$294+ 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 7/22. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Jul 18 — Jul 251
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 18, 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 18, 2026.
This KLM deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/97:05 am
ONT
- MXP
1 stop17h 20m
KLM
Tue 8/2511:40 am
MXP
- ONT
1 stop17h 13m
KLM
Deal found 6/17![KLM logo]()
$703
This KLM deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am
ONT
- MXP
1 stop18h 55m
KLM
Tue 12/81:05 pm
MXP
- ONT
1 stop18h 09m
KLM
Deal found 6/14![KLM logo]()
$712
This United Airlines deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/26:02 am
ONT
- MXP
2 stops16h 28m
United Airlines
Tue 12/811:20 am
MXP
- ONT
2 stops19h 01m
United Airlines
Deal found 6/14![United Airlines logo]()
$714
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:00 am
ONT
- MXP
2 stops17h 30m
United Airlines
Wed 11/253:05 pm
MXP
- ONT
1 stop16h 21m
United Airlines
Deal found 6/13![United Airlines logo]()
$716
This United Airlines deal was found by Cheapflights users on 6/15. 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 12/11:00 pm
ONT
- MXP
2 stops18h 40m
United Airlines
Tue 12/811:20 am
MXP
- ONT
2 stops20h 46m
United Airlines
Deal found 6/15![United Airlines logo]()
$721
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 am
ONT
- MXP
1 stop17h 20m
Delta
Wed 8/2611:40 am
MXP
- ONT
1 stop17h 13m
Delta
Deal found 6/18![Delta logo]()
$737
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:00 pm
ONT
- MXP
1 stop36h 25m
Delta
Fri 8/2111:40 am
MXP
- ONT
1 stop32h 02m
Delta
Deal found 6/13![Delta logo]()
$738
This Air France deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 am
ONT
- MXP
1 stop17h 20m
Multiple Airlines
Wed 8/2611:40 am
MXP
- ONT
1 stop17h 13m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$740
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/57:05 am
ONT
- MXP
1 stop17h 20m
Delta
Tue 8/2511:40 am
MXP
- ONT
1 stop17h 13m
Delta
Deal found 6/13![Delta logo]()
$747
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/185:00 am
ONT
- MXP
2 stops17h 30m
United Airlines
Wed 12/29:45 am
MXP
- ONT
2 stops20h 36m
United Airlines
Deal found 6/17![United Airlines logo]()
$748
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/107:05 am
ONT
- MXP
1 stop17h 20m
KLM
Fri 8/2811:40 am
MXP
- ONT
1 stop19h 12m
KLM
Deal found 6/17![KLM logo]()
$751
This Delta deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/87:00 am
ONT
- FCO
1 stop16h 15m
Delta
Tue 11/241:30 pm
FCO
- ONT
1 stop17h 44m
Delta
Deal found 6/16![Delta logo]()
$753
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 18, 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 18, 2026.
This KLM deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/412:00 pm
ONT
- MXP
1 stop14h 10m
KLM
Thu 11/121:05 pm
MXP
- ONT
1 stop18h 09m
KLM
Deal found 6/15![KLM logo]()
$756
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:59 pm
ONT
- FCO
1 stop24h 16m
Delta
Mon 11/1612:45 pm
FCO
- ONT
2 stops44h 03m
Delta
Deal found 6/17![Delta logo]()
$762
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
ONT
- MXP
2 stops42h 20m
United Airlines
Wed 10/1412:20 pm
MXP
- ONT
2 stops43h 39m
United Airlines
Deal found 6/17![United Airlines logo]()
$788
This Finnair deal was found by Cheapflights users on 6/15. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1710:25 am
ONT
- MAD
1 stop19h 00m
Multiple Airlines
Wed 9/304:25 pm
MAD
- ONT
2 stops26h 04m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$806
This British Airways deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/117:05 am
ONT
- ATH
1 stop18h 40m
British Airways
Wed 8/192:00 pm
ATH
- ONT
1 stop18h 59m
British Airways
Deal found 6/15![British Airways logo]()
$853
This Turkish Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/159:10 pm
ONT
- BCN
2 stops31h 20m
Turkish Airlines
Tue 9/297:40 am
BCN
- ONT
2 stops45h 33m
Turkish Airlines
Deal found 6/13![Turkish Airlines logo]()
$1,077
This Qatar Airways deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:00 pm
ONT
- IST
2 stops38h 15m
Qatar Airways
Tue 9/298:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 6/12![Qatar Airways logo]()
$1,132
This KLM deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am
ONT
- MAD
1 stop17h 55m
KLM
Fri 12/411:55 am
MAD
- ONT
1 stop19h 19m
KLM
Deal found 6/15![KLM logo]()
$764
This Delta deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/179:45 am
ONT
- MAD
2 stops22h 00m
Delta
Wed 9/306:00 am
MAD
- ONT
2 stops20h 20m
Delta
Deal found 6/15![Delta logo]()
$819
This United Airlines deal was found by Cheapflights users on 6/15. 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 11/241:00 pm
ONT
- ATH
2 stops26h 25m
United Airlines
Fri 11/276:40 am
ATH
- ONT
2 stops21h 07m
United Airlines
Deal found 6/15![United Airlines logo]()
$836
This British Airways deal was found by Cheapflights users on 6/14. 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.
Sun 9/278:25 am
ONT
- FRA
1 stop15h 20m
British Airways
Wed 10/1410:55 am
FRA
- ONT
1 stop21h 11m
British Airways
Deal found 6/14![British Airways logo]()
$889
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/227:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Wed 10/711:15 am
MAD
- ONT
2 stops20h 44m
United Airlines
Deal found 6/13![United Airlines logo]()
$838
This KLM deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am
ONT
- BCN
1 stop16h 40m
KLM
Thu 12/310:50 am
BCN
- ONT
1 stop20h 24m
KLM
Deal found 6/13![KLM logo]()
$873
This British Airways deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:25 am
ONT
- FRA
1 stop15h 20m
British Airways
Tue 9/2910:55 am
FRA
- ONT
1 stop20h 42m
British Airways
Deal found 6/13![British Airways logo]()
$891
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/36:00 am
ONT
- LHR
1 stop20h 00m
Delta
Thu 8/206:30 am
LHR
- ONT
2 stops23h 22m
Delta
Deal found 6/13![Delta logo]()
$894
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/221:56 pm
ONT
- ATH
2 stops34h 39m
United Airlines
Fri 9/412:10 pm
ATH
- ONT
2 stops41h 51m
United Airlines
Deal found 6/16![United Airlines logo]()
$841
This Delta deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/87:05 am
ONT
- MXP
1 stop17h 20m
Delta
Sun 8/2311:40 am
MXP
- ONT
1 stop19h 12m
Delta
Deal found 6/13![Delta logo]()
$895
This British Airways deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/67:06 am
ONT
- ATH
1 stop18h 39m
British Airways
Thu 8/202:05 pm
ATH
- ONT
1 stop18h 54m
British Airways
Deal found 6/13![British Airways logo]()
$903
This Icelandair deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:05 am
ONT
- FRA
2 stops17h 00m
Multiple Airlines
Tue 12/151:05 pm
FRA
- ONT
2 stops17h 30m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,104
This KLM deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:06 pm
ONT
- LHR
1 stop12h 54m
KLM
Wed 8/1910:55 am
LHR
- ONT
1 stop13h 29m
KLM
Deal found 6/15![KLM logo]()
$916
This Turkish Airlines deal was found by Cheapflights users on 6/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/309:10 pm
ONT
- CDG
2 stops54h 40m
Turkish Airlines
Sun 10/44:10 pm
CDG
- ONT
2 stops61h 03m
Turkish Airlines
Deal found 6/15![Turkish Airlines logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/115:00 am
ONT
- ATH
2 stops19h 05m
United Airlines
Mon 11/161:00 pm
ATH
- ONT
2 stops43h 26m
United Airlines
Deal found 6/17![United Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/1210:59 pm
ONT
- ATH
2 stops48h 36m
Delta
Mon 11/161:35 pm
ATH
- ONT
2 stops36h 37m
Delta
Deal found 6/17![Delta logo]()
$898
This British Airways deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/157:06 am
ONT
- ATH
1 stop18h 39m
British Airways
Tue 8/252:00 pm
ATH
- ONT
1 stop18h 59m
British Airways
Deal found 6/13![British Airways logo]()
$905
This British Airways deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/45:34 am
ONT
- FRA
1 stop18h 11m
Multiple Airlines
Wed 8/1912:10 pm
FRA
- ONT
2 stops19h 49m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$1,131
This KLM deal was found by Cheapflights users on 6/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/141:00 pm
ONT
- LHR
1 stop13h 00m
KLM
Sat 9/1910:55 am
LHR
- ONT
1 stop13h 38m
KLM
Deal found 6/12![KLM logo]()
$945
This Qatar Airways deal was found by Cheapflights users on 6/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/32:27 pm
ONT
- IST
2 stops35h 48m
Qatar Airways
Sun 9/138:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 6/15![Qatar Airways logo]()
$1,269
This United Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/151:56 pm
ONT
- FCO
1 stop14h 44m
United Airlines
Tue 9/296:50 am
FCO
- ONT
2 stops19h 51m
United Airlines
Deal found 6/13![United Airlines logo]()
$885
This British Airways deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:33 pm
ONT
- FRA
2 stops17h 27m
British Airways
Mon 8/2410:55 am
FRA
- ONT
1 stop16h 52m
British Airways
Deal found 6/17![British Airways logo]()
$928
This Turkish Airlines deal was found by Cheapflights users on 6/14. 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.
Wed 9/96:02 am
ONT
- BCN
2 stops32h 13m
Multiple Airlines
Sun 9/202:35 pm
BCN
- ONT
2 stops62h 38m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$1,137
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated June 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated June 18, 2026 and is based on user searches.
This Booking.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:00 am
ONT
- FRA
1 stop18h 50m
Multiple Airlines
Thu 7/911:55 am
FRA
- ONT
1 stop20h 56m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$876
This American Airlines deal was found by Cheapflights users on 6/15. 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 American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/147:00 am
ONT
- MXP
2 stops17h 05m
American Airlines
Thu 7/238:55 am
MXP
- ONT
2 stops22h 39m
American Airlines
Deal found 6/15![American Airlines logo]()
$861
This Iberia deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
Tue 8/182:00 pm
ATH
- ONT
1 stop18h 59m
Iberia
Deal found 6/16![Iberia logo]()
$853
This Orbitz deal was found by Cheapflights users on 6/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/207:00 am
ONT
- ATH
1 stop18h 45m
Iberia
Mon 7/278:50 pm
ATH
- ONT
2 stops35h 42m
Iberia
Deal found 6/15![Iberia logo]()
$872
This American Airlines deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/211:11 pm
ONT
- ATH
2 stops19h 54m
American Airlines
Tue 7/282:00 pm
ATH
- ONT
1 stop29h 29m
American Airlines
Deal found 6/13![American Airlines logo]()
$855
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:00 am
ONT
- ATH
2 stops23h 55m
United Airlines
Wed 7/296:45 am
ATH
- ONT
2 stops26h 06m
United Airlines
Deal found 6/18![United Airlines logo]()
$867
This British Airways deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/225:34 am
ONT
- FRA
1 stop18h 11m
British Airways
Sun 8/2310:55 am
FRA
- ONT
1 stop21h 04m
British Airways
Deal found 6/16![British Airways logo]()
$889
This KLM deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:05 am
ONT
- FCO
1 stop15h 30m
KLM
Thu 8/201:10 pm
FCO
- ONT
1 stop17h 42m
KLM
Deal found 6/14![KLM logo]()
$786
This Delta deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/267:05 am
ONT
- ATH
1 stop16h 55m
Delta
Tue 8/119:45 am
ATH
- ONT
1 stop34h 57m
Delta
Deal found 6/17![Delta logo]()
$845
This TravelUp deal was found by Cheapflights users on 6/14. 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 TravelUp is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/297:00 am
ONT
- FRA
1 stop16h 45m
Multiple Airlines
Wed 8/59:20 am
FRA
- ONT
2 stops18h 27m
Multiple Airlines
Deal found 6/14![Multiple Airlines logo]()
$883
This United Airlines deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/295:45 am
ONT
- MAD
2 stops18h 15m
United Airlines
Sun 9/1311:15 am
MAD
- ONT
2 stops33h 57m
United Airlines
Deal found 6/16![United Airlines logo]()
$888
This Iberia deal was found by Cheapflights users on 6/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/307:00 am
ONT
- FRA
1 stop16h 45m
Iberia
Thu 9/1710:55 am
FRA
- ONT
1 stop19h 14m
Iberia
Deal found 6/16![Iberia logo]()
$859
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 18, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated June 18, 2026.
This Trip.com deal was found by Cheapflights users on 6/15. 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.
Wed 7/2210:49 am
ONT
- LHR
2 stops17h 06m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/224:04 pm
ONT
- LHR
3 stops57h 31m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$298
This Kiwi.com deal was found by Cheapflights users on 6/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:00 pm
ONT
- MXP
3 stops40h 40m
Multiple Airlines
Deal found 6/15![Multiple Airlines logo]()
$313
This oojo deal was found by Cheapflights users on 6/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/1512:35 pm
ONT
- ATH
2 stops27h 50m
British Airways
Deal found 6/14![British Airways logo]()
$316
This Cheapflightsfares deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:34 am
ONT
- ATH
1 stop20h 11m
British Airways
Deal found 6/17![British Airways logo]()
$318
This Cheapflightsfares 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/65:34 am
ONT
- ATH
1 stop20h 11m
British Airways
Deal found 6/18![British Airways logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/158:25 am
ONT
- LHR
1 stop13h 55m
British Airways
Deal found 6/17![British Airways logo]()
$320
This Trip.com deal was found by Cheapflights users on 6/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:00 am
ONT
- LHR
2 stops21h 55m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$323
This oojo deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/142:22 pm
ONT
- LHR
1 stop14h 28m
British Airways
Deal found 6/15![British Airways logo]()
$325
This Expedia deal was found by Cheapflights users on 6/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/177:05 am
ONT
- ATH
1 stop18h 40m
British Airways
Deal found 6/15![British Airways logo]()
$326
This British Airways deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:59 pm
ONT
- ATH
2 stops20h 56m
British Airways
Deal found 6/17![British Airways logo]()
$328
This Trip.com deal was found by Cheapflights users on 6/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/236:00 am
ONT
- LHR
2 stops21h 55m
Multiple Airlines
Deal found 6/17![Multiple Airlines logo]()
$333
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 18, 2026.
Round-trip from | $703 (Delta) |
|---|---|
One-way from | $294 (Trip.com) |
Popular in | June |
Cheapest in | February |
Average price | $1,370 |
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 18, 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
OntarioMilan
ONT - MXP
ONTMXP
Ontario
Wed 11/4
12:00 pm-11:10 am
1 stop14h 10m
Milan Malpensa
Thu 11/12
1:05 pm-10:14 pm
1 stop18h 09m
$756
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 11/9
10:59 pm-8:15 am
1 stop24h 16m
Rome Fiumicino
Mon 11/16
12:45 pm-11:48 pm
2 stops44h 03m
$762
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Wed 11/25
7:00 am-9:55 am
1 stop17h 55m
Madrid Barajas
Fri 12/4
11:55 am-10:14 pm
1 stop19h 19m
$764
OntarioMilan
ONT - MXP
ONTMXP
Ontario
Tue 9/1
7:00 am-10:20 am
2 stops42h 20m
Milan Malpensa
Wed 10/14
12:20 pm-10:59 pm
2 stops43h 39m
$788
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Thu 9/17
10:25 am-2:25 pm
1 stop19h 00m
Madrid Barajas
Wed 9/30
4:25 pm-9:29 am
2 stops26h 04m
$806
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Thu 9/17
9:45 am-4:45 pm
2 stops22h 00m
Madrid Barajas
Wed 9/30
6:00 am-5:20 pm
2 stops20h 20m
$819
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 11/24
1:00 pm-1:25 am
2 stops26h 25m
Athens Eleftherios V.
Fri 11/27
6:40 am-5:47 pm
2 stops21h 07m
$836
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 9/22
7:00 am-8:05 am
2 stops16h 05m
Madrid Barajas
Wed 10/7
11:15 am-10:59 pm
2 stops20h 44m
$838
OntarioAthens
ONT - ATH
ONTATH
Ontario
Sat 8/22
1:56 pm-10:35 am
2 stops34h 39m
Athens Eleftherios V.
Fri 9/4
12:10 pm-8:01 pm
2 stops41h 51m
$841
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 8/11
7:05 am-11:45 am
1 stop18h 40m
Athens Eleftherios V.
Wed 8/19
2:00 pm-10:59 pm
1 stop18h 59m
$853
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-ATH
ONT-MAD
ONT-LHR
ONT-FCO
ONT-FRA
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-ATH
ONT-MAD
ONT-LHR
ONT-FCO
What is the cheapest month to book a flight from Ontario to Europe?
Currently, September is the cheapest month in which you can book a flight from Ontario to Europe (average of $251). Flying from Ontario to Europe in June is currently the most expensive (average of $575). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Europe
Get insights into the airlines that provide service to Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Europe. Reviews last updated June 18, 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.
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Boarding
7.8
Comfort
7.7
Entertainment
7.2
Crew
8.4
Food
7.3
Overall
7.8
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 18, 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 18, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$655 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$851 | 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% | |
| Cheapest$620 | Average$650 | FlexibilityNo cancel fee | On-time71% |