$335+ 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 8/4. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
May 10 — May 171
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
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
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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 April 10, 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 April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/167:13 pm
ONT
- FCO
1 stop33h 27m
United Airlines
Tue 8/2511:30 am
FCO
- ONT
2 stops57h 42m
United Airlines
Deal found 4/5![United Airlines logo]()
$707
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/177:13 pm
ONT
- FCO
2 stops31h 32m
United Airlines
Wed 8/262:20 pm
FCO
- ONT
2 stops36h 59m
United Airlines
Deal found 4/5![United Airlines logo]()
$710
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/185:45 am
ONT
- FCO
2 stops22h 30m
United Airlines
Wed 8/262:20 pm
FCO
- ONT
2 stops36h 59m
United Airlines
Deal found 4/5![United Airlines logo]()
$711
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:10 am
ONT
- FCO
1 stop22h 10m
United Airlines
Wed 4/2212:25 pm
FCO
- ONT
2 stops41h 11m
United Airlines
Deal found 4/10![United Airlines logo]()
$713
This Ticket deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/197:05 am
ONT
- FCO
1 stop15h 30m
Multiple Airlines
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$720
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/175:45 am
ONT
- FCO
2 stops41h 30m
United Airlines
Tue 8/2511:30 am
FCO
- ONT
2 stops57h 42m
United Airlines
Deal found 4/5![United Airlines logo]()
$722
This American Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/5![American Airlines logo]()
$723
This Expedia deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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.
Sun 8/1612:35 pm
ONT
- FCO
2 stops19h 30m
British Airways
Thu 8/271:10 pm
FCO
- ONT
1 stop16h 58m
British Airways
Deal found 4/6![British Airways logo]()
$724
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/177:00 am
ONT
- FCO
1 stop15h 35m
Delta
Mon 8/2410:35 am
FCO
- ONT
2 stops38h 39m
Delta
Deal found 4/5![Delta logo]()
$727
This Cheapflightsfares deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” 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 8/1910:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Wed 9/912:40 pm
MAD
- ONT
1 stop15h 17m
British Airways
Deal found 4/8![British Airways logo]()
$748
This Rumbo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 am
ONT
- MAD
1 stop16h 45m
Iberia
Tue 10/137:30 am
MAD
- ONT
2 stops20h 27m
Iberia
Deal found 4/8![Iberia logo]()
$752
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 10/51:31 pm
ONT
- MAD
2 stops17h 19m
British Airways
Thu 10/1512:40 pm
MAD
- ONT
1 stop16h 24m
British Airways
Deal found 4/6![British Airways 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 April 10, 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 April 10, 2026.
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/171:44 pm
ONT
- FCO
1 stop14h 56m
United Airlines
Tue 8/252:20 pm
FCO
- ONT
1 stop15h 32m
United Airlines
Deal found 4/5![United Airlines logo]()
$727
This British Airways deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/1612:35 pm
ONT
- FCO
2 stops19h 30m
British Airways
Tue 8/257:40 am
FCO
- ONT
2 stops22h 28m
British Airways
Deal found 4/5![British Airways logo]()
$743
This Alaska Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/89:20 pm
ONT
- FCO
1 stop30h 55m
Alaska Airlines
Sun 8/233:25 pm
FCO
- ONT
1 stop28h 39m
Alaska Airlines
Deal found 4/7![Alaska Airlines logo]()
$788
This KLM deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/217:05 am
ONT
- FCO
1 stop15h 30m
KLM
Sun 5/39:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 4/6![KLM logo]()
$817
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 9/15:55 am
DUB
- ONT
2 stops20h 06m
Delta
Deal found 4/9![Delta logo]()
$826
This Turkish Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/12:05 pm
ONT
- ATH
2 stops20h 25m
Multiple Airlines
Fri 8/73:55 am
ATH
- ONT
2 stops29h 16m
Multiple Airlines
Deal found 4/9![Multiple Airlines logo]()
$983
This Air Serbia deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 9/209:10 pm
ONT
- ATH
2 stops44h 10m
Air Serbia
Mon 10/54:30 am
ATH
- ONT
2 stops25h 43m
Air Serbia
Deal found 4/9![Air Serbia logo]()
$1,145
This Turkish Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/2310:41 pm
ONT
- FRA
2 stops50h 24m
Turkish Airlines
Sun 6/77:00 pm
FRA
- ONT
2 stops58h 47m
Turkish Airlines
Deal found 4/9![Turkish Airlines logo]()
$1,331
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 9/276:30 pm
ONT
- PMI
2 stops26h 45m
United Airlines
Thu 10/112:15 pm
PMI
- ONT
2 stops43h 11m
United Airlines
Deal found 4/5![United Airlines logo]()
$785
This KLM deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 5/57:05 am
ONT
- FCO
1 stop15h 30m
KLM
Thu 5/141:10 pm
FCO
- ONT
1 stop17h 38m
KLM
Deal found 4/9![KLM logo]()
$837
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 10/712:00 pm
ONT
- FCO
1 stop15h 40m
Delta
Sat 10/246:30 am
FCO
- ONT
2 stops25h 13m
Delta
Deal found 4/9![Delta logo]()
$847
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/51:33 pm
ONT
- FCO
1 stop15h 07m
United Airlines
Tue 10/139:45 am
FCO
- ONT
1 stop21h 41m
United Airlines
Deal found 4/5![United Airlines logo]()
$787
This Alaska Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:39 am
ONT
- FCO
1 stop17h 36m
Alaska Airlines
Mon 5/183:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$894
This British Airways deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 9/2310:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Wed 10/73:55 pm
MAD
- ONT
1 stop16h 11m
British Airways
Deal found 4/6![British Airways logo]()
$923
This Delta deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/237:05 am
ONT
- FCO
1 stop15h 30m
Delta
Wed 4/299:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/6![Delta logo]()
$857
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 4/2410:15 pm
ONT
- DUB
2 stops25h 40m
Delta
Tue 5/125:55 am
DUB
- ONT
2 stops23h 53m
Delta
Deal found 4/9![Delta logo]()
$864
This Icelandair deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/2710:39 am
ONT
- DUB
2 stops18h 36m
Multiple Airlines
Mon 5/42:15 pm
DUB
- ONT
2 stops17h 33m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$1,047
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” 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 4/217:00 am
ONT
- FCO
1 stop15h 55m
United Airlines
Sun 5/39:45 am
FCO
- ONT
1 stop21h 50m
United Airlines
Deal found 4/7![United Airlines logo]()
$867
This Alaska Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 5/1612:04 pm
ONT
- FCO
1 stop16h 11m
Alaska Airlines
Sun 5/243:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 4/6![Alaska Airlines logo]()
$954
This KLM deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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.
Fri 4/2410:15 pm
ONT
- DUB
1 stop26h 30m
KLM
Tue 5/1211:00 am
DUB
- ONT
1 stop15h 36m
KLM
Deal found 4/9![KLM logo]()
$974
This British Airways deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/1610:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Sun 10/1812:40 pm
MAD
- ONT
1 stop16h 24m
British Airways
Deal found 4/5![British Airways logo]()
$1,048
This Turkish Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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.
Fri 5/87:59 pm
ONT
- FRA
2 stops40h 16m
Multiple Airlines
Tue 5/127:00 pm
FRA
- ONT
2 stops37h 58m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$1,057
This United Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 8/96:30 am
ONT
- DUB
1 stop19h 15m
United Airlines
Wed 8/1911:35 am
DUB
- ONT
1 stop14h 44m
United Airlines
Deal found 4/6![United Airlines logo]()
$879
This KLM deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 8/47:05 am
ONT
- ATH
1 stop17h 55m
KLM
Tue 8/1812:10 pm
ATH
- ONT
1 stop19h 46m
KLM
Deal found 4/5![KLM logo]()
$985
This Delta deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 5/312:49 pm
ONT
- FCO
1 stop14h 46m
Delta
Sun 5/109:45 am
FCO
- ONT
1 stop17h 51m
Delta
Deal found 4/9![Delta logo]()
$897
This Alaska Airlines deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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.
Mon 8/175:26 pm
ONT
- LHR
1 stop13h 39m
Alaska Airlines
Tue 8/255:00 pm
LHR
- ONT
1 stop14h 24m
Alaska Airlines
Deal found 4/9![Alaska Airlines logo]()
$1,046
This Air Serbia deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/2610:41 pm
ONT
- ATH
2 stops33h 34m
Air Serbia
Sat 6/134:30 pm
ATH
- ONT
2 stops40h 08m
Air Serbia
Deal found 4/5![Air Serbia logo]()
$1,295
This Icelandair deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” 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 5/610:39 am
ONT
- LHR
2 stops25h 41m
Multiple Airlines
Wed 5/131:05 pm
LHR
- ONT
2 stops16h 45m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” 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
2 stops16h 30m
United Airlines
Tue 9/19:50 am
DUB
- ONT
2 stops40h 29m
United Airlines
Deal found 4/7![United Airlines logo]()
$902
This British Airways deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 4/277:30 am
ONT
- BCN
1 stop15h 05m
British Airways
Wed 5/1310:45 am
BCN
- ONT
1 stop16h 53m
British Airways
Deal found 4/9![British Airways logo]()
$1,101
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated April 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated April 10, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/116:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Thu 4/2311:30 am
FCO
- ONT
2 stops44h 01m
United Airlines
Deal found 4/5![United Airlines logo]()
$737
This KLM deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/1110:25 pm
ONT
- FCO
1 stop24h 10m
KLM
Thu 4/239:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 4/6![KLM logo]()
$757
This oojo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” 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 4/1111:59 pm
ONT
- FCO
1 stop27h 06m
British Airways
Thu 4/231:10 pm
FCO
- ONT
1 stop18h 26m
British Airways
Deal found 4/8![British Airways logo]()
$758
This Iberia deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” 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 4/127:30 am
ONT
- FCO
1 stop19h 35m
Multiple Airlines
Wed 4/2212:00 pm
FCO
- ONT
2 stops20h 46m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$760
This United Airlines deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/155:10 am
ONT
- FCO
1 stop22h 10m
United Airlines
Wed 4/2212:25 pm
FCO
- ONT
2 stops41h 11m
United Airlines
Deal found 4/10![United Airlines logo]()
$713
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/157:05 am
ONT
- FCO
1 stop15h 30m
Delta
Wed 4/229:45 am
FCO
- ONT
1 stop20h 15m
Delta
Deal found 4/10![Delta logo]()
$727
This Ticket deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/197:05 am
ONT
- FCO
1 stop15h 30m
Multiple Airlines
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$720
This KLM deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/6![KLM logo]()
$748
This Delta deal was found by Cheapflights users on 4/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta 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
Delta
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/10![Delta logo]()
$749
This Kissandfly.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/191:27 pm
ONT
- FCO
1 stop15h 13m
Lufthansa
Tue 5/53:40 pm
FCO
- ONT
1 stop16h 19m
Lufthansa
Deal found 4/5![Lufthansa logo]()
$752
This Iberia deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 4/2610:59 am
ONT
- DUB
1 stop14h 46m
Iberia
Tue 5/1212:40 pm
DUB
- ONT
1 stop18h 00m
Iberia
Deal found 4/9![Iberia logo]()
$788
This KLM deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 5/510:15 pm
ONT
- ATH
1 stop26h 45m
KLM
Thu 5/149:45 am
ATH
- ONT
1 stop22h 03m
KLM
Deal found 4/6![KLM logo]()
$844
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 April 10, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated April 10, 2026.
This oojo deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 8/412:39 pm
ONT
- FCO
2 stops18h 46m
British Airways
Deal found 4/9![British Airways logo]()
$335
This American Airlines deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/21:10 pm
ONT
- FCO
2 stops18h 55m
American Airlines
Deal found 4/8![American Airlines logo]()
$343
This oojo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” 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 9/204:59 pm
ONT
- MAD
2 stops31h 41m
British Airways
Deal found 4/8![British Airways logo]()
$343
This Cheapflightsfares deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/6![British Airways logo]()
$344
This oojo deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” 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 8/1210:25 am
ONT
- FCO
1 stop16h 40m
British Airways
Deal found 4/7![British Airways logo]()
$345
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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
Deal found 4/5![United Airlines logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 8/1210:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Deal found 4/6![British Airways logo]()
$348
This Air Canada deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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.
Tue 8/185:00 am
ONT
- FCO
2 stops19h 15m
Air Canada
Deal found 4/5![Air Canada logo]()
$350
This Cheapflightsfares deal was found by Cheapflights users on 4/9. Clicking the “Pick Dates” 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 8/167:20 am
ONT
- MAD
1 stop16h 45m
Iberia
Deal found 4/9![Iberia logo]()
$350
This American Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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.
Mon 8/32:15 pm
ONT
- MAD
1 stop15h 10m
American Airlines
Deal found 4/5![American Airlines logo]()
$351
This oojo deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” 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 4/8![British Airways logo]()
$354
This American Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/2611:59 pm
ONT
- MAD
1 stop24h 06m
American Airlines
Deal found 4/6![American Airlines logo]()
$355
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 April 10, 2026.
Round-trip from | $707 (United Airlines) |
|---|---|
One-way from | $335 (oojo) |
Popular in | June |
Cheapest in | February |
Average price | $777 |
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 April 10, 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 8/17
1:44 pm-1:40 pm
1 stop14h 56m
Rome Fiumicino
Tue 8/25
2:20 pm-8:52 pm
1 stop15h 32m
$727
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sun 8/16
12:35 pm-5:05 pm
2 stops19h 30m
Rome Fiumicino
Tue 8/25
7:40 am-9:08 pm
2 stops22h 28m
$743
OntarioPalma de Mallorca
ONT - PMI
ONTPMI
Ontario
Sun 9/27
6:30 pm-6:15 am
2 stops26h 45m
Palma de Mallorca Son Sant Joan
Thu 10/1
12:15 pm-10:26 pm
2 stops43h 11m
$785
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 10/5
1:33 pm-1:40 pm
1 stop15h 07m
Rome Fiumicino
Tue 10/13
9:45 am-10:26 pm
1 stop21h 41m
$787
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 8/8
9:20 pm-1:15 pm
1 stop30h 55m
Rome Fiumicino
Sun 8/23
3:25 pm-11:04 am
1 stop28h 39m
$788
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 4/21
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Sun 5/3
9:45 am-6:33 pm
1 stop17h 48m
$817
OntarioDublin
ONT - DUB
ONTDUB
Ontario
Tue 8/18
7:00 am-8:45 am
1 stop17h 45m
Dublin
Tue 9/1
5:55 am-6:01 pm
2 stops20h 06m
$826
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 5/5
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Thu 5/14
1:10 pm-9:48 pm
1 stop17h 38m
$837
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 10/7
12:00 pm-12:40 pm
1 stop15h 40m
Rome Fiumicino
Sat 10/24
6:30 am-10:43 pm
2 stops25h 13m
$847
OntarioRome
ONT - FCO
ONTFCO
Ontario
Thu 4/23
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Wed 4/29
9:45 am-6:33 pm
1 stop17h 48m
$857
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-MAD
ONT-DUB
ONT-ATH
ONT-PMI
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-MAD
ONT-DUB
ONT-ATH
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 $229). 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 April 10, 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.
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Entertainment
7.8
Comfort
7.9
Crew
8.5
Overall
7.9
Food
7.2
Boarding
8.1
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Europe
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Europe by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Europe by cabin class
Find flights from Ontario to Europe, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Europe flights
Browse other Ontario and Europe flight options. Last updated on April 10, 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 April 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$853 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$497 | Average$757 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$904 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$874 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$918 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% |