$372+ Cheap flights from O'Hare Intl (ORD) to Keflavik Intl (KEF)
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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ORD — KEF
Oct 8 — Oct 151
Round-trip
1 adult, Economy
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Find cheap flights from O'Hare Intl 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 O'Hare Intl to Reykjavik Keflavik Intl are usually found in April or January, booked 58 days in advance, depart on a Wednesday or Tuesday and return on a Friday
Cheap flight deals from O'Hare Intl to Keflavik Intl
Cheapest
Best
Last-minute
One-way
Cheapest flights from O'Hare Intl to Keflavik IntlExplore the most affordable flight options available from O'Hare Intl to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
Explore the most affordable flight options available from O'Hare Intl to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 8, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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.
Mon 10/57:25 pm -
Nonstop6h 15m
Wed 10/147:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$444
This Cheapflightsfares deal was found by Cheapflights users on 9/3. 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 12/166:30 pm -
Nonstop6h 15m
Sun 12/204:30 pm -
Nonstop6h 50m
Deal found 9/3![Icelandair logo]()
$449
This FlightHub deal was found by Cheapflights users on 9/4. 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.
Sun 9/2710:25 pm -
Nonstop6h 05m
Sat 10/244:25 pm -
Nonstop6h 50m
Deal found 9/4![Icelandair logo]()
$456
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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 9/910:25 pm -
Nonstop6h 05m
Wed 9/167:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$457
This Trip.com deal was found by Cheapflights users on 9/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:25 pm -
Nonstop6h 05m
Sun 10/187:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$460
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
Nonstop6h 05m
Sun 10/187:45 pm -
Nonstop6h 40m
Deal found 9/3![Icelandair logo]()
$467
This Icelandair deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
Nonstop6h 05m
Thu 10/224:25 pm -
Nonstop6h 50m
Deal found 9/3![Icelandair logo]()
$468
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 12/166:30 pm -
Nonstop6h 15m
Thu 12/314:30 pm -
Nonstop6h 50m
Deal found 9/3![Icelandair logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/312:56 pm -
1 stop15h 14m
Sat 10/107:50 pm -
1 stop20h 31m
Deal found 9/5![Multiple Airlines logo]()
$480
This Icelandair deal was found by Cheapflights users on 9/7. 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.
Sat 9/1210:25 pm -
Nonstop6h 05m
Wed 9/307:45 pm -
Nonstop6h 40m
Deal found 9/7![Icelandair logo]()
$481
Best flights from O'Hare Intl to Keflavik IntlDiscover carefully curated flight deals from O'Hare Intl to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
Discover carefully curated flight deals from O'Hare Intl to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 8, 2026.
This Icelandair deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
Nonstop6h 05m
Fri 10/234:25 pm -
Nonstop6h 50m
Deal found 9/3![Icelandair logo]()
$468
This United Airlines deal was found by Cheapflights users on 9/3. 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 10/239:35 pm -
Nonstop6h 15m
Mon 11/212:00 pm -
Nonstop6h 55m
Deal found 9/3![United Airlines logo]()
$517
This United deal was found by Cheapflights users on 9/4. 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 is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 pm -
1 stop14h 20m
Sun 11/293:20 pm -
1 stop34h 45m
Deal found 9/4![Multiple Airlines logo]()
$732
This Delta deal was found by Cheapflights users on 9/3. 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.
Sun 10/119:51 am -
2 stops18h 39m
Mon 10/1911:25 am -
1 stop27h 02m
Deal found 9/3![Delta logo]()
$763
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:15 pm -
2 stops35h 25m
Mon 11/211:55 am -
2 stops34h 50m
Deal found 9/7![Scandinavian Airlines logo]()
$805
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/1812:59 pm -
1 stop14h 46m
Thu 10/2212:00 pm -
Nonstop6h 55m
Deal found 9/4![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 9/5. 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 9/259:35 pm -
2 stops29h 20m
Thu 10/1512:00 pm -
Nonstop6h 55m
Deal found 9/5![United Airlines logo]()
$525
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 9/1810:50 am -
1 stop16h 40m
Thu 9/2412:00 pm -
Nonstop6h 55m
Deal found 9/7![United Airlines logo]()
$535
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/49:35 pm -
Nonstop6h 15m
Fri 10/99:15 am -
2 stops34h 27m
Deal found 9/4![United Airlines logo]()
$536
This United Airlines deal was found by Cheapflights users on 9/7. 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.
Fri 9/1812:55 pm -
2 stops13h 05m
Mon 9/2110:00 am -
2 stops15h 08m
Deal found 9/7![United Airlines logo]()
$558
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/187:15 pm -
2 stops34h 10m
Sun 10/2512:25 pm -
2 stops34h 20m
Deal found 9/7![Scandinavian Airlines logo]()
$851
This Scandinavian Airlines deal was found by Cheapflights users on 9/7. 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 Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/127:15 pm -
2 stops34h 25m
Mon 2/156:05 pm -
2 stops33h 59m
Deal found 9/7![Scandinavian Airlines logo]()
$861
Last-minute flights from O'Hare Intl to Keflavik IntlDiscover last-minute flight deals from O'Hare Intl to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
Discover last-minute flight deals from O'Hare Intl to Keflavik Intl. Data last updated September 8, 2026 and is based on user searches.
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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 9/910:25 pm -
Nonstop6h 05m
Wed 9/167:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$457
This Icelandair deal was found by Cheapflights users on 9/7. 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.
Sat 9/1210:25 pm -
Nonstop6h 05m
Wed 9/307:45 pm -
Nonstop6h 40m
Deal found 9/7![Icelandair logo]()
$481
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Sun 9/1310:25 pm -
Nonstop6h 05m
Tue 9/224:25 pm -
Nonstop6h 50m
Deal found 9/4![Icelandair logo]()
$495
This FlightHub deal was found by Cheapflights users on 9/4. 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.
Sun 9/2710:25 pm -
Nonstop6h 05m
Sat 10/244:25 pm -
Nonstop6h 50m
Deal found 9/4![Icelandair logo]()
$456
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 10/312:56 pm -
1 stop15h 14m
Sat 10/107:50 pm -
1 stop20h 31m
Deal found 9/5![Multiple Airlines logo]()
$480
This Trip.com deal was found by Cheapflights users on 9/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:25 pm -
Nonstop6h 05m
Sun 10/187:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$460
This Cheapflightsfares deal was found by Cheapflights users on 9/6. 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.
Sun 10/410:25 pm -
Nonstop6h 05m
Wed 10/147:45 pm -
Nonstop6h 40m
Deal found 9/6![Icelandair logo]()
$485
This Cheapflightsfares deal was found by Cheapflights users on 9/5. 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.
Mon 10/57:25 pm -
Nonstop6h 15m
Wed 10/147:45 pm -
Nonstop6h 40m
Deal found 9/5![Icelandair logo]()
$444
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
Nonstop6h 05m
Sun 10/187:45 pm -
Nonstop6h 40m
Deal found 9/3![Icelandair logo]()
$467
This Icelandair deal was found by Cheapflights users on 9/3. 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 10/1110:25 pm -
Nonstop6h 05m
Thu 10/224:25 pm -
Nonstop6h 50m
Deal found 9/3![Icelandair logo]()
$468
This SmartFares deal was found by Cheapflights users on 9/3. 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.
Wed 10/143:45 pm -
1 stop12h 00m
Tue 10/2010:00 am -
1 stop9h 55m
Deal found 9/3![Air Canada logo]()
$493
One-way flights from O'Hare Intl to Keflavik IntlSearch for one-way flight options from O'Hare Intl to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
Search for one-way flight options from O'Hare Intl to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated September 8, 2026.
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 9/155:30 pm -
1 stop33h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![WestJet logo]()
$372
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 12/83:55 pm -
2 stops18h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Multiple Airlines logo]()
$375
This Mytrip deal was found by Cheapflights users on 9/5. 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 10/297:30 pm -
Nonstop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Icelandair logo]()
$384
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 10/2710:40 am -
3 stops43h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$397
This Mytrip deal was found by Cheapflights users on 9/4. 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 10/277:30 pm -
Nonstop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$398
This Cheapflightsfares deal was found by Cheapflights users on 9/4. 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.
Sun 10/1810:25 pm -
Nonstop6h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$399
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 12/86:30 pm -
Nonstop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Icelandair logo]()
$402
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 12/116:15 am -
2 stops29h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$403
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 11/233:55 pm -
2 stops35h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$404
This Kiwi.com deal was found by Cheapflights users on 9/4. 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 1/49:00 pm -
2 stops32h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Multiple Airlines logo]()
$406
This oojo deal was found by Cheapflights users on 9/4. 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.
Mon 1/46:30 pm -
Nonstop6h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Icelandair logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 9/5. 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 11/108:05 pm -
2 stops31h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$428
Find flight deals from O'Hare Intl to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from O'Hare Intl (ORD) 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 September 8, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $431 (SmartFares) |
One-way from | $372 (Kiwi.com) |
Popular in | June |
Cheapest in | April |
Average price | $661 |
Good round-trip deal | $616 or less |
Good one-way deal | $284 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from O'Hare Intl 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 7,457,451 searches. Data last updated September 8, 2026.
Use the filters below to find and compare flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Tue 9/15
5:30 pm-7:40 am
1 stop33h 10m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$372
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Tue 12/8
3:55 pm-4:15 pm
2 stops18h 20m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$375
Quickest round-trip
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Tue 12/8
6:30 pm-6:45 am
Nonstop6h 15m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$402
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Sun 10/11
10:25 pm-9:30 am
Nonstop6h 05m
Reykjavik Keflavik Intl
Fri 10/23
4:25 pm-6:15 pm
Nonstop6h 50m
$468
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Tue 9/29
11:05 am-7:55 am
1 stop15h 50m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$469
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Wed 9/16
10:40 am-8:45 am
2 stops17h 05m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$474
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Thu 10/1
10:30 pm-11:30 pm
1 stop20h 00m
Reykjavik Keflavik Intl
Wed 12/31
12:00 am-6:00 pm
Nonstop0h 00m
$483
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Fri 10/23
9:35 pm-8:50 am
Nonstop6h 15m
Reykjavik Keflavik Intl
Mon 11/2
12:00 pm-12:55 pm
Nonstop6h 55m
$517
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Sun 10/18
12:59 pm-8:45 am
1 stop14h 46m
Reykjavik Keflavik Intl
Thu 10/22
12:00 pm-1:55 pm
Nonstop6h 55m
$525
ChicagoReykjavik
ORD Chicago O'Hare Intl - KEF Reykjavik Keflavik Intl
ORDKEF
Chicago O'Hare Intl
Fri 9/25
9:35 pm-7:55 am
2 stops29h 20m
Reykjavik Keflavik Intl
Thu 10/15
12:00 pm-1:55 pm
Nonstop6h 55m
$525
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from O'Hare Intl 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 O'Hare Intl to Keflavik Intl in September.
| 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*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Chicago O'Hare Intl Airport-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Chicago O'Hare Intl Airport-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 O'Hare Intl Airport-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 O'Hare Intl to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from O'Hare Intl with our price prediction graph.
ORD-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 O'Hare Intl Airport to Reykjavik Keflavik Intl Airport
Prices
Airlines
How far ahead should I book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?
To ensure you get the cheapest price possible for a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport, you should look to book at least 57 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
What is the cheapest month to book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport?
Currently, April is the cheapest month in which you can book a flight from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport (average of $483). Flying from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport in June is currently the most expensive (average of $821). 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 ORD to KEF?
Find hourly flight availability from O'Hare Intl 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 September 8, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport as you normally would.
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 September 8, 2026.
Read through reviews of airlines operating flights from Chicago O'Hare Intl Airport to Reykjavik Keflavik Intl Airport, such as United Airlines and Icelandair. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Food
6.7
Boarding
7.7
Comfort
7.3
Crew
8.1
Overall
7.4
Entertainment
7.1
Reviews
1 / 20
2.0
MediocreDawn,Aug 2026
ORD - DEN
Related info for your journey
Find useful and relevant information for your journey from O'Hare Intl 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
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O'Hare Intl and Keflavik Intl flights
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Top 2 airlines flying from O'Hare Intl to Keflavik Intl
Discover the top 2 airlines that operate flights from O'Hare Intl 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 7,457,451 searches. Data last updated September 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$374 | Average$648 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$528 | Average$743 | FlexibilityNo cancel fee | On-time69% |