$310+ 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 8/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Apr 23 — Apr 301
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 March 24, 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 March 24, 2026.
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 8/56:00 am
ONT
- FCO
1 stop22h 20m
United Airlines
Thu 8/2011:30 am
FCO
- ONT
2 stops39h 49m
United Airlines
Deal found 3/23![United Airlines logo]()
$657
This Cheapflightsfares deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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
Wed 8/261:10 pm
FCO
- ONT
1 stop16h 58m
British Airways
Deal found 3/21![British Airways logo]()
$663
This British Airways deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 11/107:00 am
ONT
- FCO
1 stop18h 45m
British Airways
Tue 11/2411:00 am
FCO
- ONT
1 stop21h 57m
British Airways
Deal found 3/20![British Airways logo]()
$672
This British Airways deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Sun 11/152:59 pm
ONT
- FCO
2 stops19h 56m
British Airways
Thu 11/2611:00 am
FCO
- ONT
1 stop20h 23m
British Airways
Deal found 3/22![British Airways logo]()
$674
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:20 am
ONT
- FCO
1 stop18h 50m
Delta
Thu 8/206:30 am
FCO
- ONT
2 stops18h 44m
Delta
Deal found 3/21![Delta logo]()
$676
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 8/167:00 am
ONT
- FCO
1 stop18h 50m
Delta
Thu 8/2712:20 pm
FCO
- ONT
1 stop19h 20m
Delta
Deal found 3/22![Delta logo]()
$677
This oojo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 8/311:59 pm
ONT
- FCO
1 stop27h 06m
British Airways
Thu 8/201:10 pm
FCO
- ONT
1 stop18h 56m
British Airways
Deal found 3/20![British Airways logo]()
$678
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 8/1511:55 am
ONT
- FCO
1 stop37h 15m
Delta
Fri 8/286:30 am
FCO
- ONT
2 stops18h 44m
Delta
Deal found 3/20![Delta logo]()
$682
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 8/47:05 am
ONT
- FCO
1 stop18h 45m
Delta
Wed 8/196:05 am
FCO
- ONT
2 stops19h 09m
Delta
Deal found 3/21![Delta logo]()
$684
This Finnair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:00 am
ONT
- FCO
2 stops25h 55m
Multiple Airlines
Thu 11/266:40 pm
FCO
- ONT
2 stops32h 42m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$685
This KLM deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:49 pm
ONT
- MAD
1 stop14h 26m
KLM
Wed 4/2912:45 pm
MAD
- ONT
1 stop17h 15m
KLM
Deal found 3/23![KLM logo]()
$685
This KLM deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1412:49 pm
ONT
- MAD
1 stop14h 26m
KLM
Wed 4/2912:45 pm
MAD
- ONT
1 stop17h 15m
KLM
Deal found 3/22![KLM logo]()
$694
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 March 24, 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 March 24, 2026.
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1910:15 pm
ONT
- MAD
1 stop29h 00m
Delta
Mon 5/412:45 pm
MAD
- ONT
1 stop31h 51m
Delta
Deal found 3/22![Delta logo]()
$740
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Mon 5/41:30 pm
MAD
- ONT
2 stops18h 05m
United Airlines
Deal found 3/19![United Airlines logo]()
$757
This KLM deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/147:05 am
ONT
- FCO
1 stop15h 30m
KLM
Thu 5/141:10 pm
FCO
- ONT
1 stop17h 38m
KLM
Deal found 3/19![KLM logo]()
$779
This Turkish Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
Mon 9/1410:56 pm
ONT
- DUB
2 stops26h 39m
Turkish Airlines
Sun 9/205:45 am
DUB
- ONT
2 stops47h 44m
Turkish Airlines
Deal found 3/19![Turkish Airlines logo]()
$852
This Finnair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:59 am
ONT
- MAD
1 stop18h 26m
Multiple Airlines
Wed 5/611:30 am
MAD
- ONT
2 stops20h 06m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$882
This British Airways deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 8/2510:25 am
ONT
- LHR
1 stop16h 30m
British Airways
Mon 9/711:00 am
LHR
- ONT
1 stop18h 39m
British Airways
Deal found 3/19![British Airways logo]()
$922
This Alaska Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/710:39 am
ONT
- FCO
1 stop17h 36m
Alaska Airlines
Fri 5/223:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 3/19![Alaska Airlines logo]()
$955
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/81:27 pm
ONT
- FCO
1 stop14h 58m
United Airlines
Tue 4/142:20 pm
FCO
- ONT
1 stop15h 16m
United Airlines
Deal found 3/19![United Airlines logo]()
$787
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 5/510:15 pm
ONT
- ATH
2 stops23h 35m
Delta
Thu 5/149:45 am
ATH
- ONT
2 stops23h 49m
Delta
Deal found 3/22![Delta logo]()
$798
This KLM deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:05 am
ONT
- FCO
1 stop15h 30m
KLM
Sun 5/39:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 3/21![KLM logo]()
$842
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/410:49 am
ONT
- FCO
1 stop17h 51m
United Airlines
Tue 4/142:20 pm
FCO
- ONT
1 stop15h 16m
United Airlines
Deal found 3/19![United Airlines logo]()
$797
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 5/511:53 am
ONT
- ATH
2 stops25h 07m
Delta
Tue 5/126:00 am
ATH
- ONT
2 stops27h 34m
Delta
Deal found 3/21![Delta logo]()
$802
This Turkish Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 9/1510:56 pm
ONT
- DUB
2 stops50h 39m
Turkish Airlines
Tue 9/2910:40 am
DUB
- ONT
2 stops42h 49m
Turkish Airlines
Deal found 3/20![Turkish Airlines logo]()
$892
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/61:27 pm
ONT
- FCO
1 stop15h 13m
United Airlines
Mon 4/139:45 am
FCO
- ONT
1 stop21h 46m
United Airlines
Deal found 3/21![United Airlines logo]()
$797
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/251:29 pm
ONT
- IST
2 stops52h 01m
Delta
Wed 5/66:00 am
IST
- ONT
2 stops21h 15m
Delta
Deal found 3/19![Delta logo]()
$806
This Turkish Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/176:00 am
ONT
- BCN
2 stops32h 15m
Multiple Airlines
Fri 4/247:40 am
BCN
- ONT
2 stops35h 05m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$987
This KLM deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/2010:15 pm
ONT
- ATH
1 stop26h 45m
KLM
Sun 5/39:45 am
ATH
- ONT
1 stop18h 48m
KLM
Deal found 3/23![KLM logo]()
$930
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/211:34 pm
ONT
- PMI
2 stops16h 41m
United Airlines
Tue 4/284:05 pm
PMI
- ONT
2 stops34h 42m
United Airlines
Deal found 3/23![United Airlines logo]()
$815
This Turkish Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Sun 5/1010:39 am
ONT
- FCO
2 stops27h 56m
Multiple Airlines
Wed 5/277:05 am
FCO
- ONT
2 stops37h 05m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,004
This British Airways deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Sun 8/21:10 pm
ONT
- IST
2 stops20h 05m
British Airways
Mon 8/178:15 am
IST
- ONT
2 stops22h 53m
British Airways
Deal found 3/22![British Airways logo]()
$1,107
This Turkish Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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.
Sat 9/511:59 pm
ONT
- BCN
2 stops32h 36m
Turkish Airlines
Sat 9/122:35 pm
BCN
- ONT
2 stops63h 54m
Turkish Airlines
Deal found 3/21![Turkish Airlines logo]()
$1,021
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/146:00 am
ONT
- LHR
2 stops23h 05m
Delta
Thu 4/236:30 am
LHR
- ONT
2 stops22h 30m
Delta
Deal found 3/22![Delta logo]()
$847
This KLM deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/2111:53 am
ONT
- CDG
1 stop16h 57m
KLM
Tue 4/284:00 pm
CDG
- ONT
1 stop15h 37m
KLM
Deal found 3/21![KLM logo]()
$941
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/205:10 am
ONT
- ATH
2 stops31h 55m
United Airlines
Sun 5/312:10 pm
ATH
- ONT
2 stops39h 42m
United Airlines
Deal found 3/20![United Airlines logo]()
$841
This Icelandair deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 7/282:09 pm
ONT
- DUB
2 stops39h 06m
Multiple Airlines
Tue 9/12:15 pm
DUB
- ONT
2 stops16h 24m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,026
This British Airways deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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.
Fri 5/810:59 am
ONT
- MAD
1 stop13h 36m
British Airways
Mon 5/113:55 pm
MAD
- ONT
1 stop16h 51m
British Airways
Deal found 3/21![British Airways logo]()
$1,135
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/2410:15 pm
ONT
- DUB
1 stop26h 30m
Delta
Tue 5/1211:00 am
DUB
- ONT
1 stop15h 36m
Delta
Deal found 3/21![Delta logo]()
$868
This KLM deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/36:00 am
ONT
- IST
2 stops24h 20m
KLM
Wed 6/104:25 am
IST
- ONT
2 stops22h 51m
KLM
Deal found 3/19![KLM logo]()
$988
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/57:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Sun 4/1911:35 am
DUB
- ONT
1 stop18h 56m
United Airlines
Deal found 3/22![United Airlines logo]()
$862
This British Airways deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 9/17:20 am
ONT
- FRA
1 stop16h 25m
British Airways
Fri 9/189:20 am
FRA
- ONT
1 stop19h 35m
British Airways
Deal found 3/19![British Airways logo]()
$1,148
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated March 24, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated March 24, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 3/3010:56 am
ONT
- FCO
1 stop16h 09m
British Airways
Thu 4/161:10 pm
FCO
- ONT
1 stop19h 36m
British Airways
Deal found 3/20![British Airways logo]()
$702
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/61:27 pm
ONT
- FCO
1 stop15h 13m
United Airlines
Wed 4/226:50 am
FCO
- ONT
2 stops19h 57m
United Airlines
Deal found 3/20![United Airlines logo]()
$705
This oojo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/62:39 pm
ONT
- FCO
1 stop36h 26m
British Airways
Tue 4/212:15 pm
FCO
- ONT
1 stop39h 52m
British Airways
Deal found 3/20![British Airways logo]()
$713
This oojo deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/77:30 am
ONT
- FCO
1 stop19h 35m
British Airways
Wed 4/222:15 pm
FCO
- ONT
1 stop39h 52m
British Airways
Deal found 3/19![British Airways logo]()
$708
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/87:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Wed 4/228:25 am
MAD
- ONT
2 stops23h 20m
United Airlines
Deal found 3/20![United Airlines logo]()
$699
This United Airlines deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/116:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Thu 4/2311:30 am
FCO
- ONT
2 stops44h 01m
United Airlines
Deal found 3/20![United Airlines logo]()
$687
This KLM deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1412:49 pm
ONT
- MAD
1 stop14h 26m
KLM
Tue 4/2812:45 pm
MAD
- ONT
1 stop17h 15m
KLM
Deal found 3/22![KLM logo]()
$694
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/171:27 pm
ONT
- FCO
1 stop15h 13m
United Airlines
Tue 4/216:50 am
FCO
- ONT
2 stops20h 12m
United Airlines
Deal found 3/21![United Airlines logo]()
$725
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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
Thu 4/306:30 am
FCO
- ONT
2 stops25h 07m
Delta
Deal found 3/21![Delta logo]()
$706
This United Airlines deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/187:00 am
ONT
- FCO
2 stops41h 15m
United Airlines
Thu 4/307:10 am
FCO
- ONT
2 stops24h 49m
United Airlines
Deal found 3/21![United Airlines logo]()
$709
This oojo deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/2011:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Wed 4/2910:25 am
MAD
- ONT
1 stop19h 42m
British Airways
Deal found 3/21![British Airways logo]()
$730
This KLM deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2212:49 pm
ONT
- MAD
1 stop14h 26m
KLM
Wed 4/2912:45 pm
MAD
- ONT
1 stop17h 15m
KLM
Deal found 3/23![KLM logo]()
$685
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 March 24, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated March 24, 2026.
This oojo deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:54 pm
ONT
- FCO
2 stops20h 46m
British Airways
Deal found 3/19![British Airways logo]()
$310
This United Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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
- FCO
1 stop22h 20m
United Airlines
Deal found 3/22![United Airlines logo]()
$319
This United Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 8/95:00 am
ONT
- FCO
1 stop22h 20m
United Airlines
Deal found 3/19![United Airlines logo]()
$321
This Air Canada deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 8/165:00 am
ONT
- FCO
2 stops21h 45m
Air Canada
Deal found 3/22![Air Canada logo]()
$323
This Cheapflightsfares deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 8/1210:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Deal found 3/23![British Airways logo]()
$324
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 8/21:50 pm
ONT
- FCO
3 stops34h 25m
United Airlines
Deal found 3/23![United Airlines logo]()
$325
This British Airways deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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.
Wed 8/1912:35 pm
ONT
- MAD
2 stops18h 15m
British Airways
Deal found 3/19![British Airways logo]()
$327
This American Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:20 am
ONT
- MAD
2 stops16h 00m
American Airlines
Deal found 3/23![American Airlines logo]()
$328
This oojo deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/94:54 pm
ONT
- PMI
2 stops33h 41m
British Airways
Deal found 3/22![British Airways logo]()
$329
This Iberia deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:47 pm
ONT
- MAD
1 stop16h 38m
Iberia
Deal found 3/19![Iberia logo]()
$330
This oojo deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 8/811:59 pm
ONT
- FCO
1 stop27h 06m
British Airways
Deal found 3/21![British Airways logo]()
$331
This United Airlines deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 8/14:20 pm
ONT
- FCO
1 stop36h 00m
United Airlines
Deal found 3/23![United Airlines logo]()
$332
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 March 24, 2026.
Round-trip from | $657 (United Airlines) |
|---|---|
One-way from | $310 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $806 |
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 March 24, 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
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Sun 4/19
10:15 pm-12:15 pm
1 stop29h 00m
Madrid Barajas
Mon 5/4
12:45 pm-11:36 am
1 stop31h 51m
$740
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 4/28
7:00 am-8:05 am
2 stops16h 05m
Madrid Barajas
Mon 5/4
1:30 pm-10:35 pm
2 stops18h 05m
$757
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 4/14
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Thu 5/14
1:10 pm-9:48 pm
1 stop17h 38m
$779
Quickest round-trip
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 4/8
1:27 pm-1:25 pm
1 stop14h 58m
Rome Fiumicino
Tue 4/14
2:20 pm-8:36 pm
1 stop15h 16m
$787
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 4/4
10:49 am-1:40 pm
1 stop17h 51m
Rome Fiumicino
Tue 4/14
2:20 pm-8:36 pm
1 stop15h 16m
$797
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 4/6
1:27 pm-1:40 pm
1 stop15h 13m
Rome Fiumicino
Mon 4/13
9:45 am-10:31 pm
1 stop21h 46m
$797
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 5/5
10:15 pm-7:50 am
2 stops23h 35m
Athens Eleftherios V.
Thu 5/14
9:45 am-11:34 pm
2 stops23h 49m
$798
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 5/5
11:53 am-11:00 pm
2 stops25h 07m
Athens Eleftherios V.
Tue 5/12
6:00 am-11:34 pm
2 stops27h 34m
$802
OntarioIstanbul
ONT - IST
ONTIST
Ontario
Sat 4/25
1:29 pm-3:30 am
2 stops52h 01m
Istanbul
Wed 5/6
6:00 am-5:15 pm
2 stops21h 15m
$806
OntarioPalma de Mallorca
ONT - PMI
ONTPMI
Ontario
Tue 4/21
1:34 pm-3:15 pm
2 stops16h 41m
Palma de Mallorca Son Sant Joan
Tue 4/28
4:05 pm-5:47 pm
2 stops34h 42m
$815
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-MAD
ONT-FCO
ONT-DUB
ONT-LHR
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-MAD
ONT-FCO
ONT-DUB
ONT-LHR
What is the cheapest month to book a flight from Ontario to Europe?
Currently, October is the cheapest month in which you can book a flight from Ontario to Europe (average of $240). Flying from Ontario to Europe in June is currently the most expensive (average of $599). 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 March 24, 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.
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Boarding
8.1
Entertainment
7.8
Overall
7.9
Food
7.2
Crew
8.5
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 March 24, 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 March 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$879 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$444 | Average$888 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$497 | Average$757 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$915 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$888 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% |