$329+ Cheap flights from Ontario (ONT) to Europe
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Apr 29 — May 61
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
Find cheap flights from Ontario to Europe with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Europe
Cheapest
Best
Last-minute
One-way
Cheapest flights from Ontario to EuropeExplore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
Explore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 30, 2026.
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/32:15 pm
ONT
- FCO
1 stop36h 50m
British Airways
Fri 8/211:10 pm
FCO
- ONT
1 stop18h 56m
British Airways
Deal found 3/25![British Airways logo]()
$678
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 10/2511:55 am
ONT
- IST
2 stops19h 00m
Delta
Tue 11/35:55 pm
IST
- ONT
2 stops33h 17m
Delta
Deal found 3/29![Delta logo]()
$704
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 11/246:10 am
ONT
- MAD
1 stop18h 10m
British Airways
Tue 12/812:40 pm
MAD
- ONT
1 stop17h 27m
British Airways
Deal found 3/25![British Airways logo]()
$709
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 8/187:00 am
ONT
- FCO
2 stops21h 15m
United Airlines
Tue 8/2511:30 am
FCO
- ONT
2 stops39h 49m
United Airlines
Deal found 3/28![United Airlines logo]()
$711
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 11/86:10 am
ONT
- FCO
1 stop19h 35m
British Airways
Sun 11/1511:00 am
FCO
- ONT
1 stop20h 23m
British Airways
Deal found 3/25![British Airways logo]()
$722
This American Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/181:00 pm
ONT
- FCO
2 stops18h 25m
American Airlines
Tue 8/251:10 pm
FCO
- ONT
1 stop18h 56m
American Airlines
Deal found 3/28![American Airlines logo]()
$723
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:05 am
ONT
- FCO
1 stop17h 35m
United Airlines
Wed 4/226:50 am
FCO
- ONT
2 stops19h 57m
United Airlines
Deal found 3/30![United Airlines logo]()
$725
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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
Thu 8/203:40 pm
FCO
- ONT
1 stop16h 18m
United Airlines
Deal found 3/29![United Airlines logo]()
$727
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 10/282:22 pm
ONT
- FCO
1 stop36h 23m
British Airways
Fri 11/611:00 am
FCO
- ONT
1 stop31h 57m
British Airways
Deal found 3/25![British Airways logo]()
$734
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Thu 4/3011:30 am
FCO
- ONT
2 stops55h 11m
United Airlines
Deal found 3/30![United Airlines logo]()
$737
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:10 am
ONT
- FCO
2 stops41h 45m
United Airlines
Thu 4/2311:30 am
FCO
- ONT
2 stops44h 01m
United Airlines
Deal found 3/29![United Airlines logo]()
$741
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 10/251:31 pm
ONT
- MAD
2 stops22h 29m
British Airways
Thu 11/121:00 pm
MAD
- ONT
1 stop19h 57m
British Airways
Deal found 3/25![British Airways 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 March 30, 2026.
Discover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 30, 2026.
This United Airlines deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Fri 8/213:40 pm
FCO
- ONT
1 stop16h 18m
United Airlines
Deal found 3/25![United Airlines logo]()
$727
This KLM deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/267:05 am
ONT
- FCO
1 stop15h 30m
KLM
Wed 5/69:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 3/26![KLM logo]()
$757
This British Airways deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/146:00 am
ONT
- FRA
1 stop17h 45m
British Airways
Mon 4/2010:55 am
FRA
- ONT
1 stop20h 41m
British Airways
Deal found 3/25![British Airways logo]()
$829
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 8/257:00 am
ONT
- ATH
1 stop18h 00m
Delta
Mon 11/231:55 pm
ATH
- ONT
2 stops43h 53m
Delta
Deal found 3/27![Delta logo]()
$852
This Turkish Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:56 pm
ONT
- FCO
2 stops34h 29m
Turkish Airlines
Fri 9/253:35 pm
FCO
- ONT
2 stops38h 54m
Turkish Airlines
Deal found 3/28![Turkish Airlines logo]()
$933
This Icelandair deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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.
Sat 4/2510:39 am
ONT
- FRA
2 stops17h 21m
Multiple Airlines
Fri 5/82:00 pm
FRA
- ONT
2 stops18h 48m
Multiple Airlines
Deal found 3/27![Multiple Airlines logo]()
$1,034
This Alaska Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/235:38 pm
ONT
- LHR
1 stop13h 27m
Alaska Airlines
Thu 8/135:00 pm
LHR
- ONT
1 stop14h 11m
Alaska Airlines
Deal found 3/26![Alaska Airlines logo]()
$1,143
This Qatar Airways deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2210:39 am
ONT
- IST
2 stops34h 41m
Qatar Airways
Tue 6/98:05 pm
IST
- ONT
2 stops37h 06m
Qatar Airways
Deal found 3/30![Qatar Airways logo]()
$1,157
This Air Serbia deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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.
Tue 6/210:41 pm
ONT
- ATH
2 stops33h 34m
Air Serbia
Wed 7/84:30 am
ATH
- ONT
2 stops28h 05m
Air Serbia
Deal found 3/27![Air Serbia logo]()
$1,328
This KLM deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:05 am
ONT
- FCO
1 stop15h 30m
KLM
Tue 4/219:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 3/29![KLM logo]()
$757
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:10 am
ONT
- PMI
2 stops25h 10m
United Airlines
Thu 4/3012:50 pm
PMI
- ONT
2 stops19h 09m
United Airlines
Deal found 3/27![United Airlines logo]()
$771
This KLM deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 pm
ONT
- FCO
1 stop24h 20m
KLM
Thu 4/309:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 3/28![KLM logo]()
$757
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:05 am
ONT
- PMI
2 stops19h 10m
United Airlines
Tue 4/284:05 pm
PMI
- ONT
2 stops34h 42m
United Airlines
Deal found 3/28![United Airlines logo]()
$791
This Delta deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 8/187:00 am
ONT
- DUB
1 stop17h 45m
Delta
Wed 9/211:00 am
DUB
- ONT
1 stop18h 56m
Delta
Deal found 3/28![Delta logo]()
$879
This British Airways deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 9/22:22 pm
ONT
- LHR
1 stop16h 03m
British Airways
Wed 9/910:05 am
LHR
- ONT
1 stop19h 03m
British Airways
Deal found 3/30![British Airways logo]()
$922
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” 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 8/187:00 am
ONT
- DUB
1 stop17h 45m
Delta
Tue 9/111:00 am
DUB
- ONT
1 stop15h 01m
Delta
Deal found 3/29![Delta logo]()
$879
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 4/165:10 am
ONT
- FCO
2 stops18h 05m
United Airlines
Tue 4/2810:20 am
FCO
- ONT
2 stops19h 16m
United Airlines
Deal found 3/26![United Airlines logo]()
$812
This Turkish Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:59 pm
ONT
- CDG
2 stops27h 51m
Turkish Airlines
Mon 9/212:20 pm
CDG
- ONT
2 stops40h 09m
Turkish Airlines
Deal found 3/27![Turkish Airlines logo]()
$1,007
This Icelandair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/1410:33 am
ONT
- FRA
2 stops17h 27m
Multiple Airlines
Mon 4/202:00 pm
FRA
- ONT
2 stops17h 40m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,044
This KLM deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/297:05 am
ONT
- DUB
1 stop17h 40m
KLM
Wed 5/1311:10 am
DUB
- ONT
2 stops19h 24m
KLM
Deal found 3/27![KLM logo]()
$876
This Delta deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/2412:49 pm
ONT
- MAD
1 stop14h 26m
Delta
Thu 4/306:00 am
MAD
- ONT
2 stops19h 25m
Delta
Deal found 3/27![Delta logo]()
$884
This Turkish Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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.
Thu 9/2410:56 pm
ONT
- MAD
2 stops50h 29m
Turkish Airlines
Sat 10/36:25 pm
MAD
- ONT
2 stops60h 04m
Turkish Airlines
Deal found 3/28![Turkish Airlines logo]()
$1,024
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 8/187:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Tue 9/19:50 am
DUB
- ONT
2 stops43h 02m
United Airlines
Deal found 3/27![United Airlines logo]()
$848
This British Airways deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 4/227:30 am
ONT
- FRA
1 stop16h 15m
British Airways
Fri 5/19:20 am
FRA
- ONT
1 stop20h 47m
British Airways
Deal found 3/27![British Airways logo]()
$1,029
This Icelandair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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.
Sun 4/1910:33 am
ONT
- LHR
2 stops17h 22m
Multiple Airlines
Tue 5/51:05 pm
LHR
- ONT
2 stops16h 45m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,045
This Qatar Airways deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” 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 4/2110:33 am
ONT
- IST
2 stops38h 42m
Qatar Airways
Thu 6/48:05 pm
IST
- ONT
2 stops32h 42m
Qatar Airways
Deal found 3/30![Qatar Airways logo]()
$1,160
This Delta deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/117:00 am
ONT
- DUB
1 stop17h 45m
Delta
Thu 9/1711:00 am
DUB
- ONT
1 stop15h 01m
Delta
Deal found 3/29![Delta logo]()
$912
This KLM deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:29 pm
ONT
- LHR
1 stop12h 31m
KLM
Thu 4/3010:55 am
LHR
- ONT
1 stop13h 30m
KLM
Deal found 3/27![KLM logo]()
$923
This Turkish Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/209:10 pm
ONT
- DUB
2 stops52h 25m
Turkish Airlines
Sat 9/265:10 pm
DUB
- ONT
2 stops59h 03m
Turkish Airlines
Deal found 3/29![Turkish Airlines logo]()
$1,045
This Icelandair deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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.
Mon 4/1310:33 am
ONT
- DUB
2 stops18h 42m
Multiple Airlines
Wed 4/2912:15 pm
DUB
- ONT
2 stops18h 17m
Multiple Airlines
Deal found 3/25![Multiple Airlines logo]()
$1,052
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated March 30, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated March 30, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 3/3011:05 am
ONT
- FCO
1 stop17h 35m
United Airlines
Wed 4/156:50 am
FCO
- ONT
2 stops24h 41m
United Airlines
Deal found 3/26![United Airlines logo]()
$747
This KLM deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” 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 3/3012:57 pm
ONT
- FCO
1 stop33h 38m
KLM
Wed 4/151:10 pm
FCO
- ONT
1 stop38h 23m
KLM
Deal found 3/26![KLM logo]()
$748
This oojo deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 3/3110:56 am
ONT
- FCO
1 stop16h 09m
British Airways
Thu 4/161:10 pm
FCO
- ONT
1 stop19h 36m
British Airways
Deal found 3/27![British Airways logo]()
$752
This United Airlines deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/115:10 am
ONT
- FCO
2 stops41h 45m
United Airlines
Thu 4/2311:30 am
FCO
- ONT
2 stops44h 01m
United Airlines
Deal found 3/29![United Airlines logo]()
$741
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1511:05 am
ONT
- FCO
1 stop17h 35m
United Airlines
Wed 4/226:50 am
FCO
- ONT
2 stops19h 57m
United Airlines
Deal found 3/30![United Airlines logo]()
$725
This United Airlines deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/186:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Thu 4/3011:30 am
FCO
- ONT
2 stops55h 11m
United Airlines
Deal found 3/30![United Airlines logo]()
$737
This FlightHub deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/181:34 pm
ONT
- FCO
2 stops35h 46m
Air Canada
Thu 4/3011:30 am
FCO
- ONT
2 stops42h 06m
Air Canada
Deal found 3/30![Air Canada logo]()
$750
This KLM deal was found by Cheapflights users on 3/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
KLM
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 3/30![KLM logo]()
$746
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/195:10 am
ONT
- PMI
2 stops25h 10m
United Airlines
Thu 4/3012:50 pm
PMI
- ONT
2 stops19h 09m
United Airlines
Deal found 3/27![United Airlines logo]()
$771
This United Airlines deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/205:10 am
ONT
- MAD
2 stops18h 50m
United Airlines
Wed 4/2910:50 am
MAD
- ONT
2 stops18h 46m
United Airlines
Deal found 3/26![United Airlines logo]()
$749
This United Airlines deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2111:05 am
ONT
- PMI
2 stops19h 10m
United Airlines
Tue 4/284:05 pm
PMI
- ONT
2 stops34h 42m
United Airlines
Deal found 3/28![United Airlines logo]()
$791
This British Airways deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 4/2810:59 am
ONT
- MAD
1 stop13h 06m
British Airways
Sun 5/33:55 pm
MAD
- ONT
1 stop16h 51m
British Airways
Deal found 3/25![British Airways logo]()
$786
One-way flights from Ontario to EuropeSearch for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated March 30, 2026.
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/167:20 am
ONT
- MAD
1 stop16h 45m
British Airways
Deal found 3/25![British Airways logo]()
$329
This oojo deal was found by Cheapflights users on 3/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:10 pm
ONT
- FCO
2 stops24h 25m
British Airways
Deal found 3/26![British Airways logo]()
$335
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” 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 7/261:10 pm
ONT
- ATH
2 stops27h 05m
British Airways
Deal found 3/25![British Airways logo]()
$341
This oojo deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/104:54 pm
ONT
- MAD
2 stops31h 46m
British Airways
Deal found 3/28![British Airways logo]()
$343
This Cheapflightsfares deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Deal found 3/27![British Airways logo]()
$345
This United Airlines deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” 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 8/127:00 am
ONT
- FCO
2 stops21h 15m
United Airlines
Deal found 3/27![United Airlines logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 3/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2810:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Deal found 3/29![British Airways logo]()
$348
This Air Canada deal was found by Cheapflights users on 3/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:00 am
ONT
- FCO
2 stops21h 45m
Air Canada
Deal found 3/27![Air Canada logo]()
$350
This oojo deal was found by Cheapflights users on 3/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3011:59 pm
ONT
- ATH
1 stop25h 46m
British Airways
Deal found 3/25![British Airways logo]()
$351
This Booking.com deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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.
Sat 8/11:18 pm
ONT
- FCO
2 stops37h 27m
Air Canada
Deal found 3/28![Air Canada logo]()
$351
This oojo deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” 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 7/2711:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Deal found 3/28![British Airways logo]()
$354
This oojo deal was found by Cheapflights users on 3/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:15 pm
ONT
- FCO
1 stop36h 50m
British Airways
Deal found 3/28![British Airways logo]()
$356
Find flight deals from Ontario to Europe
Keep the following information in mind while searching for Ontario to Europe flight deals. Data was last updated March 30, 2026.
Round-trip from | $678 (oojo) |
|---|---|
One-way from | $329 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $806 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 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
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sun 8/2
1:18 pm-12:20 pm
1 stop14h 02m
Rome Fiumicino
Fri 8/21
3:40 pm-10:58 pm
1 stop16h 18m
$727
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sun 4/26
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Wed 5/6
9:45 am-6:33 pm
1 stop17h 48m
$757
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 4/14
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Tue 4/21
9:45 am-6:33 pm
1 stop17h 48m
$757
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 4/18
10:15 pm-7:35 am
1 stop24h 20m
Rome Fiumicino
Thu 4/30
9:45 am-6:33 pm
1 stop17h 48m
$757
OntarioPalma de Mallorca
ONT - PMI
ONTPMI
Ontario
Sun 4/19
5:10 am-3:20 pm
2 stops25h 10m
Palma de Mallorca Son Sant Joan
Thu 4/30
12:50 pm-10:59 pm
2 stops19h 09m
$771
OntarioPalma de Mallorca
ONT - PMI
ONTPMI
Ontario
Tue 4/21
11:05 am-3:15 pm
2 stops19h 10m
Palma de Mallorca Son Sant Joan
Tue 4/28
4:05 pm-5:47 pm
2 stops34h 42m
$791
OntarioRome
ONT - FCO
ONTFCO
Ontario
Thu 4/16
5:10 am-8:15 am
2 stops18h 05m
Rome Fiumicino
Tue 4/28
10:20 am-8:36 pm
2 stops19h 16m
$812
OntarioFrankfurt am Main
ONT - FRA
ONTFRA
Ontario
Tue 4/14
6:00 am-8:45 am
1 stop17h 45m
Frankfurt am Main
Mon 4/20
10:55 am-10:36 pm
1 stop20h 41m
$829
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Tue 8/18
7:00 am-9:45 am
1 stop18h 45m
Dublin
Tue 9/1
9:50 am-8:52 pm
2 stops43h 02m
$848
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 8/25
7:00 am-11:00 am
1 stop18h 00m
Athens Eleftherios V.
Mon 11/23
1:55 pm-11:48 pm
2 stops43h 53m
$852
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-FCO
ONT-IST
ONT-MAD
ONT-PMI
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-FCO
ONT-IST
ONT-MAD
ONT-PMI
What is the cheapest month to book a flight from Ontario to Europe?
Currently, October is the cheapest month in which you can book a flight from Ontario to Europe (average of $240). Flying from Ontario to Europe in June is currently the most expensive (average of $599). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Europe
Get insights into the airlines that provide service to Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Europe. Reviews last updated March 30, 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
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Boarding
8.1
Overall
7.9
Crew
8.5
Entertainment
7.8
Comfort
7.9
Food
7.2
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.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top countries
Top destinations
Alternative routes for Ontario to Europe
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Europe by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Europe by cabin class
Find flights from Ontario to Europe, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Europe flights
Browse other Ontario and Europe flight options. Last updated on March 30, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Europe countries
Consider these flights traveling to countries located in Europe.
Ontario to Europe flights
Consider these flights traveling from Ontario to Europe.
Top 6 airlines flying from Ontario to Europe
Discover the top 6 airlines that operate flights from Ontario to Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 30, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$893 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$497 | Average$757 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$919 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$888 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$918 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% |