$336+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Jun 2 — Jun 91
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 May 3, 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 May 3, 2026.
This Delta deal was found by Cheapflights users on 4/28. 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.
Wed 11/49:55 am
ONT
- IST
2 stops21h 00m
Delta
Fri 11/137:15 am
IST
- ONT
2 stops19h 57m
Delta
Deal found 4/28![Delta logo]()
$705
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 8/31:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Thu 8/272:20 pm
FCO
- ONT
1 stop15h 32m
United Airlines
Deal found 4/28![United Airlines logo]()
$720
This oojo deal was found by Cheapflights users on 4/29. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am
ONT
- FCO
1 stop18h 45m
British Airways
Wed 11/2511:00 am
FCO
- ONT
1 stop21h 57m
British Airways
Deal found 4/29![British Airways logo]()
$723
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 11/157:00 am
ONT
- FCO
1 stop15h 45m
United Airlines
Thu 12/31:30 pm
FCO
- ONT
2 stops18h 36m
United Airlines
Deal found 5/1![United Airlines logo]()
$726
This Iberia deal was found by Cheapflights users on 4/29. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/277:20 am
ONT
- FCO
1 stop19h 25m
Iberia
Tue 11/1011:00 am
FCO
- ONT
1 stop21h 57m
Iberia
Deal found 4/29![Iberia logo]()
$727
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 8/27:05 am
ONT
- FCO
1 stop15h 30m
Delta
Thu 8/271:10 pm
FCO
- ONT
1 stop17h 46m
Delta
Deal found 4/28![Delta logo]()
$728
This oojo deal was found by Cheapflights users on 4/28. 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 8/152:43 pm
ONT
- FCO
1 stop36h 22m
British Airways
Fri 8/281:10 pm
FCO
- ONT
1 stop18h 48m
British Airways
Deal found 4/28![British Airways logo]()
$729
This KLM deal was found by Cheapflights users on 4/28. 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.
Wed 11/187:00 am
ONT
- FCO
2 stops17h 35m
KLM
Wed 11/256:10 am
FCO
- ONT
2 stops21h 08m
KLM
Deal found 4/28![KLM logo]()
$732
This Ticket deal was found by Cheapflights users on 4/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:49 pm
ONT
- FCO
1 stop14h 46m
KLM
Tue 5/199:45 am
FCO
- ONT
1 stop17h 51m
KLM
Deal found 4/30![KLM logo]()
$741
This Cheapflightsfares deal was found by Cheapflights users on 4/28. 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 Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:47 am
ONT
- FCO
1 stop14h 58m
British Airways
Wed 11/1111:00 am
FCO
- ONT
1 stop20h 23m
British Airways
Deal found 4/28![British Airways logo]()
$743
This Cheapflightsfares deal was found by Cheapflights users on 4/30. 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 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
Fri 9/1112:40 pm
MAD
- ONT
1 stop15h 17m
British Airways
Deal found 4/30![British Airways logo]()
$749
This Trip.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 12/812:00 pm
ONT
- FCO
1 stop14h 20m
Air France
Tue 12/221:30 pm
FCO
- ONT
1 stop37h 48m
Air France
Deal found 5/1![Air France 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 May 3, 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 May 3, 2026.
This Delta deal was found by Cheapflights users on 4/28. 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.
Mon 8/37:05 am
ONT
- FCO
1 stop15h 30m
Delta
Tue 8/251:10 pm
FCO
- ONT
1 stop17h 46m
Delta
Deal found 4/28![Delta logo]()
$728
This KLM deal was found by Cheapflights users on 4/29. 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 8/1812:00 pm
ONT
- MAD
1 stop15h 15m
KLM
Tue 9/159:50 am
MAD
- ONT
1 stop17h 11m
KLM
Deal found 4/29![KLM logo]()
$764
This British Airways deal was found by Cheapflights users on 4/28. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2610:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Wed 10/73:55 pm
MAD
- ONT
1 stop16h 11m
British Airways
Deal found 4/28![British Airways logo]()
$889
This United Airlines deal was found by Cheapflights users on 4/30. 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.
Sun 10/111:49 pm
ONT
- FCO
1 stop14h 51m
United Airlines
Mon 10/199:45 am
FCO
- ONT
1 stop21h 41m
United Airlines
Deal found 4/30![United Airlines logo]()
$895
This Icelandair deal was found by Cheapflights users on 4/30. 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 Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/110:45 am
ONT
- DUB
2 stops16h 20m
Multiple Airlines
Thu 10/82:15 pm
DUB
- ONT
2 stops16h 24m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$970
This Alaska Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 8/135:26 pm
ONT
- LHR
1 stop13h 39m
Alaska Airlines
Mon 8/245:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Deal found 5/2![Alaska Airlines logo]()
$1,075
This JetBlue deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/19:10 pm
ONT
- LHR
1 stop15h 35m
JetBlue
Tue 10/68:15 am
LHR
- ONT
1 stop19h 58m
JetBlue
Deal found 5/1![JetBlue logo]()
$1,162
This Virgin Atlantic deal was found by Cheapflights users on 4/28. 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 Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:00 pm
ONT
- AMS
1 stop12h 15m
Virgin Atlantic
Sat 9/262:40 pm
AMS
- ONT
2 stops18h 04m
Virgin Atlantic
Deal found 4/28![Virgin Atlantic logo]()
$1,171
This Air Serbia deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Sun 8/3011:50 pm
ONT
- ATH
2 stops41h 30m
Air Serbia
Sun 9/273:35 pm
ATH
- ONT
2 stops38h 38m
Air Serbia
Deal found 5/2![Air Serbia logo]()
$1,470
This Qatar Airways deal was found by Cheapflights users on 4/30. 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.
Mon 7/2012:04 pm
ONT
- IST
2 stops37h 51m
Qatar Airways
Thu 7/308:05 pm
IST
- ONT
2 stops34h 31m
Qatar Airways
Deal found 4/30![Qatar Airways logo]()
$1,622
This KLM deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 8/137:00 am
ONT
- FCO
1 stop15h 35m
KLM
Sat 8/229:45 am
FCO
- ONT
1 stop17h 44m
KLM
Deal found 5/2![KLM logo]()
$828
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Wed 9/169:01 am
ONT
- LHR
1 stop14h 24m
United Airlines
Wed 9/232:50 pm
LHR
- ONT
1 stop14h 02m
United Airlines
Deal found 4/28![United Airlines logo]()
$925
This KLM deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/77:00 am
ONT
- FCO
1 stop20h 40m
KLM
Sat 10/242:45 pm
FCO
- ONT
1 stop36h 33m
KLM
Deal found 5/1![KLM logo]()
$856
This British Airways deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 8/207:06 am
ONT
- ATH
1 stop18h 39m
British Airways
Thu 8/2712:00 pm
ATH
- ONT
1 stop20h 04m
British Airways
Deal found 5/2![British Airways logo]()
$956
This Delta deal was found by Cheapflights users on 4/28. 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.
Sun 5/1711:52 am
ONT
- FCO
1 stop37h 18m
Delta
Wed 6/2410:35 am
FCO
- ONT
2 stops46h 14m
Delta
Deal found 4/28![Delta logo]()
$965
This United Airlines deal was found by Cheapflights users on 4/29. 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.
Sun 8/167:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Wed 8/269:20 am
DUB
- ONT
2 stops44h 39m
United Airlines
Deal found 4/29![United Airlines logo]()
$933
This KLM deal was found by Cheapflights users on 4/29. 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 8/257:00 am
ONT
- FCO
1 stop15h 35m
KLM
Tue 9/89:45 am
FCO
- ONT
1 stop17h 16m
KLM
Deal found 4/29![KLM logo]()
$861
This Condor deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/3111:05 am
ONT
- BCN
2 stops26h 05m
Multiple Airlines
Thu 6/48:00 am
BCN
- ONT
2 stops21h 10m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$1,056
This Alaska Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” 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 8/65:26 pm
ONT
- LHR
1 stop13h 39m
Alaska Airlines
Thu 8/205:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Deal found 5/3![Alaska Airlines logo]()
$1,075
This British Airways deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/257:20 am
ONT
- FRA
1 stop16h 25m
British Airways
Mon 10/59:20 am
FRA
- ONT
1 stop19h 44m
British Airways
Deal found 5/1![British Airways logo]()
$1,020
This Delta deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 7/207:05 am
ONT
- DUB
1 stop17h 40m
Delta
Thu 7/3011:00 am
DUB
- ONT
1 stop18h 50m
Delta
Deal found 5/2![Delta logo]()
$1,040
This KLM deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/287:00 am
ONT
- DUB
1 stop17h 45m
KLM
Fri 11/69:45 am
DUB
- ONT
1 stop16h 33m
KLM
Deal found 5/1![KLM logo]()
$875
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 6/86:30 pm
ONT
- FRA
2 stops27h 20m
United Airlines
Thu 6/189:55 am
FRA
- ONT
2 stops45h 42m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,005
This British Airways deal was found by Cheapflights users on 4/29. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/166:00 am
ONT
- FRA
1 stop17h 45m
British Airways
Fri 10/2310:55 am
FRA
- ONT
1 stop17h 02m
British Airways
Deal found 4/29![British Airways logo]()
$1,021
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 9/53:05 pm
ONT
- LHR
1 stop16h 00m
Alaska Airlines
Tue 9/155:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$1,125
This KLM deal was found by Cheapflights users on 4/28. 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.
Mon 10/127:00 am
ONT
- ATH
1 stop16h 20m
KLM
Wed 10/149:45 am
ATH
- ONT
1 stop18h 33m
KLM
Deal found 4/28![KLM logo]()
$882
This KLM deal was found by Cheapflights users on 4/29. 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.
Thu 10/87:00 am
ONT
- BCN
1 stop19h 10m
Multiple Airlines
Sat 10/176:10 am
BCN
- ONT
2 stops19h 02m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,178
This JetBlue deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 6/710:41 pm
ONT
- LHR
1 stop14h 04m
JetBlue
Sat 6/138:15 am
LHR
- ONT
1 stop21h 46m
JetBlue
Deal found 5/1![JetBlue logo]()
$1,337
This United Airlines deal was found by Cheapflights users on 4/30. 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 5/301:40 pm
ONT
- FRA
1 stop35h 05m
United Airlines
Sun 6/141:15 pm
FRA
- ONT
2 stops31h 57m
United Airlines
Deal found 4/30![United Airlines logo]()
$1,018
This British Airways deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 6/255:45 am
ONT
- FRA
1 stop18h 00m
British Airways
Thu 7/910:55 am
FRA
- ONT
1 stop18h 04m
British Airways
Deal found 5/2![British Airways logo]()
$1,021
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated May 3, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated May 3, 2026 and is based on user searches.
This Alaska Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 5/23:26 pm
ONT
- FCO
1 stop36h 49m
Alaska Airlines
Tue 5/193:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 5/1![Alaska Airlines logo]()
$793
This Ticket deal was found by Cheapflights users on 4/30. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:49 pm
ONT
- FCO
1 stop14h 46m
KLM
Tue 5/199:45 am
FCO
- ONT
1 stop17h 51m
KLM
Deal found 4/30![KLM logo]()
$741
This United Airlines deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 5/31:30 pm
ONT
- FCO
1 stop15h 10m
United Airlines
Mon 5/1110:50 am
FCO
- ONT
2 stops40h 02m
United Airlines
Deal found 5/2![United Airlines logo]()
$799
This Trip.com deal was found by Cheapflights users on 4/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:49 pm
ONT
- FCO
1 stop33h 46m
Multiple Airlines
Tue 5/1910:10 am
FCO
- ONT
2 stops20h 38m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$815
This Air Canada deal was found by Cheapflights users on 4/30. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/41:40 pm
ONT
- FCO
2 stops34h 35m
Air Canada
Wed 5/2011:30 am
FCO
- ONT
2 stops38h 58m
Air Canada
Deal found 4/30![Air Canada logo]()
$777
This United Airlines deal was found by Cheapflights users on 4/28. 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.
Mon 5/46:00 am
ONT
- FCO
1 stop22h 40m
United Airlines
Wed 5/206:50 am
FCO
- ONT
2 stops24h 45m
United Airlines
Deal found 4/28![United Airlines logo]()
$787
This KLM deal was found by Cheapflights users on 4/28. 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.
Mon 5/47:05 am
ONT
- FCO
1 stop15h 30m
KLM
Wed 5/209:45 am
FCO
- ONT
1 stop17h 51m
KLM
Deal found 4/28![KLM logo]()
$788
This Trip.com deal was found by Cheapflights users on 4/30. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/510:39 am
ONT
- FCO
1 stop17h 36m
Alaska Airlines
Tue 5/193:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 4/30![Alaska Airlines logo]()
$771
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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.
Sat 5/167:00 am
ONT
- FRA
1 stop18h 30m
Multiple Airlines
Thu 6/411:55 am
FRA
- ONT
1 stop21h 01m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$890
This Cheapflightsfares deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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.
Sat 5/167:00 am
ONT
- FRA
1 stop18h 30m
Multiple Airlines
Mon 6/111:30 am
FRA
- ONT
1 stop21h 26m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$910
This FlightHub deal was found by Cheapflights users on 4/29. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/217:00 am
ONT
- FRA
1 stop18h 55m
Multiple Airlines
Thu 6/411:40 am
FRA
- ONT
1 stop18h 07m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$889
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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.
Sat 5/3011:15 am
ONT
- FRA
1 stop14h 15m
Multiple Airlines
Fri 6/511:40 am
FRA
- ONT
1 stop18h 07m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$898
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 May 3, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated May 3, 2026.
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/2912:35 pm
ONT
- FCO
2 stops19h 20m
British Airways
Deal found 4/30![British Airways logo]()
$336
This Cheapflightsfares deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” 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 10/2712:35 pm
ONT
- FCO
1 stop14h 10m
British Airways
Deal found 5/2![British Airways logo]()
$340
This KLM deal was found by Cheapflights users on 4/29. 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 7/287:05 am
ONT
- FCO
1 stop15h 30m
KLM
Deal found 4/29![KLM logo]()
$341
This KLM deal was found by Cheapflights users on 4/28. 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.
Sun 8/167:00 am
ONT
- FCO
1 stop15h 35m
KLM
Deal found 4/28![KLM logo]()
$343
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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.
Wed 8/510:29 am
ONT
- MAD
1 stop13h 36m
British Airways
Deal found 4/29![British Airways logo]()
$343
This Cheapflightsfares deal was found by Cheapflights users on 4/29. 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 4/29![British Airways logo]()
$348
This KLM deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 8/311:48 am
ONT
- MAD
1 stop15h 27m
KLM
Deal found 5/1![KLM logo]()
$349
This United Airlines deal was found by Cheapflights users on 4/29. 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 8/41:50 pm
ONT
- FCO
3 stops34h 25m
United Airlines
Deal found 4/29![United Airlines logo]()
$350
This Mytrip deal was found by Cheapflights users on 4/29. 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 Mytrip 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 4/29![Air Canada logo]()
$351
This KLM deal was found by Cheapflights users on 4/29. 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 9/2912:00 pm
ONT
- MAD
1 stop15h 15m
KLM
Deal found 4/29![KLM logo]()
$351
This KLM deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” 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 10/1912:00 pm
ONT
- MAD
1 stop15h 15m
KLM
Deal found 5/1![KLM logo]()
$352
This oojo deal was found by Cheapflights users on 4/30. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2611:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Deal found 4/30![British Airways logo]()
$354
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 May 3, 2026.
Round-trip from | $720 (United Airlines) |
|---|---|
One-way from | $336 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $1,136 |
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 May 3, 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
Mon 8/3
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Tue 8/25
1:10 pm-9:56 pm
1 stop17h 46m
$728
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 8/18
12:00 pm-12:15 pm
1 stop15h 15m
Madrid Barajas
Tue 9/15
9:50 am-6:01 pm
1 stop17h 11m
$764
OntarioRome
ONT - FCO
ONTFCO
Ontario
Thu 8/13
7:00 am-7:35 am
1 stop15h 35m
Rome Fiumicino
Sat 8/22
9:45 am-6:29 pm
1 stop17h 44m
$828
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 10/7
7:00 am-12:40 pm
1 stop20h 40m
Rome Fiumicino
Sat 10/24
2:45 pm-6:18 pm
1 stop36h 33m
$856
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 8/25
7:00 am-7:35 am
1 stop15h 35m
Rome Fiumicino
Tue 9/8
9:45 am-6:01 pm
1 stop17h 16m
$861
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Wed 10/28
7:00 am-7:45 am
1 stop17h 45m
Dublin
Fri 11/6
9:45 am-6:18 pm
1 stop16h 33m
$875
OntarioAthens
ONT - ATH
ONTATH
Ontario
Mon 10/12
7:00 am-9:20 am
1 stop16h 20m
Athens Eleftherios V.
Wed 10/14
9:45 am-6:18 pm
1 stop18h 33m
$882
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Sat 9/26
10:25 am-9:05 am
1 stop13h 40m
Madrid Barajas
Wed 10/7
3:55 pm-11:06 pm
1 stop16h 11m
$889
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sun 10/11
1:49 pm-1:40 pm
1 stop14h 51m
Rome Fiumicino
Mon 10/19
9:45 am-10:26 pm
1 stop21h 41m
$895
OntarioLondon
ONT - LHR
ONTLHR
Ontario
Wed 9/16
9:01 am-7:25 am
1 stop14h 24m
London Heathrow
Wed 9/23
2:50 pm-8:52 pm
1 stop14h 02m
$925
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-ATH
ONT-IST
ONT-AMS
ONT-LHR
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-ATH
ONT-IST
ONT-AMS
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 May 3, 2026.
See what other customers who have flown with Delta,United Airlines, andAmerican Airlines from Ontario to Europe have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Comfort
7.9
Entertainment
7.8
Food
7.2
Boarding
8.1
Overall
7.9
Crew
8.5
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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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 May 3, 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 May 3, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$734 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$902 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$874 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$819 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$624 | Average$897 | FlexibilityNo cancel fee | On-time71% |