$325+ Cheap flights from Ontario (ONT) 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 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — KEF
Jul 13 — Jul 201
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Keflavik Intl with Cheapflights
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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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Keflavik Intl
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Cheapest flights from Ontario to Keflavik IntlExplore the most affordable flight options available from Ontario to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
Explore the most affordable flight options available from Ontario to Keflavik Intl. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 13, 2026.
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2910:55 am
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Sun 10/44:50 pm
KEF
- ONT
1 stop13h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$662
This Icelandair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/178:25 am
ONT
- KEF
1 stop14h 35m
Multiple Airlines
Sat 10/244:50 pm
KEF
- ONT
1 stop24h 05m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$669
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/232:15 pm
ONT
- KEF
1 stop12h 10m
Multiple Airlines
Fri 8/284:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$675
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/69:15 am
ONT
- KEF
1 stop13h 45m
Multiple Airlines
Sun 10/114:50 pm
KEF
- ONT
1 stop13h 00m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$739
This Icelandair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:55 am
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Wed 8/264:50 pm
KEF
- ONT
1 stop12h 10m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$752
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Sat 8/2912:45 pm
KEF
- ONT
1 stop13h 18m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$759
This Priceline deal was found by Cheapflights users on 6/12. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:00 pm
ONT
- KEF
1 stop14h 00m
Alaska Airlines
Thu 8/2712:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 6/12![Alaska Airlines logo]()
$764
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:59 pm
ONT
- KEF
1 stop30h 01m
Alaska Airlines
Fri 8/2812:45 pm
KEF
- ONT
1 stop13h 18m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$772
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:25 pm
ONT
- KEF
1 stop10h 35m
Multiple Airlines
Tue 8/254:50 pm
KEF
- ONT
1 stop12h 10m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$776
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Fri 8/2112:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$789
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/123:14 pm
ONT
- KEF
1 stop11h 11m
Multiple Airlines
Thu 9/174:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$802
Best flights from Ontario to Keflavik IntlDiscover carefully curated flight deals from Ontario to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
Discover carefully curated flight deals from Ontario to Keflavik Intl that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 13, 2026.
This Icelandair deal was found by Cheapflights users on 6/10. 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.
Mon 8/242:00 pm
ONT
- KEF
1 stop12h 25m
Multiple Airlines
Thu 9/34:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$752
This Alaska Airlines deal was found by Cheapflights users on 6/8. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/272:05 pm
ONT
- KEF
1 stop11h 55m
Alaska Airlines
Fri 8/712:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 6/8![Alaska Airlines logo]()
$955
This United Airlines deal was found by Cheapflights users on 6/11. 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 9/217:00 am
ONT
- KEF
1 stop18h 50m
United Airlines
Tue 9/2910:00 am
KEF
- ONT
2 stops42h 59m
United Airlines
Deal found 6/11![United Airlines logo]()
$979
This Delta deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ONT
- KEF
2 stops18h 00m
Delta
Thu 8/2011:25 am
KEF
- ONT
2 stops17h 27m
Delta
Deal found 6/12![Delta logo]()
$998
This Icelandair deal was found by Cheapflights users on 6/8. 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.
Thu 8/1312:25 pm
ONT
- KEF
1 stop10h 35m
Multiple Airlines
Tue 8/254:50 pm
KEF
- ONT
1 stop12h 10m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 6/11. 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 7/155:00 am
ONT
- KEF
3 stops19h 55m
United Airlines
Thu 7/2310:00 am
KEF
- ONT
3 stops43h 37m
United Airlines
Deal found 6/11![United Airlines logo]()
$982
This Icelandair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/142:14 pm
ONT
- KEF
1 stop12h 11m
Multiple Airlines
Tue 10/204:50 pm
KEF
- ONT
1 stop14h 03m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$916
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/305:26 pm
ONT
- KEF
1 stop32h 34m
Alaska Airlines
Sat 8/812:45 pm
KEF
- ONT
1 stop14h 45m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$1,023
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/286:10 am
ONT
- KEF
2 stops17h 50m
United Airlines
Tue 8/412:00 pm
KEF
- ONT
1 stop17h 51m
United Airlines
Deal found 6/13![United Airlines logo]()
$994
This Icelandair deal was found by Cheapflights users on 6/8. 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.
Tue 7/142:50 pm
ONT
- KEF
1 stop11h 35m
Multiple Airlines
Thu 7/304:50 pm
KEF
- ONT
1 stop12h 50m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$926
This Icelandair deal was found by Cheapflights users on 6/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2610:55 am
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Mon 9/74:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$939
This Icelandair deal was found by Cheapflights users on 6/10. 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.
Wed 9/910:55 am
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Thu 9/244:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,008
Last-minute flights from Ontario to Keflavik IntlDiscover last-minute flight deals from Ontario to Keflavik Intl. Data last updated June 13, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Keflavik Intl. Data last updated June 13, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/209:20 pm
ONT
- KEF
1 stop28h 40m
Alaska Airlines
Thu 6/2512:45 pm
KEF
- ONT
1 stop14h 51m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$894
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/209:20 pm
ONT
- KEF
1 stop28h 40m
Alaska Airlines
Sat 6/2712:45 pm
KEF
- ONT
1 stop31h 24m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$903
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/216:02 am
ONT
- KEF
1 stop19h 58m
Alaska Airlines
Tue 6/3012:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$886
This oojo deal was found by Cheapflights users on 6/10. 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.
Thu 7/99:20 pm
ONT
- KEF
1 stop33h 40m
Icelandair
Thu 7/2310:40 am
KEF
- ONT
1 stop20h 12m
Icelandair
Deal found 6/10![Icelandair logo]()
$867
This oojo deal was found by Cheapflights users on 6/10. 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.
Mon 7/139:20 pm
ONT
- KEF
1 stop29h 05m
Icelandair
Tue 7/2110:40 am
KEF
- ONT
1 stop20h 12m
Icelandair
Deal found 6/10![Icelandair logo]()
$871
This oojo deal was found by Cheapflights users on 6/10. 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.
Wed 7/155:54 pm
ONT
- KEF
1 stop13h 06m
Icelandair
Sat 7/2510:40 am
KEF
- ONT
1 stop30h 16m
Icelandair
Deal found 6/10![Icelandair logo]()
$869
This oojo deal was found by Cheapflights users on 6/9. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/155:54 pm
ONT
- KEF
1 stop13h 06m
Icelandair
Mon 7/2710:40 am
KEF
- ONT
1 stop31h 34m
Icelandair
Deal found 6/9![Icelandair logo]()
$896
This oojo deal was found by Cheapflights users on 6/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:20 pm
ONT
- KEF
1 stop33h 40m
Icelandair
Sat 7/2510:40 am
KEF
- ONT
1 stop30h 16m
Icelandair
Deal found 6/8![Icelandair logo]()
$868
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/175:26 pm
ONT
- KEF
1 stop32h 34m
Alaska Airlines
Wed 7/2212:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$888
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/182:05 pm
ONT
- KEF
1 stop11h 55m
Alaska Airlines
Tue 7/2112:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$880
This Alaska Airlines deal was found by Cheapflights users on 6/10. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/1912:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Tue 7/2112:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$874
This Icelandair deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/252:20 pm
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Thu 7/304:50 pm
KEF
- ONT
1 stop12h 50m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$877
One-way flights from Ontario to Keflavik IntlSearch for one-way flight options from Ontario to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated June 13, 2026.
Search for one-way flight options from Ontario to Keflavik Intl. Find affordable one-way fares based on user searches. Data last updated June 13, 2026.
This Priceline deal was found by Cheapflights users on 6/10. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Deal found 6/10![Alaska Airlines logo]()
$325
This Priceline deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:02 am
ONT
- KEF
1 stop19h 58m
Alaska Airlines
Deal found 6/13![Alaska Airlines logo]()
$385
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:59 pm
ONT
- KEF
1 stop30h 01m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$399
This Alaska Airlines deal was found by Cheapflights users on 6/9. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/212:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$410
This Priceline deal was found by Cheapflights users on 6/9. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/145:26 pm
ONT
- KEF
1 stop32h 34m
Alaska Airlines
Deal found 6/9![Alaska Airlines logo]()
$424
This United Airlines deal was found by Cheapflights users on 6/11. 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 8/179:01 am
ONT
- KEF
2 stops16h 29m
United Airlines
Deal found 6/11![United Airlines logo]()
$465
This United Airlines deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:08 am
ONT
- KEF
2 stops18h 47m
United Airlines
Deal found 6/12![United Airlines logo]()
$468
This Mytrip deal was found by Cheapflights users on 6/12. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/216:20 am
ONT
- KEF
3 stops42h 20m
WestJet
Deal found 6/12![WestJet logo]()
$479
This Priceline deal was found by Cheapflights users on 6/11. 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 Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$480
This Alaska Airlines deal was found by Cheapflights users on 6/11. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/179:20 pm
ONT
- KEF
1 stop28h 40m
Alaska Airlines
Deal found 6/11![Alaska Airlines logo]()
$495
This Mytrip deal was found by Cheapflights users on 6/9. 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 7/46:20 am
ONT
- KEF
2 stops18h 20m
WestJet
Deal found 6/9![WestJet logo]()
$508
This Mytrip deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/26:20 am
ONT
- KEF
2 stops18h 20m
WestJet
Deal found 6/13![WestJet logo]()
$509
Find flight deals from Ontario to Keflavik Intl
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) 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 June 13, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $662 (Icelandair) |
One-way from | $325 (Priceline) |
Popular in | November |
Cheapest in | April |
Average price | $969 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario 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 June 13, 2026.
Use the filters below to find and compare flights from Ontario to Reykjavik Keflavik Intl Airport that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Mon 8/24
2:00 pm-9:25 am
1 stop12h 25m
Reykjavik Keflavik Intl
Thu 9/3
4:50 pm-10:10 pm
1 stop12h 20m
$752
Quickest round-trip
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 8/13
12:25 pm-6:00 am
1 stop10h 35m
Reykjavik Keflavik Intl
Tue 8/25
4:50 pm-10:00 pm
1 stop12h 10m
$877
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Wed 10/14
2:14 pm-9:25 am
1 stop12h 11m
Reykjavik Keflavik Intl
Tue 10/20
4:50 pm-11:53 pm
1 stop14h 03m
$916
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Tue 7/14
2:50 pm-9:25 am
1 stop11h 35m
Reykjavik Keflavik Intl
Thu 7/30
4:50 pm-10:40 pm
1 stop12h 50m
$926
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Wed 8/26
10:55 am-6:00 am
1 stop12h 05m
Reykjavik Keflavik Intl
Mon 9/7
4:50 pm-10:10 pm
1 stop12h 20m
$939
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Mon 7/27
2:05 pm-9:00 am
1 stop11h 55m
Reykjavik Keflavik Intl
Fri 8/7
12:45 pm-11:11 pm
1 stop17h 26m
$955
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Mon 9/21
7:00 am-8:50 am
1 stop18h 50m
Reykjavik Keflavik Intl
Tue 9/29
10:00 am-9:59 pm
2 stops42h 59m
$979
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Wed 7/15
5:00 am-7:55 am
3 stops19h 55m
Reykjavik Keflavik Intl
Thu 7/23
10:00 am-10:37 pm
3 stops43h 37m
$982
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Tue 7/28
6:10 am-7:00 am
2 stops17h 50m
Reykjavik Keflavik Intl
Tue 8/4
12:00 pm-10:51 pm
1 stop17h 51m
$994
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Tue 8/4
6:00 am-7:00 am
2 stops18h 00m
Reykjavik Keflavik Intl
Thu 8/20
11:25 am-9:52 pm
2 stops17h 27m
$998
Showing 1-10 of 23 resultsSorted by cheapest first
Compare providers for flights from Ontario 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 Ontario to Keflavik Intl in June.
| 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 |
- Most accurate provider: When it comes to deals on Ontario-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 Ontario-Reykjavik Keflavik Intl Airport flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Reykjavik Keflavik Intl Airport flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-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 Ontario-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 Ontario to Keflavik Intl
Have a flexible travel schedule? Discover the best time to fly to Keflavik Intl from Ontario with our price prediction graph.
ONT-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.
Related info for your journey
Find useful and relevant information for your journey from Ontario 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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