$335+ Cheap flights from Ontario (ONT) to Europe
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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
May 17 — May 241
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Europe with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Cheapest flights from Ontario to EuropeExplore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
Explore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 17, 2026.
This Trip.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/234:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Wed 5/2710:40 am
KEF
- ONT
2 stops44h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$677
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Fri 6/1212:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$694
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 6/312:06 pm
ONT
- KEF
1 stop13h 54m
Alaska Airlines
Tue 6/912:45 pm
KEF
- ONT
1 stop18h 13m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$695
This Alaska Airlines deal was found by Cheapflights users on 4/13. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:41 pm
ONT
- KEF
1 stop30h 19m
Alaska Airlines
Thu 6/1112:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$701
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Tue 8/2512:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$704
This Delta deal was found by Cheapflights users on 4/17. 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 10/271:00 pm
ONT
- IST
2 stops18h 55m
Delta
Thu 11/55:55 pm
IST
- ONT
2 stops33h 17m
Delta
Deal found 4/17![Delta logo]()
$706
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 11/25:05 pm
ONT
- IST
2 stops37h 50m
Delta
Tue 11/105:55 pm
IST
- ONT
2 stops33h 17m
Delta
Deal found 4/17![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 4/17. 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.
Mon 8/175:55 pm
ONT
- IST
2 stops47h 35m
Delta
Mon 8/245:20 pm
IST
- ONT
2 stops38h 36m
Delta
Deal found 4/17![Delta logo]()
$712
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:39 pm
ONT
- FCO
1 stop14h 26m
British Airways
Thu 8/271:10 pm
FCO
- ONT
1 stop17h 02m
British Airways
Deal found 4/14![British Airways logo]()
$713
This Expedia deal was found by Cheapflights users on 4/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Tue 8/412:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$714
This Ticket deal was found by Cheapflights users on 4/13. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
Multiple Airlines
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$715
This KLM deal was found by Cheapflights users on 4/17. 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 11/247:00 am
ONT
- FCO
1 stop16h 15m
KLM
Tue 12/81:30 pm
FCO
- ONT
1 stop17h 44m
KLM
Deal found 4/17![KLM logo]()
$719
Best flights from Ontario to EuropeDiscover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
Discover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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.
Wed 8/2611:58 am
ONT
- KEF
1 stop14h 02m
Alaska Airlines
Thu 9/312:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$726
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:00 pm
ONT
- FCO
1 stop24h 35m
KLM
Tue 5/196:30 am
FCO
- ONT
2 stops19h 40m
KLM
Deal found 4/14![KLM logo]()
$788
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:59 pm
ONT
- FCO
2 stops27h 36m
United Airlines
Tue 5/1911:00 am
FCO
- ONT
2 stops20h 59m
United Airlines
Deal found 4/14![United Airlines logo]()
$793
This Delta deal was found by Cheapflights users on 4/15. 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 8/186:00 am
ONT
- DUB
2 stops18h 45m
Delta
Tue 9/15:55 am
DUB
- ONT
2 stops24h 01m
Delta
Deal found 4/15![Delta logo]()
$881
This Icelandair deal was found by Cheapflights users on 4/16. 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 9/1610:55 am
ONT
- KEF
1 stop12h 05m
Multiple Airlines
Tue 9/294:50 pm
KEF
- ONT
1 stop12h 10m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$967
This British Airways deal was found by Cheapflights users on 4/16. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:59 am
ONT
- LHR
1 stop13h 36m
British Airways
Sat 5/1610:05 am
LHR
- ONT
1 stop14h 17m
British Airways
Deal found 4/16![British Airways logo]()
$1,060
This Priceline deal was found by Cheapflights users on 4/17. 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 8/111:24 pm
ONT
- DUB
1 stop25h 36m
JetBlue
Sat 8/811:30 am
DUB
- ONT
1 stop18h 35m
JetBlue
Deal found 4/17![JetBlue logo]()
$1,080
This Qatar Airways deal was found by Cheapflights users on 4/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
ONT
- IST
2 stops39h 20m
Qatar Airways
Tue 5/125:00 pm
IST
- ONT
2 stops40h 58m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,130
This Air Serbia deal was found by Cheapflights users on 4/15. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 6/1411:53 pm
ONT
- ATH
2 stops29h 52m
Air Serbia
Wed 6/244:30 am
ATH
- ONT
2 stops28h 08m
Air Serbia
Deal found 4/15![Air Serbia logo]()
$1,438
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
- KEF
1 stop20h 00m
Alaska Airlines
Wed 6/312:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$754
This Turkish Airlines deal was found by Cheapflights users on 4/13. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/1511:25 pm
ONT
- CDG
2 stops52h 20m
Turkish Airlines
Tue 5/267:20 am
CDG
- ONT
2 stops46h 27m
Turkish Airlines
Deal found 4/13![Turkish Airlines logo]()
$1,588
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Sun 8/165:00 am
ONT
- ATH
2 stops22h 25m
United Airlines
Fri 9/412:35 pm
ATH
- ONT
1 stop39h 44m
United Airlines
Deal found 4/13![United Airlines logo]()
$829
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 6/412:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Wed 6/1012:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$755
This United Airlines deal was found by Cheapflights users on 4/15. 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 8/245:45 am
ONT
- FCO
2 stops22h 30m
United Airlines
Fri 8/286:50 am
FCO
- ONT
2 stops20h 29m
United Airlines
Deal found 4/15![United Airlines logo]()
$851
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 8/2211:58 am
ONT
- KEF
1 stop14h 02m
Alaska Airlines
Fri 8/2812:45 pm
KEF
- ONT
1 stop13h 18m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$793
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/410:59 pm
ONT
- MAD
2 stops22h 21m
Delta
Tue 9/89:50 am
MAD
- ONT
1 stop17h 11m
Delta
Deal found 4/13![Delta logo]()
$970
This KLM deal was found by Cheapflights users on 4/15. 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.
Mon 7/277:05 am
ONT
- KEF
2 stops16h 55m
Multiple Airlines
Tue 8/49:30 am
KEF
- ONT
2 stops14h 05m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$984
This KLM deal was found by Cheapflights users on 4/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:00 am
ONT
- FCO
2 stops17h 35m
KLM
Mon 10/126:30 am
FCO
- ONT
2 stops19h 47m
KLM
Deal found 4/13![KLM logo]()
$992
This British Airways deal was found by Cheapflights users on 4/17. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/104:59 pm
ONT
- ATH
2 stops23h 16m
British Airways
Sun 9/208:50 pm
ATH
- ONT
2 stops34h 18m
British Airways
Deal found 4/17![British Airways logo]()
$1,061
This United Airlines deal was found by Cheapflights users on 4/17. 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 9/145:45 am
ONT
- FCO
2 stops42h 30m
United Airlines
Sun 9/206:50 am
FCO
- ONT
2 stops23h 02m
United Airlines
Deal found 4/17![United Airlines logo]()
$903
This Alaska Airlines deal was found by Cheapflights users on 4/17. 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 8/2811:58 am
ONT
- KEF
1 stop14h 02m
Alaska Airlines
Mon 8/3112:45 pm
KEF
- ONT
1 stop13h 18m
Alaska Airlines
Deal found 4/17![Alaska Airlines logo]()
$827
This Icelandair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:09 pm
ONT
- KEF
1 stop11h 16m
Multiple Airlines
Thu 9/244:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,016
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am
ONT
- DUB
1 stop17h 45m
Delta
Sat 10/311:00 am
DUB
- ONT
1 stop15h 01m
Delta
Deal found 4/13![Delta logo]()
$1,020
This KLM deal was found by Cheapflights users on 4/16. 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.
Sat 5/27:05 am
ONT
- FCO
1 stop15h 30m
KLM
Sat 5/91:10 pm
FCO
- ONT
1 stop17h 38m
KLM
Deal found 4/16![KLM logo]()
$1,059
This Qatar Airways deal was found by Cheapflights users on 4/16. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:39 am
ONT
- IST
2 stops34h 41m
Qatar Airways
Sun 5/105:00 pm
IST
- ONT
2 stops40h 59m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,170
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Mon 5/1111:35 am
DUB
- ONT
1 stop19h 00m
United Airlines
Deal found 4/14![United Airlines logo]()
$913
This British Airways deal was found by Cheapflights users on 4/15. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:33 pm
ONT
- IST
2 stops19h 52m
British Airways
Fri 8/288:10 am
IST
- ONT
2 stops23h 02m
British Airways
Deal found 4/15![British Airways logo]()
$1,123
This Turkish Airlines deal was found by Cheapflights users on 4/16. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:39 am
ONT
- CDG
2 stops38h 21m
Multiple Airlines
Tue 5/124:10 pm
CDG
- ONT
2 stops40h 48m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$1,071
This Qatar Airways deal was found by Cheapflights users on 4/13. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:59 pm
ONT
- IST
2 stops49h 21m
Qatar Airways
Sun 5/1711:00 am
IST
- ONT
2 stops42h 17m
Qatar Airways
Deal found 4/13![Qatar Airways logo]()
$1,210
This United Airlines deal was found by Cheapflights users on 4/16. 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 9/147:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Thu 9/2411:15 am
MAD
- ONT
2 stops18h 05m
United Airlines
Deal found 4/16![United Airlines logo]()
$933
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated April 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/17. 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.
Sat 4/186:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Thu 4/3011:30 am
FCO
- ONT
2 stops55h 11m
United Airlines
Deal found 4/17![United Airlines logo]()
$738
This KLM deal was found by Cheapflights users on 4/13. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:49 pm
ONT
- FCO
1 stop37h 01m
KLM
Fri 5/110:10 am
FCO
- ONT
2 stops19h 50m
KLM
Deal found 4/13![KLM logo]()
$751
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 pm
ONT
- FCO
1 stop24h 20m
Delta
Wed 5/69:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/13![Delta logo]()
$758
This Ticket deal was found by Cheapflights users on 4/13. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
Multiple Airlines
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Multiple Airlines
Deal found 4/13![Multiple Airlines logo]()
$715
This Ticket deal was found by Cheapflights users on 4/15. 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.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
KLM
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 4/15![KLM logo]()
$720
This Delta deal was found by Cheapflights users on 4/13. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
Delta
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/13![Delta logo]()
$749
This Trip.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/234:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Wed 5/2710:40 am
KEF
- ONT
2 stops44h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$677
This Trip.com deal was found by Cheapflights users on 4/16. 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.
Thu 5/286:00 am
ONT
- KEF
2 stops20h 25m
Multiple Airlines
Wed 6/310:40 am
KEF
- ONT
2 stops30h 25m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$753
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
- KEF
1 stop20h 00m
Alaska Airlines
Wed 6/312:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$754
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 5/304:03 pm
ONT
- KEF
1 stop33h 57m
Alaska Airlines
Fri 6/512:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$701
This Trip.com deal was found by Cheapflights users on 4/16. 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.
Sat 5/304:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Sat 6/610:40 am
KEF
- ONT
2 stops39h 52m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$732
This Alaska Airlines deal was found by Cheapflights users on 4/16. 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 5/304:03 pm
ONT
- KEF
1 stop33h 57m
Alaska Airlines
Sat 6/612:45 pm
KEF
- ONT
1 stop13h 17m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$761
One-way flights from Ontario to EuropeSearch for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:39 pm
ONT
- FCO
2 stops18h 46m
British Airways
Deal found 4/14![British Airways logo]()
$335
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:29 am
ONT
- MAD
1 stop13h 36m
British Airways
Deal found 4/14![British Airways logo]()
$343
This oojo deal was found by Cheapflights users on 4/17. 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.
Tue 7/2810:25 am
ONT
- FCO
1 stop16h 40m
British Airways
Deal found 4/17![British Airways logo]()
$345
This United Airlines deal was found by Cheapflights users on 4/13. 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.
Wed 8/51:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Deal found 4/13![United Airlines logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 4/13. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Deal found 4/13![British Airways logo]()
$348
This Air Canada deal was found by Cheapflights users on 4/17. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/35:00 am
ONT
- FCO
2 stops19h 15m
Air Canada
Deal found 4/17![Air Canada logo]()
$350
This Expedia deal was found by Cheapflights users on 4/17. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:29 am
ONT
- MAD
1 stop13h 36m
British Airways
Deal found 4/17![British Airways logo]()
$351
This Expedia deal was found by Cheapflights users on 4/13. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:29 am
ONT
- MAD
1 stop13h 36m
British Airways
Deal found 4/13![British Airways logo]()
$353
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Deal found 4/14![British Airways logo]()
$354
This oojo deal was found by Cheapflights users on 4/15. 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.
Tue 8/112:27 pm
ONT
- PMI
2 stops18h 23m
British Airways
Deal found 4/15![British Airways logo]()
$354
This Air Canada deal was found by Cheapflights users on 4/15. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:00 am
ONT
- FCO
2 stops21h 45m
Air Canada
Deal found 4/15![Air Canada logo]()
$355
This Delta deal was found by Cheapflights users on 4/16. 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 10/67:00 am
ONT
- MAD
1 stop20h 15m
Delta
Deal found 4/16![Delta logo]()
$355
Find flight deals from Ontario to Europe
Keep the following information in mind while searching for Ontario to Europe flight deals. Data was last updated April 17, 2026.
Round-trip from | $677 (Trip.com) |
|---|---|
One-way from | $335 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $788 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Europe 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 April 17, 2026.
Use the filters below to find and compare flights from Ontario to Europe that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Wed 8/26
11:58 am-9:00 am
1 stop14h 02m
Reykjavik Keflavik Intl
Thu 9/3
12:45 pm-11:24 pm
1 stop17h 39m
$726
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 5/28
6:00 am-9:00 am
1 stop20h 00m
Reykjavik Keflavik Intl
Wed 6/3
12:45 pm-6:47 pm
1 stop13h 02m
$754
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 6/4
12:04 pm-9:00 am
1 stop13h 56m
Reykjavik Keflavik Intl
Wed 6/10
12:45 pm-11:11 pm
1 stop17h 26m
$755
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 5/9
10:00 pm-7:35 am
1 stop24h 35m
Rome Fiumicino
Tue 5/19
6:30 am-5:10 pm
2 stops19h 40m
$788
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 5/9
6:59 pm-7:35 am
2 stops27h 36m
Rome Fiumicino
Tue 5/19
11:00 am-10:59 pm
2 stops20h 59m
$793
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Sat 8/22
11:58 am-9:00 am
1 stop14h 02m
Reykjavik Keflavik Intl
Fri 8/28
12:45 pm-7:03 pm
1 stop13h 18m
$793
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Fri 8/28
11:58 am-9:00 am
1 stop14h 02m
Reykjavik Keflavik Intl
Mon 8/31
12:45 pm-7:03 pm
1 stop13h 18m
$827
OntarioAthens
ONT - ATH
ONTATH
Ontario
Sun 8/16
5:00 am-1:25 pm
2 stops22h 25m
Athens Eleftherios V.
Fri 9/4
12:35 pm-6:19 pm
1 stop39h 44m
$829
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 8/24
5:45 am-1:15 pm
2 stops22h 30m
Rome Fiumicino
Fri 8/28
6:50 am-6:19 pm
2 stops20h 29m
$851
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Tue 8/18
6:00 am-8:45 am
2 stops18h 45m
Dublin
Tue 9/1
5:55 am-9:56 pm
2 stops24h 01m
$881
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Europe
Have a flexible travel schedule? Discover the best time to fly to Europe from Ontario with our price prediction graph.
ONT-KEF
ONT-IST
ONT-FCO
ONT-MAD
ONT-ATH
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 Ontario to Europe
ONT-EU0
ONT-KEF
ONT-IST
ONT-FCO
ONT-MAD
What is the cheapest month to book a flight from Ontario to Europe?
Currently, September is the cheapest month in which you can book a flight from Ontario to Europe (average of $251). Flying from Ontario to Europe in June is currently the most expensive (average of $575). 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.
Reviews of airlines servicing Europe
Get insights into the airlines that provide service to Europe. 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 Europe. Reviews last updated April 17, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Ontario to Europe have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Crew
8.5
Food
7.2
Entertainment
7.8
Comfort
7.9
Overall
7.9
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Europe
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Europe by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Europe by cabin class
Find flights from Ontario to Europe, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Europe flights
Browse other Ontario and Europe flight options. Last updated on April 17, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Europe countries
Consider these flights traveling to countries located in Europe.
Ontario to Europe flights
Consider these flights traveling from Ontario to Europe.
Top 6 airlines flying from Ontario to Europe
Discover the top 6 airlines that operate flights from Ontario to Europe. 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 April 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$720 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$904 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$874 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$918 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$624 | Average$902 | FlexibilityNo cancel fee | On-time71% |