$291+ 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 10/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Aug 14 — Aug 211
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Europe with Cheapflights
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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 July 15, 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 July 15, 2026.
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/191:18 pm
ONT
- BCN
2 stops34h 42m
United Airlines
Tue 9/293:15 pm
BCN
- ONT
1 stop16h 34m
United Airlines
Deal found 7/14![United Airlines logo]()
$696
This Ticket deal was found by Cheapflights users on 7/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:00 pm
ONT
- FCO
1 stop37h 50m
KLM
Wed 8/199:45 am
FCO
- ONT
1 stop19h 08m
KLM
Deal found 7/14![KLM logo]()
$716
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Fri 8/76:10 am
ONT
- DUB
1 stop19h 35m
United Airlines
Mon 8/319:50 am
DUB
- ONT
2 stops43h 03m
United Airlines
Deal found 7/13![United Airlines logo]()
$727
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/267:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Wed 9/29:20 am
DUB
- ONT
2 stops35h 30m
United Airlines
Deal found 7/12![United Airlines logo]()
$732
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Mon 8/106:10 am
ONT
- BCN
1 stop22h 05m
United Airlines
Wed 8/193:15 pm
BCN
- ONT
1 stop16h 20m
United Airlines
Deal found 7/14![United Airlines logo]()
$736
This Air Canada deal was found by Cheapflights users on 7/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
ONT
- DUB
2 stops17h 45m
Multiple Airlines
Mon 8/319:50 am
DUB
- ONT
3 stops35h 00m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 7/11. 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 10/266:46 am
ONT
- FCO
1 stop16h 59m
United Airlines
Wed 11/119:55 am
FCO
- ONT
2 stops19h 11m
United Airlines
Deal found 7/11![United Airlines logo]()
$745
This KLM deal was found by Cheapflights users on 7/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/257:05 am
ONT
- FCO
1 stop17h 10m
KLM
Fri 11/66:10 am
FCO
- ONT
2 stops25h 33m
KLM
Deal found 7/12![KLM logo]()
$746
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Tue 10/205:00 am
ONT
- MAD
2 stops16h 50m
United Airlines
Fri 10/2312:45 pm
MAD
- ONT
3 stops41h 13m
United Airlines
Deal found 7/12![United Airlines logo]()
$746
This United Airlines deal was found by Cheapflights users on 7/14. 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 9/191:18 pm
ONT
- BCN
2 stops34h 42m
United Airlines
Mon 9/283:15 pm
BCN
- ONT
1 stop16h 34m
United Airlines
Deal found 7/14![United Airlines logo]()
$746
This Air France deal was found by Cheapflights users on 7/11. 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 Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:18 pm
ONT
- FCO
1 stop15h 02m
Multiple Airlines
Wed 11/111:30 pm
FCO
- ONT
1 stop17h 44m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$747
This United Airlines deal was found by Cheapflights users on 7/13. 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 10/145:00 am
ONT
- MAD
2 stops18h 05m
United Airlines
Fri 10/2312:45 pm
MAD
- ONT
2 stops43h 04m
United Airlines
Deal found 7/13![United Airlines logo]()
$748
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 July 15, 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 July 15, 2026.
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/267:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Wed 9/29:20 am
DUB
- ONT
2 stops35h 30m
United Airlines
Deal found 7/12![United Airlines logo]()
$732
This KLM deal was found by Cheapflights users on 7/13. 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.
Wed 10/287:05 am
ONT
- FCO
2 stops18h 30m
KLM
Tue 11/101:30 pm
FCO
- ONT
1 stop17h 44m
KLM
Deal found 7/13![KLM logo]()
$751
This Delta deal was found by Cheapflights users on 7/13. 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.
Mon 8/2410:00 pm
ONT
- DUB
1 stop26h 45m
Delta
Mon 8/315:55 am
DUB
- ONT
2 stops19h 26m
Delta
Deal found 7/13![Delta logo]()
$761
This British Airways deal was found by Cheapflights users on 7/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/282:22 pm
ONT
- FCO
2 stops20h 58m
British Airways
Tue 11/107:25 am
FCO
- ONT
2 stops25h 32m
British Airways
Deal found 7/13![British Airways logo]()
$764
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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 8/19:20 pm
ONT
- FCO
1 stop30h 55m
Alaska Airlines
Mon 8/103:15 pm
FCO
- ONT
1 stop28h 59m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$871
This Justfly.com deal was found by Cheapflights users on 7/11. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:00 am
ONT
- PMI
2 stops27h 15m
Multiple Airlines
Wed 9/27:45 am
PMI
- ONT
2 stops23h 52m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$885
This JetBlue deal was found by Cheapflights users on 7/11. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/611:59 pm
ONT
- DUB
1 stop25h 01m
JetBlue
Thu 8/2011:30 am
DUB
- ONT
1 stop19h 08m
JetBlue
Deal found 7/11![JetBlue logo]()
$891
This Qatar Airways deal was found by Cheapflights users on 7/14. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:02 am
ONT
- IST
2 stops50h 33m
Qatar Airways
Mon 9/148:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 7/14![Qatar Airways logo]()
$1,084
This Turkish Airlines deal was found by Cheapflights users on 7/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/129:10 pm
ONT
- CDG
2 stops27h 50m
Turkish Airlines
Sun 9/276:05 pm
CDG
- ONT
2 stops59h 08m
Turkish Airlines
Deal found 7/14![Turkish Airlines logo]()
$1,130
This Etihad Airways deal was found by Cheapflights users on 7/14. 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 Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1811:59 pm
ONT
- IST
2 stops50h 36m
Etihad Airways
Fri 9/181:50 pm
IST
- ONT
2 stops40h 23m
Etihad Airways
Deal found 7/14![Etihad Airways logo]()
$1,176
This Iberia deal was found by Cheapflights users on 7/14. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:05 am
ONT
- FRA
1 stop16h 40m
Iberia
Tue 8/186:30 am
FRA
- ONT
2 stops25h 29m
Iberia
Deal found 7/14![Iberia logo]()
$1,207
This Air Serbia deal was found by Cheapflights users on 7/10. 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 Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:10 pm
ONT
- ATH
2 stops31h 40m
Air Serbia
Sun 9/209:20 pm
ATH
- ONT
2 stops32h 53m
Air Serbia
Deal found 7/10![Air Serbia logo]()
$1,499
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Mon 8/101:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Wed 8/262:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 7/14![United Airlines logo]()
$769
This KLM deal was found by Cheapflights users on 7/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/127:05 am
ONT
- FCO
1 stop15h 30m
KLM
Fri 8/211:10 pm
FCO
- ONT
1 stop17h 42m
KLM
Deal found 7/10![KLM logo]()
$777
This British Airways deal was found by Cheapflights users on 7/13. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Thu 10/223:55 pm
MAD
- ONT
1 stop16h 57m
British Airways
Deal found 7/13![British Airways logo]()
$779
This Delta deal was found by Cheapflights users on 7/12. 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.
Sat 8/112:00 pm
ONT
- FRA
1 stop35h 55m
Delta
Fri 8/2110:40 am
FRA
- ONT
1 stop16h 50m
Delta
Deal found 7/12![Delta logo]()
$849
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/111:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Wed 8/192:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 7/10![United Airlines logo]()
$777
This British Airways deal was found by Cheapflights users on 7/11. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:33 pm
ONT
- FCO
1 stop14h 32m
British Airways
Wed 8/261:10 pm
FCO
- ONT
1 stop18h 49m
British Airways
Deal found 7/11![British Airways logo]()
$786
This KLM deal was found by Cheapflights users on 7/10. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:05 am
ONT
- FCO
1 stop17h 10m
KLM
Thu 11/121:30 pm
FCO
- ONT
1 stop17h 44m
KLM
Deal found 7/10![KLM logo]()
$794
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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.
Sun 10/252:13 pm
ONT
- LHR
1 stop15h 07m
Alaska Airlines
Sun 11/82:45 pm
LHR
- ONT
1 stop16h 09m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$927
This Delta deal was found by Cheapflights users on 7/14. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:20 am
ONT
- FCO
1 stop18h 50m
Delta
Thu 10/156:30 am
FCO
- ONT
2 stops25h 13m
Delta
Deal found 7/14![Delta logo]()
$856
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/255:00 am
ONT
- PMI
2 stops25h 20m
United Airlines
Fri 10/210:10 am
PMI
- ONT
2 stops21h 49m
United Airlines
Deal found 7/10![United Airlines logo]()
$811
This KLM deal was found by Cheapflights users on 7/11. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:05 am
ONT
- DUB
1 stop17h 40m
KLM
Mon 8/1011:00 am
DUB
- ONT
1 stop15h 30m
KLM
Deal found 7/11![KLM logo]()
$839
This Alaska Airlines deal was found by Cheapflights users on 7/11. 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.
Wed 10/2111:13 am
ONT
- LHR
1 stop19h 52m
Alaska Airlines
Sun 11/82:45 pm
LHR
- ONT
1 stop16h 09m
Alaska Airlines
Deal found 7/11![Alaska Airlines logo]()
$927
This Turkish Airlines deal was found by Cheapflights users on 7/13. 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.
Tue 9/299:10 pm
ONT
- BCN
2 stops41h 05m
Multiple Airlines
Tue 10/137:40 am
BCN
- ONT
2 stops25h 05m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,036
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Fri 10/165:00 am
ONT
- MAD
2 stops16h 50m
United Airlines
Tue 10/205:55 am
MAD
- ONT
2 stops20h 46m
United Airlines
Deal found 7/14![United Airlines logo]()
$816
This JetBlue deal was found by Cheapflights users on 7/10. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/109:10 pm
ONT
- LHR
1 stop15h 35m
JetBlue
Mon 9/1411:55 am
LHR
- ONT
1 stop16h 18m
JetBlue
Deal found 7/10![JetBlue logo]()
$1,095
This Delta deal was found by Cheapflights users on 7/12. 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 7/2810:00 pm
ONT
- FRA
2 stops25h 40m
Delta
Mon 8/172:15 pm
FRA
- ONT
2 stops35h 09m
Delta
Deal found 7/12![Delta logo]()
$911
This British Airways deal was found by Cheapflights users on 7/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:05 am
ONT
- ATH
1 stop18h 40m
British Airways
Sun 8/232:00 pm
ATH
- ONT
1 stop18h 59m
British Airways
Deal found 7/14![British Airways logo]()
$922
This Qatar Airways deal was found by Cheapflights users on 7/11. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:00 pm
ONT
- IST
2 stops32h 20m
Qatar Airways
Tue 10/68:05 pm
IST
- ONT
2 stops31h 58m
Qatar Airways
Deal found 7/11![Qatar Airways logo]()
$1,121
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated July 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated July 15, 2026 and is based on user searches.
This Ticket deal was found by Cheapflights users on 7/14. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:00 pm
ONT
- FCO
1 stop37h 50m
KLM
Wed 8/199:45 am
FCO
- ONT
1 stop19h 08m
KLM
Deal found 7/14![KLM logo]()
$716
This American Airlines deal was found by Cheapflights users on 7/13. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:33 pm
ONT
- DUB
1 stop13h 12m
American Airlines
Thu 8/2012:40 pm
DUB
- ONT
1 stop14h 07m
American Airlines
Deal found 7/13![American Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 7/13. 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.
Fri 8/76:10 am
ONT
- DUB
1 stop19h 35m
United Airlines
Mon 8/319:50 am
DUB
- ONT
2 stops43h 03m
United Airlines
Deal found 7/13![United Airlines logo]()
$727
This Mytrip deal was found by Cheapflights users on 7/13. 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 8/95:00 am
ONT
- FCO
2 stops19h 15m
Air Canada
Fri 8/2811:30 am
FCO
- ONT
2 stops42h 23m
Air Canada
Deal found 7/13![Air Canada logo]()
$760
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Mon 8/106:10 am
ONT
- BCN
1 stop22h 05m
United Airlines
Wed 8/193:15 pm
BCN
- ONT
1 stop16h 20m
United Airlines
Deal found 7/14![United Airlines logo]()
$736
This United Airlines deal was found by Cheapflights users on 7/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:10 am
ONT
- FCO
1 stop16h 45m
United Airlines
Tue 8/2511:30 am
FCO
- ONT
2 stops41h 31m
United Airlines
Deal found 7/10![United Airlines logo]()
$756
This flugladen.de deal was found by Cheapflights users on 7/10. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:04 pm
ONT
- FCO
1 stop16h 11m
Alaska Airlines
Tue 8/253:15 pm
FCO
- ONT
1 stop28h 49m
Alaska Airlines
Deal found 7/10![Alaska Airlines logo]()
$758
This United Airlines deal was found by Cheapflights users on 7/14. 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.
Thu 8/137:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Wed 8/199:20 am
DUB
- ONT
2 stops19h 33m
United Airlines
Deal found 7/14![United Airlines logo]()
$756
This United Airlines deal was found by Cheapflights users on 7/12. 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 8/171:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Tue 8/2511:30 am
FCO
- ONT
2 stops41h 31m
United Airlines
Deal found 7/12![United Airlines logo]()
$757
This Air Canada deal was found by Cheapflights users on 7/11. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:00 am
ONT
- DUB
2 stops17h 45m
Multiple Airlines
Mon 8/319:50 am
DUB
- ONT
3 stops35h 00m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$739
This United Airlines deal was found by Cheapflights users on 7/11. 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 8/245:00 am
ONT
- DUB
2 stops18h 45m
United Airlines
Mon 8/319:50 am
DUB
- ONT
2 stops20h 45m
United Airlines
Deal found 7/11![United Airlines logo]()
$754
This United Airlines deal was found by Cheapflights users on 7/12. 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.
Wed 8/267:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Wed 9/29:20 am
DUB
- ONT
2 stops35h 30m
United Airlines
Deal found 7/12![United Airlines logo]()
$732
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 July 15, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated July 15, 2026.
This Kiwi.com deal was found by Cheapflights users on 7/10. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/35:05 pm
ONT
- LHR
3 stops31h 00m
Multiple Airlines
Deal found 7/10![Multiple Airlines logo]()
$291
This Cheapflightsfares deal was found by Cheapflights users on 7/11. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/47:00 am
ONT
- ATH
1 stop18h 45m
British Airways
Deal found 7/11![British Airways logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/141:05 pm
ONT
- LHR
1 stop13h 25m
British Airways
Deal found 7/12![British Airways logo]()
$321
This oojo deal was found by Cheapflights users on 7/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/1510:47 am
ONT
- LHR
1 stop13h 28m
British Airways
Deal found 7/12![British Airways logo]()
$322
This Trip.com deal was found by Cheapflights users on 7/15. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:05 am
ONT
- LHR
1 stop15h 20m
Virgin Atlantic
Deal found 7/15![Virgin Atlantic logo]()
$324
This American Airlines deal was found by Cheapflights users on 7/11. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/82:59 pm
ONT
- LHR
1 stop13h 01m
American Airlines
Deal found 7/11![American Airlines logo]()
$326
This Cheapflightsfares deal was found by Cheapflights users on 7/13. 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.
Fri 7/3111:51 pm
ONT
- CDG
1 stop24h 24m
JetBlue
Deal found 7/13![JetBlue logo]()
$326
This Trip.com deal was found by Cheapflights users on 7/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:00 am
ONT
- FRA
2 stops22h 00m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$326
This KLM deal was found by Cheapflights users on 7/12. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:05 am
ONT
- ATH
1 stop17h 55m
KLM
Deal found 7/12![KLM logo]()
$327
This KAYAK deal was found by Cheapflights users on 7/10. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:18 pm
ONT
- LHR
1 stop13h 27m
JetBlue
Deal found 7/10![JetBlue logo]()
$328
This United Airlines deal was found by Cheapflights users on 7/15. 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.
Tue 10/134:07 pm
ONT
- LHR
1 stop14h 03m
United Airlines
Deal found 7/15![United Airlines logo]()
$329
This United Airlines deal was found by Cheapflights users on 7/13. 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 8/166:08 am
ONT
- ATH
2 stops18h 27m
United Airlines
Deal found 7/13![United Airlines logo]()
$330
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 July 15, 2026.
Round-trip from | $696 (United Airlines) |
|---|---|
One-way from | $291 (Kiwi.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,306 |
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 July 15, 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
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Wed 8/26
7:00 am-9:45 am
1 stop18h 45m
Dublin
Wed 9/2
9:20 am-12:50 pm
2 stops35h 30m
$732
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 10/28
7:05 am-9:35 am
2 stops18h 30m
Rome Fiumicino
Tue 11/10
1:30 pm-10:14 pm
1 stop17h 44m
$751
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Mon 8/24
10:00 pm-8:45 am
1 stop26h 45m
Dublin
Mon 8/31
5:55 am-5:21 pm
2 stops19h 26m
$761
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 10/28
2:22 pm-7:20 pm
2 stops20h 58m
Rome Fiumicino
Tue 11/10
7:25 am-11:57 pm
2 stops25h 32m
$764
Quickest round-trip
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 8/10
1:18 pm-12:20 pm
1 stop14h 02m
Rome Fiumicino
Wed 8/26
2:20 pm-8:53 pm
1 stop15h 33m
$769
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 8/12
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Fri 8/21
1:10 pm-9:52 pm
1 stop17h 42m
$777
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 8/11
1:18 pm-12:20 pm
1 stop14h 02m
Rome Fiumicino
Wed 8/19
2:20 pm-8:53 pm
1 stop15h 33m
$777
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Mon 10/12
10:25 am-9:05 am
1 stop13h 40m
Madrid Barajas
Thu 10/22
3:55 pm-11:52 pm
1 stop16h 57m
$779
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 8/10
12:33 pm-12:05 pm
1 stop14h 32m
Rome Fiumicino
Wed 8/26
1:10 pm-10:59 pm
1 stop18h 49m
$786
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 10/28
7:05 am-8:15 am
1 stop17h 10m
Rome Fiumicino
Thu 11/12
1:30 pm-10:14 pm
1 stop17h 44m
$794
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-LHR
ONT-ATH
ONT-MAD
ONT-FRA
ONT-FCO
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-LHR
ONT-ATH
ONT-MAD
ONT-FRA
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 January is currently the most expensive (average of $538). 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 July 15, 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
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Comfort
7.8
Food
7.2
Overall
7.8
Crew
8.5
Entertainment
7.8
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 July 15, 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 7 airlines flying from Ontario to Europe
Discover the top 7 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 July 15, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$469 | Average$646 | FlexibilityNo cancel fee | On-time72% | |
| Cheapest$504 | Average$880 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$511 | Average$687 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$515 | Average$956 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$535 | Average$1,098 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$620 | Average$650 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$657 | Average$1,321 | FlexibilityNo cancel fee | On-time75% |