm
MDW
- KEF
1 stop10h 55m
Multiple Airlines
Sat 9/510:45 am
KEF
- MDW
1 stop15h 00m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$1,083
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:30 am
ORD
- KEF
1 stop21h 00m
United Airlines
Tue 6/210:00 am
KEF
- ORD
2 stops26h 45m
United Airlines
Deal found 5/11![United Airlines logo]()
$936
This Delta deal was found by Cheapflights users on 5/10. 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 9/171:00 pm
MDW
- KEF
2 stops15h 30m
Delta
Sat 9/269:30 am
KEF
- MDW
2 stops14h 01m
Delta
Deal found 5/10![Delta logo]()
$1,049
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/246:30 am
ORD
- KEF
1 stop21h 00m
United Airlines
Thu 7/29:15 am
KEF
- ORD
1 stop30h 01m
United Airlines
Deal found 5/8![United Airlines logo]()
$946
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/1412:46 pm
MDW
- KEF
2 stops13h 54m
Delta
Mon 8/2411:25 am
KEF
- MDW
2 stops16h 11m
Delta
Deal found 5/8![Delta logo]()
$1,130
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:40 pm
ORD
- KEF
1 stop11h 15m
United Airlines
Thu 7/1612:00 pm
KEF
- ORD
Nonstop6h 50m
United Airlines
Deal found 5/11![United Airlines logo]()
$948
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/79:35 pm
ORD
- KEF
Nonstop6h 15m
United Airlines
Sun 6/149:15 am
KEF
- ORD
1 stop15h 50m
United Airlines
Deal found 5/8![United Airlines logo]()
$948
This United Airlines deal was found by Cheapflights users on 5/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/171:20 pm
ORD
- KEF
1 stop12h 40m
United Airlines
Sat 9/2610:00 am
KEF
- ORD
1 stop10h 48m
United Airlines
Deal found 5/10![United Airlines logo]()
$952
Last-minute flights from Chicago to Keflavik IntlDiscover last-minute flight deals from Chicago to Keflavik Intl. Data last updated May 12, 2026 and is based on user searches.
Discover last-minute flight deals from Chicago to Keflavik Intl. Data last updated May 12, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/10. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/248:30 pm
ORD
- KEF
1 stop30h 40m
Icelandair
Fri 5/295:00 pm
KEF
- ORD
1 stop21h 54m
Icelandair
Deal found 5/10![Icelandair logo]()
$710
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/2610:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Tue 6/27:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/12![Icelandair logo]()
$684
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Wed 6/37:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/8![Icelandair logo]()
$639
This Icelandair 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Tue 6/27:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/8![Icelandair logo]()
$649
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Mon 6/17:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/8![Icelandair logo]()
$678
This FlightHub deal was found by Cheapflights users on 5/7. 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.
Sat 5/3010:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Tue 6/94:25 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/7![Icelandair logo]()
$733
This KLM deal was found by Cheapflights users on 5/7. 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.
Sun 5/311:59 pm
MDW
- KEF
1 stop12h 41m
Multiple Airlines
Tue 6/99:30 am
KEF
- MDW
2 stops14h 01m
Multiple Airlines
Deal found 5/7![Multiple Airlines logo]()
$945
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.
Tue 6/27:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Wed 9/167:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/9![Icelandair logo]()
$709
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.
Tue 6/27:25 pm
ORD
- KEF
Nonstop6h 15m
Icelandair
Tue 6/94:25 pm
KEF
- ORD
Nonstop6h 50m
Icelandair
Deal found 5/9![Icelandair logo]()
$720
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/29:23 am
MDW
- KEF
1 stop17h 17m
KLM
Tue 6/99:30 am
KEF
- MDW
1 stop13h 48m
KLM
Deal found 5/8![KLM logo]()
$950
This KLM 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/21:59 pm
MDW
- KEF
1 stop12h 41m
Multiple Airlines
Tue 6/99:30 am
KEF
- MDW
2 stops14h 01m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$954
This Ticket deal was found by Cheapflights users on 5/10. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/2910:25 pm
ORD
- KEF
Nonstop6h 05m
Icelandair
Fri 7/107:45 pm
KEF
- ORD
Nonstop6h 40m
Icelandair
Deal found 5/10![Icelandair logo]()
$707
One-way flights from Chicago to Keflavik IntlSearch for one-way flight options from Chicago to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
Search for one-way flight options from Chicago to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated May 12, 2026.
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/75:30 pm
ORD
- KEF
1 stop33h 10m
WestJet
Deal found 5/11![WestJet logo]()
$361
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/87:05 am
ORD
- KEF
2 stops43h 35m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$367
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:30 pm
ORD
- KEF
1 stop33h 10m
WestJet
Deal found 5/8![WestJet logo]()
$368
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/67:05 am
ORD
- KEF
2 stops43h 35m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$378
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/712:11 pm
MDW
- KEF
2 stops38h 29m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$381
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/16:24 pm
ORD
- KEF
3 stops56h 16m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$394
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:30 pm
ORD
- KEF
1 stop33h 10m
WestJet
Deal found 5/11![WestJet logo]()
$397
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/36:19 pm
ORD
- KEF
3 stops56h 21m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$405
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:04 pm
MDW
- KEF
2 stops38h 36m
Multiple Airlines
Deal found 5/8![Multiple Airlines logo]()
$407
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:46 pm
ORD
- KEF
2 stops56h 54m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$424
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/411:59 am
MDW
- KEF
3 stops38h 41m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$452
This Kiwi.com 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/612:11 pm
MDW
- KEF
2 stops38h 29m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$454
Find flight deals from Chicago to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Chicago (CHI) to Keflavik Intl (KEF). 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 12, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $573 (Mytrip) |
One-way from | $361 (Kiwi.com) |
Popular in | May |
Cheapest in | January |
Average price | $746 |
Good round-trip deal | $726 or less |
Good one-way deal | $436 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Chicago to Keflavik Intl 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 12, 2026.
Use the filters below to find and compare flights from Chicago to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Wed 9/2
1:00 pm-7:55 am
2 stops13h 55m
Reykjavik Keflavik Intl
Tue 9/8
10:00 am-11:43 am
2 stops30h 43m
$793
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Mon 11/2
7:15 pm-10:45 am
2 stops33h 30m
Reykjavik Keflavik Intl
Mon 11/9
11:35 am-4:45 pm
2 stops35h 10m
$811
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Fri 10/9
5:35 pm-8:45 am
1 stop10h 10m
Reykjavik Keflavik Intl
Tue 10/13
10:00 am-11:43 am
2 stops30h 43m
$830
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Mon 9/14
6:00 am-7:00 am
1 stop20h 00m
Reykjavik Keflavik Intl
Mon 9/21
10:00 am-8:00 am
1 stop27h 00m
$850
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Mon 8/17
7:15 pm-5:20 pm
2 stops17h 05m
Reykjavik Keflavik Intl
Fri 8/21
7:55 am-9:52 pm
2 stops18h 57m
$874
Quickest round-trip
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Mon 7/20
3:40 pm-7:55 am
1 stop11h 15m
Reykjavik Keflavik Intl
Tue 7/28
12:00 pm-1:50 pm
Nonstop6h 50m
$888
ChicagoReykjavik
MDW - KEF
MDWKEF
Chicago Midway
Wed 7/22
6:58 pm-7:40 am
1 stop7h 42m
Reykjavik Keflavik Intl
Wed 7/29
9:30 am-6:18 pm
1 stop13h 48m
$900
ChicagoReykjavik
MDW - KEF
MDWKEF
Chicago Midway
Mon 9/14
4:00 pm-6:35 am
1 stop9h 35m
Reykjavik Keflavik Intl
Wed 9/30
5:10 pm-7:00 am
1 stop18h 50m
$902
ChicagoReykjavik
MDW - KEF
MDWKEF
Chicago Midway
Wed 7/22
1:49 pm-7:40 am
2 stops12h 51m
Reykjavik Keflavik Intl
Tue 8/4
8:45 am-6:01 pm
2 stops14h 16m
$904
ChicagoReykjavik
ORD - KEF
ORDKEF
Chicago O'Hare Intl
Wed 5/27
6:30 am-8:30 am
1 stop21h 00m
Reykjavik Keflavik Intl
Tue 6/2
10:00 am-7:45 am
2 stops26h 45m
$936
Showing 1-10 of 38 resultsSorted by cheapest first
Compare providers for flights from Chicago to Keflavik Intl
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Chicago to Keflavik Intl in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars |
- Most accurate provider: When it comes to deals on Chicago-Reykjavik Keflavik Intl Airport flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Chicago-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago-Reykjavik Keflavik Intl Airport 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 Chicago-Reykjavik Keflavik Intl Airport 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 Chicago to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Chicago with our price prediction graph.
CHI-KEF
ORD-KEF
MDW-KEF
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 Chicago to Reykjavik Keflavik Intl Airport
CHI-KEF
ORD-KEF
MDW-KEF
How far ahead should I book a flight from Chicago to Reykjavik Keflavik Intl Airport?
The best time to book flights from Chicago to Reykjavik Keflavik Intl Airport is 18 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Chicago to Reykjavik Keflavik Intl Airport?
Currently, September is the cheapest month in which you can book a flight from Chicago to Reykjavik Keflavik Intl Airport (average of $132). Flying from Chicago to Reykjavik Keflavik Intl Airport in July is currently the most expensive (average of $539). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
What is the cheapest time of day to fly from CHI to KEF?
Find hourly flight availability from Chicago to Keflavik Intl. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated May 12, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago to Reykjavik Keflavik Intl Airport as you normally would.
Weekly flight availability from Chicago to Reykjavik Keflavik Intl Airport
Explore weekly flight availability from Chicago to Keflavik Intl. 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 12, 2026.
The most flights from CHI to KEF are scheduled on a Monday (6 on average). You will have fewer flight options on Thursday, which is when the least amount of flights are scheduled (5 on average).
How much does it cost to fly round-trip from Chicago to Reykjavik Keflavik Intl Airport?
Reviews of airlines servicing Keflavik Intl
Get insights into the airlines that provide service to Keflavik Intl. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Keflavik Intl. Reviews last updated May 12, 2026.
Get a feel of what it's like to fly with United Airlines and Icelandair from Chicago to Reykjavik Keflavik Intl Airport by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
6.6
Boarding
7.7
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Food
6.6
Boarding
7.7
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Food
6.6
Boarding
7.7
Crew
8.1
Entertainment
7.1
Overall
7.4
Comfort
7.3
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
DFW - EWR
Related info for your journey
Find useful and relevant information for your journey from Chicago to Keflavik Intl. 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 Reykjavik Keflavik Intl Airport?
Book flights to Reykjavik Keflavik Intl Airport if you plan to visit one of these locationsKeflavik
Hveragerdi
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Other flights to Keflavik Intl
Explore flights to Keflavik Intl departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on May 12, 2026.
Chicago and Keflavik Intl flights
Browse other Chicago and Keflavik Intl flight options. Last updated on May 12, 2026.
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Top 2 airlines flying from Chicago to Keflavik Intl
Discover the top 2 airlines that operate flights from Chicago to Keflavik Intl. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$348 | Average$619 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$613 | Average$723 | FlexibilityNo cancel fee | On-time69% |