$208+ 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 11/18. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — CPH
Jul 29 — Aug 51
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Europe with Cheapflights
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Cheapest flights from Ontario to EuropeExplore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
Explore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 29, 2026.
This Virgin Atlantic deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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.
Fri 6/265:59 pm
ONT
- LHR
1 stop13h 36m
Virgin Atlantic
Sat 7/1110:55 am
LHR
- ONT
1 stop19h 28m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$425
This Virgin Atlantic deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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.
Thu 12/1712:00 pm
ONT
- LHR
1 stop15h 40m
Virgin Atlantic
Tue 12/2212:20 pm
LHR
- ONT
1 stop18h 23m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$429
This Virgin Atlantic deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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.
Sun 9/63:35 pm
ONT
- CDG
2 stops21h 25m
Virgin Atlantic
Wed 9/167:30 am
CDG
- ONT
2 stops24h 10m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$512
This Virgin Atlantic deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Virgin Atlantic is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/207:05 am
ONT
- CDG
2 stops16h 35m
Virgin Atlantic
Thu 8/277:30 am
CDG
- ONT
2 stops25h 04m
Virgin Atlantic
Deal found 6/25![Virgin Atlantic logo]()
$539
This Virgin Atlantic deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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.
Thu 9/107:05 am
ONT
- CDG
2 stops20h 10m
Virgin Atlantic
Sun 9/1311:00 am
CDG
- ONT
2 stops21h 47m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$622
This Booking.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1710:54 am
ONT
- FRA
1 stop14h 56m
Multiple Airlines
Mon 8/3111:30 am
FRA
- ONT
1 stop14h 40m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$683
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta 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
Delta
Fri 10/231:20 pm
BCN
- ONT
1 stop18h 23m
Delta
Deal found 6/25![Delta logo]()
$707
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 9/1912:17 pm
ONT
- MAD
1 stop14h 58m
Delta
Thu 10/89:50 am
MAD
- ONT
1 stop17h 28m
Delta
Deal found 6/24![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 10/79:55 am
ONT
- BCN
2 stops22h 15m
Delta
Fri 10/231:20 pm
BCN
- ONT
1 stop18h 23m
Delta
Deal found 6/24![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/95:50 pm
ONT
- BCN
1 stop32h 20m
Delta
Wed 10/211:20 pm
BCN
- ONT
1 stop18h 23m
Delta
Deal found 6/25![Delta logo]()
$712
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 10/69:55 am
ONT
- BCN
2 stops20h 40m
Delta
Wed 10/216:20 am
BCN
- ONT
2 stops18h 52m
Delta
Deal found 6/24![Delta logo]()
$715
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 9/2010:00 pm
ONT
- MAD
2 stops26h 55m
Delta
Fri 10/1612:45 pm
MAD
- ONT
2 stops31h 31m
Delta
Deal found 6/24![Delta logo]()
$716
Best flights from Ontario to EuropeDiscover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
Discover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 29, 2026.
This KLM deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1311:56 am
ONT
- BCN
1 stop14h 14m
KLM
Fri 8/2811:30 am
BCN
- ONT
1 stop16h 00m
KLM
Deal found 6/26![KLM logo]()
$729
This Delta deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am
ONT
- FCO
1 stop19h 20m
Delta
Thu 12/101:30 pm
FCO
- ONT
1 stop17h 44m
Delta
Deal found 6/25![Delta logo]()
$762
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 8/101:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Wed 8/262:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 6/24![United Airlines logo]()
$765
This British Airways deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:33 pm
ONT
- FCO
1 stop14h 32m
British Airways
Wed 8/261:10 pm
FCO
- ONT
1 stop18h 49m
British Airways
Deal found 6/24![British Airways logo]()
$784
This Iberia deal was found by Cheapflights users on 6/28. 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 Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/192:22 pm
ONT
- MAD
1 stop15h 03m
Iberia
Fri 10/163:55 pm
MAD
- ONT
1 stop16h 11m
Iberia
Deal found 6/28![Iberia logo]()
$813
This Condor deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Condor is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1510:54 am
ONT
- FRA
1 stop14h 36m
Multiple Airlines
Fri 8/2111:40 am
FRA
- ONT
1 stop19h 58m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$827
This Qatar Airways deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:04 pm
ONT
- IST
2 stops38h 11m
Qatar Airways
Wed 9/238:05 pm
IST
- ONT
2 stops37h 19m
Qatar Airways
Deal found 6/27![Qatar Airways logo]()
$1,015
This Alaska Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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.
Fri 12/2512:00 pm
ONT
- LHR
1 stop16h 20m
Alaska Airlines
Fri 1/82:45 pm
LHR
- ONT
1 stop15h 54m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$1,052
This Turkish Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/111:59 pm
ONT
- ATH
2 stops22h 56m
Turkish Airlines
Wed 9/93:55 am
ATH
- ONT
2 stops26h 18m
Turkish Airlines
Deal found 6/26![Turkish Airlines logo]()
$1,204
This JetBlue deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure JetBlue is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/2511:18 pm
ONT
- LHR
1 stop13h 27m
JetBlue
Mon 8/38:15 am
LHR
- ONT
1 stop22h 21m
JetBlue
Deal found 6/27![JetBlue logo]()
$1,358
This KLM deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 8/2011:56 am
ONT
- BCN
1 stop14h 14m
KLM
Mon 8/2411:00 am
BCN
- ONT
1 stop16h 30m
KLM
Deal found 6/24![KLM logo]()
$767
This British Airways deal was found by Cheapflights users on 6/28. 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.
Sun 10/1110:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Tue 10/2012:40 pm
MAD
- ONT
1 stop16h 14m
British Airways
Deal found 6/28![British Airways logo]()
$819
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/275:00 am
ONT
- MAD
2 stops18h 00m
United Airlines
Mon 11/96:00 am
MAD
- ONT
2 stops20h 55m
United Airlines
Deal found 6/25![United Airlines logo]()
$832
This Delta deal was found by Cheapflights users on 6/28. 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.
Fri 9/1810:00 pm
ONT
- MAD
1 stop29h 15m
Delta
Thu 10/159:50 am
MAD
- ONT
1 stop21h 11m
Delta
Deal found 6/28![Delta logo]()
$856
This KLM deal was found by Cheapflights users on 6/28. 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 8/167:05 am
ONT
- FRA
1 stop16h 50m
KLM
Sun 8/2310:40 am
FRA
- ONT
1 stop16h 50m
KLM
Deal found 6/28![KLM logo]()
$843
This United Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 11/86:46 am
ONT
- BCN
1 stop21h 29m
United Airlines
Thu 11/121:35 pm
BCN
- ONT
2 stops37h 54m
United Airlines
Deal found 6/24![United Airlines logo]()
$853
This British Airways deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:00 am
ONT
- FRA
1 stop17h 15m
British Airways
Sun 11/810:15 am
FRA
- ONT
1 stop21h 08m
British Airways
Deal found 6/26![British Airways logo]()
$856
This Delta deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 9/1612:17 pm
ONT
- FCO
2 stops19h 18m
Delta
Tue 9/2212:20 pm
FCO
- ONT
1 stop19h 20m
Delta
Deal found 6/24![Delta logo]()
$861
This Icelandair deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/110:55 am
ONT
- LHR
2 stops17h 00m
Multiple Airlines
Wed 9/309:25 pm
LHR
- ONT
2 stops33h 10m
Multiple Airlines
Deal found 6/26![Multiple Airlines logo]()
$996
This KLM deal was found by Cheapflights users on 6/28. 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.
Fri 10/2312:18 pm
ONT
- MAD
1 stop14h 57m
KLM
Fri 10/3011:55 am
MAD
- ONT
1 stop18h 06m
KLM
Deal found 6/28![KLM logo]()
$848
This British Airways deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1510:25 am
ONT
- MAD
1 stop13h 40m
British Airways
Sat 10/2412:40 pm
MAD
- ONT
1 stop16h 24m
British Airways
Deal found 6/26![British Airways logo]()
$863
This United Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/51:56 pm
ONT
- FCO
2 stops36h 49m
United Airlines
Tue 9/159:45 am
FCO
- ONT
1 stop22h 14m
United Airlines
Deal found 6/26![United Airlines logo]()
$865
This Delta deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2211:54 am
ONT
- BCN
1 stop14h 16m
Delta
Thu 10/1511:00 am
BCN
- ONT
1 stop20h 01m
Delta
Deal found 6/27![Delta logo]()
$873
This Qatar Airways deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:00 pm
ONT
- IST
2 stops38h 15m
Qatar Airways
Tue 9/158:05 pm
IST
- ONT
2 stops32h 58m
Qatar Airways
Deal found 6/27![Qatar Airways logo]()
$1,079
This Icelandair deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1610:55 am
ONT
- LHR
2 stops17h 00m
Multiple Airlines
Tue 9/229:25 pm
LHR
- ONT
2 stops32h 35m
Multiple Airlines
Deal found 6/25![Multiple Airlines logo]()
$1,004
This Alaska Airlines deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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.
Fri 12/2512:00 pm
ONT
- LHR
1 stop16h 20m
Alaska Airlines
Sat 1/92:45 pm
LHR
- ONT
1 stop15h 54m
Alaska Airlines
Deal found 6/24![Alaska Airlines logo]()
$1,112
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/251:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Sat 9/52:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 6/25![United Airlines logo]()
$867
This British Airways deal was found by Cheapflights users on 6/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/67:20 am
ONT
- FRA
1 stop16h 25m
British Airways
Tue 10/1310:55 am
FRA
- ONT
1 stop21h 11m
British Airways
Deal found 6/27![British Airways logo]()
$873
This KLM deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 9/1512:17 pm
ONT
- MAD
1 stop14h 58m
KLM
Thu 10/89:50 am
MAD
- ONT
1 stop17h 28m
KLM
Deal found 6/24![KLM logo]()
$905
This FlightHub deal was found by Cheapflights users on 6/28. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/110:54 am
ONT
- BCN
2 stops26h 16m
Multiple Airlines
Sat 8/158:00 am
BCN
- ONT
2 stops24h 52m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$1,010
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated June 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated June 29, 2026 and is based on user searches.
This Virgin Atlantic deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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.
Fri 6/265:59 pm
ONT
- LHR
1 stop13h 36m
Virgin Atlantic
Sat 7/1110:55 am
LHR
- ONT
1 stop19h 28m
Virgin Atlantic
Deal found 6/23![Virgin Atlantic logo]()
$425
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/55:26 pm
ONT
- FCO
1 stop34h 49m
Alaska Airlines
Fri 8/213:15 pm
FCO
- ONT
1 stop17h 09m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$802
This Alaska Airlines deal was found by Cheapflights users on 6/28. 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 Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/66:02 am
ONT
- FCO
1 stop22h 13m
Alaska Airlines
Thu 8/203:15 pm
FCO
- ONT
1 stop17h 09m
Alaska Airlines
Deal found 6/28![Alaska Airlines logo]()
$797
This Alaska Airlines deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/126:02 am
ONT
- FCO
1 stop22h 13m
Alaska Airlines
Wed 7/293:25 pm
FCO
- ONT
1 stop16h 46m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$799
This United Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/141:50 pm
ONT
- FCO
1 stop14h 50m
United Airlines
Tue 9/226:50 am
FCO
- ONT
2 stops22h 11m
United Airlines
Deal found 6/25![United Airlines logo]()
$815
This Alaska Airlines deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:02 am
ONT
- FCO
1 stop22h 13m
Alaska Airlines
Tue 9/223:15 pm
FCO
- ONT
1 stop29h 01m
Alaska Airlines
Deal found 6/25![Alaska Airlines logo]()
$832
This Air France deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air France is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2011:48 am
ONT
- MAD
1 stop15h 27m
Multiple Airlines
Mon 10/199:50 am
MAD
- ONT
1 stop17h 28m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$741
This KLM deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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 7/2111:48 am
ONT
- MAD
1 stop15h 27m
KLM
Tue 8/259:50 am
MAD
- ONT
1 stop19h 03m
KLM
Deal found 6/24![KLM logo]()
$771
This United Airlines deal was found by Cheapflights users on 6/28. 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 7/221:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Wed 8/199:45 am
FCO
- ONT
1 stop21h 50m
United Airlines
Deal found 6/28![United Airlines logo]()
$777
This Virgin Atlantic deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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.
Fri 7/2411:59 am
ONT
- LHR
1 stop16h 11m
Virgin Atlantic
Sun 8/29:40 am
LHR
- ONT
2 stops22h 08m
Virgin Atlantic
Deal found 6/24![Virgin Atlantic logo]()
$796
This United Airlines deal was found by Cheapflights users on 6/28. 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.
Sun 7/261:18 pm
ONT
- FCO
1 stop14h 02m
United Airlines
Sun 8/232:20 pm
FCO
- ONT
1 stop15h 33m
United Airlines
Deal found 6/28![United Airlines logo]()
$827
This KAYAK deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/281:18 pm
ONT
- FCO
1 stop14h 02m
Lufthansa
Wed 8/192:20 pm
FCO
- ONT
1 stop15h 33m
Lufthansa
Deal found 6/25![Lufthansa logo]()
$826
One-way flights from Ontario to EuropeSearch for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated June 29, 2026.
This Priceline deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1812:00 pm
ONT
- LHR
1 stop16h 20m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$208
This Booking.com deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/283:14 pm
ONT
- LHR
1 stop15h 51m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$209
This Priceline deal was found by Cheapflights users on 6/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Priceline is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:13 am
ONT
- LHR
1 stop19h 52m
Alaska Airlines
Deal found 6/26![Alaska Airlines logo]()
$258
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/49:36 am
ONT
- LGW
2 stops40h 24m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$287
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:17 am
ONT
- LGW
2 stops41h 43m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$291
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/293:40 pm
ONT
- LGW
2 stops34h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$297
This Cheapflightsfares deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” 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.
Fri 8/147:05 am
ONT
- AMS
1 stop16h 35m
British Airways
Deal found 6/24![British Airways logo]()
$316
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/315:34 am
ONT
- AMS
1 stop18h 06m
British Airways
Deal found 6/25![British Airways logo]()
$318
This Kiwi.com deal was found by Cheapflights users on 6/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/33:40 pm
ONT
- LGW
2 stops34h 20m
Multiple Airlines
Deal found 6/24![Multiple Airlines logo]()
$318
This Cheapflightsfares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/125:34 am
ONT
- ATH
1 stop20h 11m
British Airways
Deal found 6/23![British Airways logo]()
$319
This Kiwi.com deal was found by Cheapflights users on 6/28. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/19:36 am
ONT
- BCN
3 stops52h 49m
Multiple Airlines
Deal found 6/28![Multiple Airlines logo]()
$319
This Cheapflightsfares deal was found by Cheapflights users on 6/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/42:59 pm
ONT
- LHR
1 stop13h 01m
British Airways
Deal found 6/25![British Airways logo]()
$320
Find flight deals from Ontario to Europe
Keep the following information in mind while searching for Ontario to Europe flight deals. Data was last updated June 29, 2026.
Round-trip from | $429 (Virgin Atlantic) |
|---|---|
One-way from | $208 (Priceline) |
Popular in | June |
Cheapest in | February |
Average price | $1,379 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 29, 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
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Thu 8/13
11:56 am-11:10 am
1 stop14h 14m
Barcelona-El Prat
Fri 8/28
11:30 am-6:30 pm
1 stop16h 00m
$729
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 11/25
7:00 am-11:20 am
1 stop19h 20m
Rome Fiumicino
Thu 12/10
1:30 pm-10:14 pm
1 stop17h 44m
$762
Quickest round-trip
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 8/10
1:18 pm-12:20 pm
1 stop14h 02m
Rome Fiumicino
Wed 8/26
2:20 pm-8:53 pm
1 stop15h 33m
$765
OntarioBarcelona
ONT - BCN
ONTBCN
Ontario
Thu 8/20
11:56 am-11:10 am
1 stop14h 14m
Barcelona-El Prat
Mon 8/24
11:00 am-6:30 pm
1 stop16h 30m
$767
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 8/10
12:33 pm-12:05 pm
1 stop14h 32m
Rome Fiumicino
Wed 8/26
1:10 pm-10:59 pm
1 stop18h 49m
$784
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Sat 9/19
2:22 pm-2:25 pm
1 stop15h 03m
Madrid Barajas
Fri 10/16
3:55 pm-11:06 pm
1 stop16h 11m
$813
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Sun 10/11
10:25 am-9:05 am
1 stop13h 40m
Madrid Barajas
Tue 10/20
12:40 pm-7:54 pm
1 stop16h 14m
$819
OntarioFrankfurt am Main
ONT - FRA
ONTFRA
Ontario
Sat 8/15
10:54 am-10:30 am
1 stop14h 36m
Frankfurt am Main
Fri 8/21
11:40 am-10:38 pm
1 stop19h 58m
$827
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 10/27
5:00 am-7:00 am
2 stops18h 00m
Madrid Barajas
Mon 11/9
6:00 am-5:55 pm
2 stops20h 55m
$832
OntarioFrankfurt am Main
ONT - FRA
ONTFRA
Ontario
Sun 8/16
7:05 am-8:55 am
1 stop16h 50m
Frankfurt am Main
Sun 8/23
10:40 am-6:30 pm
1 stop16h 50m
$843
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-LHR
ONT-MAD
ONT-FCO
ONT-BCN
ONT-FRA
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Europe
ONT-EU0
ONT-LHR
ONT-MAD
ONT-FCO
ONT-BCN
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 $891). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Europe
Get insights into the airlines that provide service to Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Europe. Reviews last updated June 29, 2026.
See what other customers who have flown with KLM,Delta, andUnited Airlines from Ontario to Europe have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Food
7.3
Overall
7.8
Boarding
7.8
Crew
8.4
Entertainment
7.2
Comfort
7.7
Reviews
1 / 20
6.0
GoodAnonymous,Apr 2026
OKC - ATL
Related info for your journey
Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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Alternative routes for Ontario to Europe
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Europe by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Europe by cabin class
Find flights from Ontario to Europe, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Europe flights
Browse other Ontario and Europe flight options. Last updated on June 29, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Europe countries
Consider these flights traveling to countries located in Europe.
Ontario to Europe flights
Consider these flights traveling from Ontario to Europe.
Top 6 airlines flying from Ontario to Europe
Discover the top 6 airlines that operate flights from Ontario to Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated June 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$702 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$497 | Average$687 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$876 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$907 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$557 | Average$973 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$580 | Average$967 | FlexibilityNo cancel fee | On-time75% |