$225+ 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 9/15. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Jul 23 — Jul 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
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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 June 23, 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 June 23, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/156:00 am
ONT
- MAD
2 stops21h 15m
Virgin Atlantic
Sun 8/309:50 am
MAD
- ONT
2 stops22h 44m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$341
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:00 am
ONT
- MAD
1 stop17h 55m
Virgin Atlantic
Sat 12/1211:55 am
MAD
- ONT
2 stops20h 53m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$410
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/1712:00 pm
ONT
- LHR
1 stop15h 40m
Virgin Atlantic
Tue 12/2212:20 pm
LHR
- ONT
1 stop18h 23m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$429
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:35 pm
ONT
- CDG
2 stops21h 25m
Virgin Atlantic
Wed 9/167:30 am
CDG
- ONT
2 stops24h 10m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$513
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1011:54 am
ONT
- CDG
1 stop16h 56m
Virgin Atlantic
Sun 9/1311:00 am
CDG
- ONT
2 stops21h 47m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$622
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Thu 10/84:03 pm
ONT
- BCN
1 stop37h 17m
United Airlines
Wed 10/2112:15 pm
BCN
- ONT
2 stops41h 43m
United Airlines
Deal found 6/21![United Airlines logo]()
$687
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 10/104:03 pm
ONT
- BCN
1 stop37h 17m
United Airlines
Fri 10/161:15 pm
BCN
- ONT
2 stops56h 03m
United Airlines
Deal found 6/22![United Airlines logo]()
$692
This United Airlines deal was found by Cheapflights users on 6/21. 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 10/21:52 pm
ONT
- MAD
2 stops31h 58m
United Airlines
Sun 10/1112:45 pm
MAD
- ONT
2 stops41h 13m
United Airlines
Deal found 6/21![United Airlines logo]()
$695
This United Airlines deal was found by Cheapflights users on 6/21. 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 9/217:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Mon 10/512:45 pm
MAD
- ONT
2 stops43h 04m
United Airlines
Deal found 6/21![United Airlines logo]()
$696
This Gotogate deal was found by Cheapflights users on 6/19. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/81:24 pm
ONT
- BCN
2 stops33h 36m
Air Canada
Wed 10/2112:15 pm
BCN
- ONT
2 stops41h 43m
Air Canada
Deal found 6/19![Air Canada logo]()
$696
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Thu 10/111:10 am
ONT
- BCN
1 stop18h 10m
United Airlines
Tue 10/63:15 pm
BCN
- ONT
1 stop16h 34m
United Airlines
Deal found 6/22![United Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Sun 12/66:53 pm
ONT
- BCN
2 stops29h 07m
United Airlines
Thu 12/1010:30 am
BCN
- ONT
2 stops35h 03m
United Airlines
Deal found 6/21![United Airlines logo]()
$711
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 June 23, 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 June 23, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:05 am
ONT
- MAD
1 stop20h 10m
Virgin Atlantic
Sun 8/309:50 am
MAD
- ONT
2 stops22h 44m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$341
This United Airlines deal was found by Cheapflights users on 6/22. 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.
Sat 10/104:03 pm
ONT
- BCN
1 stop37h 17m
United Airlines
Fri 10/161:15 pm
BCN
- ONT
2 stops56h 03m
United Airlines
Deal found 6/22![United Airlines logo]()
$692
This KLM deal was found by Cheapflights users on 6/22. 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.
Mon 10/269:55 am
ONT
- FCO
2 stops17h 05m
KLM
Fri 11/136:10 am
FCO
- ONT
2 stops19h 02m
KLM
Deal found 6/22![KLM logo]()
$741
This British Airways deal was found by Cheapflights users on 6/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:33 pm
ONT
- FCO
1 stop14h 32m
British Airways
Wed 8/261:10 pm
FCO
- ONT
1 stop18h 49m
British Airways
Deal found 6/23![British Airways logo]()
$786
This Delta deal was found by Cheapflights users on 6/19. 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.
Fri 8/147:05 am
ONT
- ATH
1 stop17h 55m
Delta
Thu 8/2712:10 pm
ATH
- ONT
1 stop19h 42m
Delta
Deal found 6/19![Delta logo]()
$887
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/1411:13 am
ONT
- FCO
1 stop17h 02m
Alaska Airlines
Fri 10/233:15 pm
FCO
- ONT
1 stop17h 30m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$928
This British Airways deal was found by Cheapflights users on 6/23. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:00 am
ONT
- FRA
1 stop17h 45m
Multiple Airlines
Wed 8/2612:10 pm
FRA
- ONT
2 stops19h 49m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$986
This KAYAK deal was found by Cheapflights users on 6/23. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1611:59 pm
ONT
- CDG
1 stop24h 16m
JetBlue
Wed 8/2612:25 pm
CDG
- ONT
1 stop19h 12m
JetBlue
Deal found 6/23![JetBlue logo]()
$1,024
This Qatar Airways deal was found by Cheapflights users on 6/22. 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 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
Mon 9/148:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 6/22![Qatar Airways logo]()
$1,038
This KAYAK deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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.
Mon 9/71:56 pm
ONT
- IST
2 stops21h 29m
Lufthansa
Fri 9/185:40 am
IST
- ONT
2 stops22h 31m
Lufthansa
Deal found 6/18![Lufthansa logo]()
$1,153
This Turkish Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 9/159:10 pm
ONT
- IST
1 stop34h 05m
Turkish Airlines
Tue 9/296:40 pm
IST
- ONT
1 stop35h 33m
Turkish Airlines
Deal found 6/21![Turkish Airlines logo]()
$1,162
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Thu 11/126:00 am
ONT
- MAD
2 stops16h 45m
United Airlines
Wed 11/1811:00 am
MAD
- ONT
2 stops18h 56m
United Airlines
Deal found 6/21![United Airlines logo]()
$716
This KLM deal was found by Cheapflights users on 6/22. 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.
Mon 10/127:00 am
ONT
- ATH
1 stop16h 20m
KLM
Thu 10/159:45 am
ATH
- ONT
1 stop18h 33m
KLM
Deal found 6/22![KLM logo]()
$803
This British Airways deal was found by Cheapflights users on 6/19. 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.
Sat 10/310:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Thu 10/2212:40 pm
MAD
- ONT
1 stop16h 24m
British Airways
Deal found 6/19![British Airways logo]()
$814
This United Airlines deal was found by Cheapflights users on 6/19. 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.
Mon 8/241:56 pm
ONT
- BCN
1 stop15h 24m
United Airlines
Mon 9/710:25 am
BCN
- ONT
2 stops21h 34m
United Airlines
Deal found 6/19![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 6/21. 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.
Tue 8/116:08 am
ONT
- MAD
2 stops16h 57m
United Airlines
Thu 8/208:20 am
MAD
- ONT
2 stops18h 51m
United Airlines
Deal found 6/21![United Airlines logo]()
$747
This KLM deal was found by Cheapflights users on 6/20. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 am
ONT
- FCO
1 stop15h 30m
KLM
Mon 8/241:10 pm
FCO
- ONT
1 stop17h 42m
KLM
Deal found 6/20![KLM logo]()
$827
This Delta deal was found by Cheapflights users on 6/20. 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.
Sun 8/96:00 am
ONT
- PMI
2 stops31h 15m
Delta
Wed 8/1910:55 am
PMI
- ONT
2 stops20h 50m
Delta
Deal found 6/20![Delta logo]()
$914
This British Airways deal was found by Cheapflights users on 6/20. 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.
Sun 8/27:00 am
ONT
- ATH
1 stop18h 45m
British Airways
Wed 8/192:00 pm
ATH
- ONT
1 stop18h 59m
British Airways
Deal found 6/20![British Airways logo]()
$852
This KLM deal was found by Cheapflights users on 6/19. 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.
Thu 8/137:05 am
ONT
- FCO
1 stop15h 30m
KLM
Fri 8/211:10 pm
FCO
- ONT
1 stop17h 42m
KLM
Deal found 6/19![KLM logo]()
$827
This Icelandair deal was found by Cheapflights users on 6/23. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:55 am
ONT
- LHR
2 stops17h 00m
Multiple Airlines
Wed 8/191:05 pm
LHR
- ONT
2 stops16h 55m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,002
This Delta deal was found by Cheapflights users on 6/20. 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.
Tue 8/1111:56 am
ONT
- PMI
2 stops37h 09m
Delta
Tue 8/187:15 am
PMI
- ONT
2 stops18h 09m
Delta
Deal found 6/20![Delta logo]()
$916
This United Airlines deal was found by Cheapflights users on 6/22. 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.
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 6/22![United Airlines logo]()
$768
This British Airways deal was found by Cheapflights users on 6/22. 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.
Wed 8/127:05 am
ONT
- FRA
1 stop16h 40m
British Airways
Mon 8/3110:55 am
FRA
- ONT
1 stop21h 04m
British Airways
Deal found 6/22![British Airways logo]()
$858
This Qatar Airways deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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.
Mon 8/3112:00 pm
ONT
- IST
2 stops37h 55m
Qatar Airways
Mon 9/148:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 6/18![Qatar Airways logo]()
$1,041
This JetBlue deal was found by Cheapflights users on 6/22. 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 JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:10 pm
ONT
- LHR
1 stop15h 35m
JetBlue
Sat 9/198:15 am
LHR
- ONT
1 stop19h 58m
JetBlue
Deal found 6/22![JetBlue logo]()
$1,078
This United Airlines deal was found by Cheapflights users on 6/23. 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 10/276:46 am
ONT
- MAD
2 stops16h 59m
United Airlines
Thu 10/2911:00 am
MAD
- ONT
2 stops19h 53m
United Airlines
Deal found 6/23![United Airlines logo]()
$768
This Delta deal was found by Cheapflights users on 6/19. 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.
Fri 10/910:59 pm
ONT
- FCO
1 stop23h 36m
Delta
Sun 11/16:10 am
FCO
- ONT
2 stops19h 02m
Delta
Deal found 6/19![Delta logo]()
$952
This Icelandair deal was found by Cheapflights users on 6/23. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1110:55 am
ONT
- LHR
2 stops17h 00m
Multiple Airlines
Fri 8/219:25 pm
LHR
- ONT
2 stops27h 00m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,052
This Turkish Airlines deal was found by Cheapflights users on 6/18. Clicking the “Pick Dates” 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 8/3111:50 pm
ONT
- IST
1 stop19h 40m
Turkish Airlines
Mon 9/146:40 pm
IST
- ONT
1 stop35h 33m
Turkish Airlines
Deal found 6/18![Turkish Airlines logo]()
$1,162
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated June 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated June 23, 2026 and is based on user searches.
This Iberia deal was found by Cheapflights users on 6/22. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/77:00 am
ONT
- ATH
1 stop18h 45m
Iberia
Tue 9/12:00 pm
ATH
- ONT
1 stop18h 59m
Iberia
Deal found 6/22![Iberia logo]()
$846
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:02 am
ONT
- FCO
1 stop22h 13m
Alaska Airlines
Wed 8/193:15 pm
FCO
- ONT
1 stop17h 09m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$797
This United Airlines deal was found by Cheapflights users on 6/23. 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 7/81:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Sat 8/222:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 6/23![United Airlines logo]()
$827
This Alaska Airlines deal was found by Cheapflights users on 6/23. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/119:20 pm
ONT
- FCO
1 stop30h 55m
Alaska Airlines
Fri 8/213:15 pm
FCO
- ONT
1 stop17h 09m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$803
This KLM deal was found by Cheapflights users on 6/23. 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.
Sun 7/127:05 am
ONT
- FCO
1 stop15h 30m
KLM
Thu 8/201:10 pm
FCO
- ONT
1 stop17h 42m
KLM
Deal found 6/23![KLM logo]()
$777
This British Airways deal was found by Cheapflights users on 6/20. 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.
Sun 7/197:00 am
ONT
- ATH
1 stop18h 45m
British Airways
Thu 9/32:05 pm
ATH
- ONT
1 stop18h 54m
British Airways
Deal found 6/20![British Airways logo]()
$781
This Iberia deal was found by Cheapflights users on 6/19. 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.
Sun 7/197:00 am
ONT
- ATH
1 stop18h 45m
Iberia
Thu 9/32:05 pm
ATH
- ONT
1 stop18h 54m
Iberia
Deal found 6/19![Iberia logo]()
$782
This United Airlines deal was found by Cheapflights users on 6/19. 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 7/191:50 pm
ONT
- ATH
3 stops35h 20m
United Airlines
Fri 9/412:35 pm
ATH
- ONT
1 stop20h 00m
United Airlines
Deal found 6/19![United Airlines logo]()
$790
This United Airlines deal was found by Cheapflights users on 6/19. 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 7/191:50 pm
ONT
- ATH
3 stops35h 20m
United Airlines
Sat 9/512:35 pm
ATH
- ONT
1 stop20h 00m
United Airlines
Deal found 6/19![United Airlines logo]()
$850
This United Airlines deal was found by Cheapflights users on 6/19. 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 7/211:50 pm
ONT
- ATH
2 stops34h 45m
United Airlines
Fri 9/412:35 pm
ATH
- ONT
1 stop20h 00m
United Airlines
Deal found 6/19![United Airlines logo]()
$792
This KLM deal was found by Cheapflights users on 6/22. 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.
Sun 7/267:05 am
ONT
- ATH
1 stop17h 55m
KLM
Thu 8/2012:10 pm
ATH
- ONT
1 stop19h 42m
KLM
Deal found 6/22![KLM logo]()
$842
This BusinessClass deal was found by Cheapflights users on 6/23. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:18 pm
ONT
- FCO
1 stop14h 02m
Lufthansa
Wed 8/192:20 pm
FCO
- ONT
1 stop15h 33m
Lufthansa
Deal found 6/23![Lufthansa logo]()
$829
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 June 23, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated June 23, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/157:05 am
ONT
- CDG
1 stop14h 05m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$225
This Virgin Atlantic deal was found by Cheapflights users on 6/23. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:05 am
ONT
- CDG
2 stops16h 35m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$254
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:00 pm
ONT
- FCO
3 stops39h 55m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$264
This Kiwi.com deal was found by Cheapflights users on 6/20. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:00 pm
ONT
- FCO
3 stops22h 55m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$291
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2910:49 am
ONT
- LHR
2 stops25h 31m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$293
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ONT
- LHR
2 stops30h 20m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$320
This oojo deal was found by Cheapflights users on 6/21. 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.
Fri 7/315:34 am
ONT
- FRA
1 stop18h 11m
British Airways
Deal found 6/21![British Airways logo]()
$320
This Cheapflightsfares deal was found by Cheapflights users on 6/21. 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.
Wed 7/155:34 am
ONT
- ATH
1 stop20h 11m
British Airways
Deal found 6/21![British Airways logo]()
$320
This Trip.com deal was found by Cheapflights users on 6/19. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/226:00 am
ONT
- LHR
2 stops21h 55m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$321
This Cheapflightsfares deal was found by Cheapflights users on 6/20. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/135:34 am
ONT
- ATH
1 stop20h 11m
British Airways
Deal found 6/20![British Airways logo]()
$321
This oojo deal was found by Cheapflights users on 6/19. 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 7/285:34 am
ONT
- FRA
1 stop18h 11m
British Airways
Deal found 6/19![British Airways logo]()
$323
This Trip.com deal was found by Cheapflights users on 6/20. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/217:05 am
ONT
- LHR
1 stop16h 10m
Virgin Atlantic
Deal found 6/20![Virgin Atlantic logo]()
$324
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 June 23, 2026.
Round-trip from | $341 (Virgin Atlantic) |
|---|---|
One-way from | $225 (Virgin Atlantic) |
Popular in | June |
Cheapest in | February |
Average price | $1,367 |
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 June 23, 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
Sat 8/15
7:05 am-12:15 pm
1 stop20h 10m
Madrid Barajas
Sun 8/30
9:50 am-11:34 pm
2 stops22h 44m
$341
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Sat 10/10
4:03 pm-2:20 pm
1 stop37h 17m
Barcelona-El Prat
Fri 10/16
1:15 pm-12:18 pm
2 stops56h 03m
$692
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Thu 11/12
6:00 am-7:45 am
2 stops16h 45m
Madrid Barajas
Wed 11/18
11:00 am-8:56 pm
2 stops18h 56m
$716
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 10/26
9:55 am-11:00 am
2 stops17h 05m
Rome Fiumicino
Fri 11/13
6:10 am-4:12 pm
2 stops19h 02m
$741
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Mon 8/24
1:56 pm-2:20 pm
1 stop15h 24m
Barcelona-El Prat
Mon 9/7
10:25 am-10:59 pm
2 stops21h 34m
$741
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 8/11
6:08 am-8:05 am
2 stops16h 57m
Madrid Barajas
Thu 8/20
8:20 am-6:11 pm
2 stops18h 51m
$747
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
$768
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 10/27
6:46 am-7:45 am
2 stops16h 59m
Madrid Barajas
Thu 10/29
11:00 am-10:53 pm
2 stops19h 53m
$768
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 8/19
12:33 pm-12:05 pm
1 stop14h 32m
Rome Fiumicino
Wed 8/26
1:10 pm-10:59 pm
1 stop18h 49m
$786
OntarioAthens
ONT - ATH
ONTATH
Ontario
Mon 10/12
7:00 am-9:20 am
1 stop16h 20m
Athens Eleftherios V.
Thu 10/15
9:45 am-6:18 pm
1 stop18h 33m
$803
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-CDG
ONT-FCO
ONT-LHR
ONT-FRA
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-CDG
ONT-FCO
ONT-LHR
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 June is currently the most expensive (average of $891). 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 June 23, 2026.
See what other customers who have flown with KLM,Delta, andUnited 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.
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Entertainment
7.2
Food
7.3
Comfort
7.7
Overall
7.8
Boarding
7.8
Crew
8.4
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
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 June 23, 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 June 23, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$702 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$497 | Average$687 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$876 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$902 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$973 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% |