$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 17 — May 241
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 17, 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 17, 2026.
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Wed 5/2710:40 am
KEF
- ONT
2 stops44h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$677
This Alaska Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/112:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Fri 6/1212:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$694
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/312:06 pm
ONT
- KEF
1 stop13h 54m
Alaska Airlines
Tue 6/912:45 pm
KEF
- ONT
1 stop18h 13m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$695
This Alaska Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/27:41 pm
ONT
- KEF
1 stop30h 19m
Alaska Airlines
Thu 6/1112:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$701
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/1612:08 pm
ONT
- KEF
1 stop13h 52m
Alaska Airlines
Tue 8/2512:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$704
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:39 pm
ONT
- FCO
1 stop14h 26m
British Airways
Thu 8/271:10 pm
FCO
- ONT
1 stop17h 02m
British Airways
Deal found 4/14![British Airways logo]()
$713
This Expedia deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2712:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Tue 8/412:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/15![Alaska Airlines logo]()
$714
This Ticket deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/13![Multiple Airlines logo]()
$715
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/292:05 pm
ONT
- KEF
1 stop11h 55m
Alaska Airlines
Tue 8/412:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$715
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:00 am
ONT
- FCO
1 stop16h 15m
KLM
Tue 12/151:30 pm
FCO
- ONT
1 stop17h 44m
KLM
Deal found 4/14![KLM logo]()
$719
This Ticket deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
KLM
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 4/15![KLM logo]()
$720
This KLM deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:00 pm
ONT
- FCO
1 stop15h 40m
KLM
Wed 8/269:45 am
FCO
- ONT
1 stop17h 16m
KLM
Deal found 4/13![KLM logo]()
$721
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 17, 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 17, 2026.
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2511:58 am
ONT
- KEF
1 stop14h 02m
Alaska Airlines
Wed 9/212:45 pm
KEF
- ONT
1 stop17h 39m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$726
This United Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/61:33 pm
ONT
- FCO
1 stop15h 07m
United Airlines
Tue 10/136:50 am
FCO
- ONT
2 stops24h 36m
United Airlines
Deal found 4/13![United Airlines logo]()
$787
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:00 pm
ONT
- FCO
1 stop24h 35m
KLM
Tue 5/196:30 am
FCO
- ONT
2 stops19h 40m
KLM
Deal found 4/14![KLM logo]()
$788
This Delta deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/149:55 am
ONT
- FCO
2 stops21h 40m
Delta
Sun 9/206:30 am
FCO
- ONT
2 stops18h 44m
Delta
Deal found 4/12![Delta logo]()
$852
This KLM deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/277:05 am
ONT
- KEF
2 stops16h 55m
Multiple Airlines
Tue 8/49:30 am
KEF
- ONT
2 stops14h 05m
Multiple Airlines
Deal found 4/15![Multiple Airlines logo]()
$984
This British Airways deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/222:43 pm
ONT
- LHR
1 stop13h 27m
British Airways
Sun 9/64:10 pm
LHR
- ONT
1 stop13h 41m
British Airways
Deal found 4/16![British Airways logo]()
$1,025
This Qatar Airways deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/296:00 am
ONT
- IST
2 stops39h 20m
Qatar Airways
Tue 6/211:00 am
IST
- ONT
2 stops41h 47m
Qatar Airways
Deal found 4/12![Qatar Airways logo]()
$1,112
This Air Serbia deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/229:10 pm
ONT
- ATH
2 stops44h 10m
Air Serbia
Sun 10/43:35 pm
ATH
- ONT
2 stops38h 38m
Air Serbia
Deal found 4/14![Air Serbia logo]()
$1,153
This Virgin Atlantic deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/15:50 pm
ONT
- LHR
1 stop13h 45m
Virgin Atlantic
Mon 6/88:55 pm
LHR
- ONT
2 stops27h 47m
Virgin Atlantic
Deal found 4/16![Virgin Atlantic logo]()
$1,279
This Turkish Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/2710:41 pm
ONT
- MAD
2 stops29h 54m
Turkish Airlines
Fri 6/262:40 pm
MAD
- ONT
2 stops40h 21m
Turkish Airlines
Deal found 4/16![Turkish Airlines logo]()
$1,288
This Alaska Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/412:04 pm
ONT
- KEF
1 stop13h 56m
Alaska Airlines
Thu 6/1112:45 pm
KEF
- ONT
1 stop17h 26m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$754
This United Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/96:59 pm
ONT
- FCO
2 stops27h 36m
United Airlines
Tue 5/1911:00 am
FCO
- ONT
2 stops20h 59m
United Airlines
Deal found 4/14![United Airlines logo]()
$793
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
- KEF
1 stop20h 00m
Alaska Airlines
Wed 6/312:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$754
This KLM deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/107:05 am
ONT
- FCO
1 stop15h 30m
KLM
Mon 5/189:45 am
FCO
- ONT
1 stop17h 51m
KLM
Deal found 4/16![KLM logo]()
$848
This Delta deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 stops24h 01m
Delta
Deal found 4/14![Delta logo]()
$877
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/71:30 pm
ONT
- FCO
1 stop15h 10m
United Airlines
Thu 5/142:20 pm
FCO
- ONT
1 stop15h 16m
United Airlines
Deal found 4/12![United Airlines logo]()
$848
This Alaska Airlines deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:57 pm
ONT
- KEF
1 stop30h 03m
Alaska Airlines
Tue 8/2512:45 pm
KEF
- ONT
1 stop13h 18m
Alaska Airlines
Deal found 4/13![Alaska Airlines logo]()
$772
This Turkish Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:00 pm
ONT
- BCN
2 stops26h 15m
Multiple Airlines
Sat 10/177:40 am
BCN
- ONT
2 stops43h 33m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$994
This United Airlines deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/245:45 am
ONT
- FCO
2 stops22h 30m
United Airlines
Fri 8/286:50 am
FCO
- ONT
2 stops20h 29m
United Airlines
Deal found 4/15![United Airlines logo]()
$851
This British Airways deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/410:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Wed 9/301:00 pm
MAD
- ONT
1 stop15h 55m
British Airways
Deal found 4/13![British Airways logo]()
$1,044
This Alaska Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1210:39 am
ONT
- FCO
1 stop17h 36m
Alaska Airlines
Tue 5/193:25 pm
FCO
- ONT
1 stop17h 33m
Alaska Airlines
Deal found 4/12![Alaska Airlines logo]()
$788
This KLM deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/307:05 am
ONT
- DUB
1 stop17h 40m
KLM
Wed 5/1311:00 am
DUB
- ONT
1 stop15h 36m
KLM
Deal found 4/16![KLM logo]()
$975
This Turkish Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
ONT
- BCN
2 stops32h 15m
Multiple Airlines
Sun 10/187:40 am
BCN
- ONT
2 stops36h 29m
Multiple Airlines
Deal found 4/12![Multiple Airlines logo]()
$994
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/137:00 am
ONT
- DUB
1 stop17h 45m
Delta
Sat 10/1011:00 am
DUB
- ONT
1 stop15h 18m
Delta
Deal found 4/13![Delta logo]()
$1,020
This Qatar Airways deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:59 pm
ONT
- IST
2 stops49h 21m
Qatar Airways
Fri 5/811:00 am
IST
- ONT
2 stops45h 32m
Qatar Airways
Deal found 4/14![Qatar Airways logo]()
$1,160
This British Airways deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/910:59 am
ONT
- LHR
1 stop13h 36m
British Airways
Sat 5/1610:05 am
LHR
- ONT
1 stop14h 17m
British Airways
Deal found 4/16![British Airways logo]()
$1,060
This United Airlines deal was found by Cheapflights users on 4/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
ONT
- DUB
1 stop18h 45m
United Airlines
Fri 9/1111:35 am
DUB
- ONT
1 stop14h 44m
United Airlines
Deal found 4/12![United Airlines logo]()
$880
This Icelandair deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/173:09 pm
ONT
- KEF
1 stop11h 16m
Multiple Airlines
Thu 9/244:50 pm
KEF
- ONT
1 stop12h 20m
Multiple Airlines
Deal found 4/14![Multiple Airlines logo]()
$1,016
This KLM deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/317:05 am
ONT
- FCO
1 stop15h 30m
KLM
Fri 8/71:10 pm
FCO
- ONT
1 stop17h 34m
KLM
Deal found 4/16![KLM logo]()
$1,020
This Qatar Airways deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/2910:39 am
ONT
- IST
2 stops34h 41m
Qatar Airways
Sun 5/105:00 pm
IST
- ONT
2 stops40h 59m
Qatar Airways
Deal found 4/16![Qatar Airways logo]()
$1,170
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated April 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated April 17, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 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 4/16![United Airlines logo]()
$738
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 pm
ONT
- FCO
2 stops26h 50m
Delta
Fri 5/16:30 am
FCO
- ONT
2 stops26h 14m
Delta
Deal found 4/13![Delta logo]()
$751
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1810:15 pm
ONT
- FCO
1 stop24h 20m
Delta
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/13![Delta logo]()
$758
This Ticket deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/13![Multiple Airlines logo]()
$715
This Ticket deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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
KLM
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
KLM
Deal found 4/15![KLM logo]()
$720
This Delta deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/197:05 am
ONT
- FCO
1 stop15h 30m
Delta
Tue 5/59:45 am
FCO
- ONT
1 stop17h 48m
Delta
Deal found 4/13![Delta logo]()
$749
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/234:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Wed 5/2710:40 am
KEF
- ONT
2 stops44h 09m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$677
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
- KEF
2 stops20h 25m
Multiple Airlines
Wed 6/310:40 am
KEF
- ONT
2 stops30h 25m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$753
This Alaska Airlines deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/286:00 am
ONT
- KEF
1 stop20h 00m
Alaska Airlines
Wed 6/312:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/14![Alaska Airlines logo]()
$754
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:03 pm
ONT
- KEF
1 stop33h 57m
Alaska Airlines
Fri 6/512:45 pm
KEF
- ONT
1 stop13h 02m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$701
This Trip.com deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:04 pm
ONT
- KEF
1 stop14h 56m
Multiple Airlines
Sat 6/610:40 am
KEF
- ONT
2 stops39h 52m
Multiple Airlines
Deal found 4/16![Multiple Airlines logo]()
$732
This Alaska Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/304:03 pm
ONT
- KEF
1 stop33h 57m
Alaska Airlines
Sat 6/612:45 pm
KEF
- ONT
1 stop13h 17m
Alaska Airlines
Deal found 4/16![Alaska Airlines logo]()
$761
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 17, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated April 17, 2026.
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:39 pm
ONT
- FCO
1 stop14h 26m
British Airways
Deal found 4/14![British Airways logo]()
$335
This Cheapflightsfares deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/14![British Airways logo]()
$343
This oojo deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/25:44 am
ONT
- FCO
1 stop21h 21m
British Airways
Deal found 4/13![British Airways logo]()
$345
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/31:50 pm
ONT
- FCO
1 stop14h 50m
United Airlines
Deal found 4/16![United Airlines logo]()
$346
This Cheapflightsfares deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure 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 4/13![British Airways logo]()
$348
This United Airlines deal was found by Cheapflights users on 4/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/41:50 pm
ONT
- FCO
3 stops34h 25m
United Airlines
Deal found 4/16![United Airlines logo]()
$350
This KLM deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:00 pm
ONT
- MAD
1 stop15h 15m
KLM
Deal found 4/14![KLM logo]()
$351
This Expedia deal was found by Cheapflights users on 4/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1910:29 am
ONT
- MAD
1 stop13h 36m
British Airways
Deal found 4/13![British Airways logo]()
$353
This oojo deal was found by Cheapflights users on 4/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Deal found 4/14![British Airways logo]()
$354
This oojo deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/112:27 pm
ONT
- PMI
2 stops18h 23m
British Airways
Deal found 4/15![British Airways logo]()
$354
This Air Canada deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/95:00 am
ONT
- FCO
2 stops21h 45m
Air Canada
Deal found 4/15![Air Canada logo]()
$355
This Delta deal was found by Cheapflights users on 4/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1210:59 pm
ONT
- MAD
2 stops25h 56m
Delta
Deal found 4/15![Delta 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 17, 2026.
Round-trip from | $677 (Trip.com) |
|---|---|
One-way from | $335 (Cheapflightsfares) |
Popular in | June |
Cheapest in | February |
Average price | $788 |
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 17, 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
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Tue 8/25
11:58 am-9:00 am
1 stop14h 02m
Reykjavik Keflavik Intl
Wed 9/2
12:45 pm-11:24 pm
1 stop17h 39m
$726
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 6/4
12:04 pm-9:00 am
1 stop13h 56m
Reykjavik Keflavik Intl
Thu 6/11
12:45 pm-11:11 pm
1 stop17h 26m
$754
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 5/28
6:00 am-9:00 am
1 stop20h 00m
Reykjavik Keflavik Intl
Wed 6/3
12:45 pm-6:47 pm
1 stop13h 02m
$754
OntarioReykjavik
ONT - KEF
ONTKEF
Ontario
Thu 8/20
7:57 pm-9:00 am
1 stop30h 03m
Reykjavik Keflavik Intl
Tue 8/25
12:45 pm-7:03 pm
1 stop13h 18m
$772
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 10/6
1:33 pm-1:40 pm
1 stop15h 07m
Rome Fiumicino
Tue 10/13
6:50 am-10:26 pm
2 stops24h 36m
$787
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 5/9
10:00 pm-7:35 am
1 stop24h 35m
Rome Fiumicino
Tue 5/19
6:30 am-5:10 pm
2 stops19h 40m
$788
OntarioRome
ONT - FCO
ONTFCO
Ontario
Tue 5/12
10:39 am-1:15 pm
1 stop17h 36m
Rome Fiumicino
Tue 5/19
3:25 pm-11:58 pm
1 stop17h 33m
$788
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sat 5/9
6:59 pm-7:35 am
2 stops27h 36m
Rome Fiumicino
Tue 5/19
11:00 am-10:59 pm
2 stops20h 59m
$793
OntarioRome
ONT - FCO
ONTFCO
Ontario
Sun 5/10
7:05 am-7:35 am
1 stop15h 30m
Rome Fiumicino
Mon 5/18
9:45 am-6:36 pm
1 stop17h 51m
$848
OntarioRome
ONT - FCO
ONTFCO
Ontario
Thu 5/7
1:30 pm-1:40 pm
1 stop15h 10m
Rome Fiumicino
Thu 5/14
2:20 pm-8:36 pm
1 stop15h 16m
$848
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-KEF
ONT-FCO
ONT-LHR
ONT-IST
ONT-ATH
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Europe
ONT-EU0
ONT-KEF
ONT-FCO
ONT-LHR
ONT-IST
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 April 17, 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.
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Crew
8.5
Overall
7.9
Comfort
7.9
Food
7.2
Boarding
8.1
Entertainment
7.8
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.
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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 17, 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$497 | Average$720 | 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% | |
| Cheapest$624 | Average$902 | FlexibilityNo cancel fee | On-time71% |