$236+ 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
Apr 7 — Apr 141
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 March 8, 2026.
Explore the most affordable flight options available from Ontario to Europe. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 8, 2026.
This British Airways deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:08 pm
ONT
- MAD
2 stops18h 22m
British Airways
Fri 4/2410:25 am
MAD
- ONT
1 stop19h 42m
British Airways
Deal found 3/3![British Airways logo]()
$542
This Finnair deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/17:00 am
ONT
- MAD
1 stop14h 15m
Multiple Airlines
Wed 12/912:00 pm
MAD
- ONT
2 stops19h 19m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$550
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/16:00 am
ONT
- MAD
2 stops26h 40m
Delta
Wed 12/96:00 am
MAD
- ONT
2 stops19h 12m
Delta
Deal found 3/3![Delta logo]()
$551
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1812:47 pm
ONT
- FCO
2 stops18h 38m
British Airways
Wed 8/261:10 pm
FCO
- ONT
1 stop19h 58m
British Airways
Deal found 3/3![British Airways logo]()
$564
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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
2 stops42h 11m
United Airlines
Thu 4/307:10 am
FCO
- ONT
2 stops24h 25m
United Airlines
Deal found 3/4![United Airlines logo]()
$565
This oojo deal was found by Cheapflights users on 3/6. 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.
Wed 8/128:15 am
ONT
- FCO
1 stop18h 50m
British Airways
Wed 8/261:10 pm
FCO
- ONT
1 stop18h 04m
British Airways
Deal found 3/6![British Airways logo]()
$572
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:49 pm
ONT
- MAD
1 stop14h 26m
Delta
Tue 4/286:00 am
MAD
- ONT
2 stops20h 15m
Delta
Deal found 3/3![Delta logo]()
$572
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Tue 4/2110:25 am
MAD
- ONT
1 stop19h 02m
British Airways
Deal found 3/3![British Airways logo]()
$573
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Wed 4/295:55 am
MAD
- ONT
2 stops25h 50m
United Airlines
Deal found 3/3![United Airlines logo]()
$575
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/237:00 am
ONT
- FCO
1 stop15h 45m
United Airlines
Fri 12/119:45 am
FCO
- ONT
2 stops19h 35m
United Airlines
Deal found 3/8![United Airlines logo]()
$576
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:19 pm
ONT
- LIS
2 stops37h 46m
British Airways
Tue 5/54:30 pm
LIS
- ONT
2 stops31h 52m
British Airways
Deal found 3/3![British Airways logo]()
$577
This Delta deal was found by Cheapflights users on 3/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/27:00 am
ONT
- FCO
1 stop18h 30m
Delta
Tue 12/812:45 pm
FCO
- ONT
2 stops36h 27m
Delta
Deal found 3/8![Delta logo]()
$577
Best flights from Ontario to EuropeDiscover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 8, 2026.
Discover carefully curated flight deals from Ontario to Europe that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 8, 2026.
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
ONT
- MAD
1 stop20h 15m
Delta
Tue 9/86:00 am
MAD
- ONT
2 stops19h 14m
Delta
Deal found 3/3![Delta logo]()
$572
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2311:59 pm
ONT
- LIS
2 stops27h 16m
United Airlines
Wed 4/110:25 am
LIS
- ONT
2 stops20h 06m
United Airlines
Deal found 3/5![United Airlines logo]()
$582
This Finnair deal was found by Cheapflights users on 3/6. 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 Finnair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/216:00 am
ONT
- MAD
1 stop23h 25m
Multiple Airlines
Tue 4/283:55 pm
MAD
- ONT
1 stop27h 14m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$600
This KLM deal was found by Cheapflights users on 3/7. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/217:00 am
ONT
- DUB
1 stop17h 45m
KLM
Wed 9/211:10 am
DUB
- ONT
2 stops19h 30m
KLM
Deal found 3/7![KLM logo]()
$702
This British Airways deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/237:30 am
ONT
- LHR
1 stop16h 35m
British Airways
Sun 5/104:25 pm
LHR
- ONT
1 stop15h 21m
British Airways
Deal found 3/3![British Airways logo]()
$824
This Turkish Airlines deal was found by Cheapflights users on 3/5. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:59 pm
ONT
- FCO
2 stops38h 36m
Turkish Airlines
Thu 9/178:00 pm
FCO
- ONT
2 stops34h 29m
Turkish Airlines
Deal found 3/5![Turkish Airlines logo]()
$1,083
This Alaska Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/23:26 pm
ONT
- FCO
1 stop36h 49m
Alaska Airlines
Thu 5/73:25 pm
FCO
- ONT
1 stop17h 34m
Alaska Airlines
Deal found 3/3![Alaska Airlines logo]()
$1,179
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/147:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Wed 4/2211:15 am
MAD
- ONT
2 stops20h 16m
United Airlines
Deal found 3/3![United Airlines logo]()
$600
This Air Serbia deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/210:00 pm
ONT
- ATH
2 stops34h 15m
Air Serbia
Tue 6/164:30 pm
ATH
- ONT
2 stops40h 10m
Air Serbia
Deal found 3/3![Air Serbia logo]()
$1,322
This Delta deal was found by Cheapflights users on 3/8. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/55:55 pm
ONT
- ATH
2 stops27h 55m
Delta
Thu 5/143:30 pm
ATH
- ONT
2 stops29h 27m
Delta
Deal found 3/8![Delta logo]()
$698
This United Airlines deal was found by Cheapflights users on 3/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/3011:05 am
ONT
- FCO
1 stop17h 35m
United Airlines
Tue 4/79:45 am
FCO
- ONT
1 stop21h 46m
United Airlines
Deal found 3/8![United Airlines logo]()
$637
This KLM deal was found by Cheapflights users on 3/5. 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.
Sat 7/257:00 am
ONT
- FCO
1 stop15h 35m
KLM
Sat 8/229:45 am
FCO
- ONT
1 stop17h 16m
KLM
Deal found 3/5![KLM logo]()
$717
This United Airlines deal was found by Cheapflights users on 3/7. 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.
Wed 4/291:27 pm
ONT
- FCO
1 stop14h 58m
United Airlines
Wed 5/63:40 pm
FCO
- ONT
1 stop16h 19m
United Airlines
Deal found 3/7![United Airlines logo]()
$637
This Delta deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/2810:25 pm
ONT
- DUB
1 stop26h 20m
Delta
Wed 4/811:00 am
DUB
- ONT
1 stop18h 00m
Delta
Deal found 3/4![Delta logo]()
$737
This United Airlines deal was found by Cheapflights users on 3/6. 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.
Mon 4/205:10 am
ONT
- FCO
1 stop22h 10m
United Airlines
Mon 4/2712:25 pm
FCO
- ONT
2 stops41h 11m
United Airlines
Deal found 3/6![United Airlines logo]()
$652
This British Airways deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/2812:46 pm
ONT
- LIS
2 stops18h 49m
British Airways
Wed 8/57:20 am
LIS
- ONT
2 stops22h 54m
British Airways
Deal found 3/3![British Airways logo]()
$891
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/151:29 pm
ONT
- LHR
1 stop12h 31m
Delta
Tue 5/58:40 am
LHR
- ONT
2 stops20h 20m
Delta
Deal found 3/7![Delta logo]()
$744
This KLM deal was found by Cheapflights users on 3/6. 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 4/712:57 pm
ONT
- MAD
1 stop14h 18m
KLM
Wed 4/1512:45 pm
MAD
- ONT
1 stop17h 15m
KLM
Deal found 3/6![KLM logo]()
$878
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/146:05 am
ONT
- LIS
2 stops18h 15m
United Airlines
Tue 4/2110:25 am
LIS
- ONT
2 stops20h 06m
United Airlines
Deal found 3/4![United Airlines logo]()
$682
This KLM deal was found by Cheapflights users on 3/6. 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.
Wed 8/512:00 pm
ONT
- CDG
1 stop13h 35m
Multiple Airlines
Thu 8/2011:00 am
CDG
- ONT
1 stop14h 14m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,052
This British Airways deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/243:19 pm
ONT
- MAD
2 stops19h 11m
British Airways
Mon 3/303:55 pm
MAD
- ONT
1 stop17h 04m
British Airways
Deal found 3/4![British Airways logo]()
$970
This KLM deal was found by Cheapflights users on 3/7. 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 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 3/7![KLM logo]()
$887
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/146:05 am
ONT
- LIS
2 stops18h 15m
United Airlines
Thu 4/2310:25 am
LIS
- ONT
2 stops19h 25m
United Airlines
Deal found 3/5![United Airlines logo]()
$682
This Delta deal was found by Cheapflights users on 3/7. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/231:29 pm
ONT
- LHR
2 stops15h 36m
Delta
Mon 5/46:30 am
LHR
- ONT
2 stops22h 30m
Delta
Deal found 3/7![Delta logo]()
$848
This British Airways deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/246:00 am
ONT
- FRA
1 stop17h 15m
British Airways
Mon 4/610:55 am
FRA
- ONT
1 stop16h 47m
British Airways
Deal found 3/3![British Airways logo]()
$972
This KLM deal was found by Cheapflights users on 3/5. 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.
Sun 4/197:05 am
ONT
- ATH
1 stop17h 55m
KLM
Wed 4/299:45 am
ATH
- ONT
1 stop18h 48m
KLM
Deal found 3/5![KLM logo]()
$903
This United Airlines deal was found by Cheapflights users on 3/6. 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 4/267:00 am
ONT
- ATH
1 stop17h 35m
United Airlines
Wed 5/610:25 am
ATH
- ONT
2 stops20h 11m
United Airlines
Deal found 3/6![United Airlines logo]()
$698
This British Airways deal was found by Cheapflights users on 3/6. 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.
Mon 4/276:00 am
ONT
- FRA
1 stop17h 45m
British Airways
Sun 5/1010:55 am
FRA
- ONT
1 stop21h 51m
British Airways
Deal found 3/6![British Airways logo]()
$989
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 3/315:10 am
ONT
- FCO
1 stop22h 10m
United Airlines
Sun 4/53:40 pm
FCO
- ONT
1 stop16h 05m
United Airlines
Deal found 3/4![United Airlines logo]()
$698
This Delta deal was found by Cheapflights users on 3/6. 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.
Sun 4/510:25 pm
ONT
- BCN
1 stop29h 25m
Delta
Fri 4/1711:00 am
BCN
- ONT
1 stop19h 00m
Delta
Deal found 3/6![Delta logo]()
$952
Last-minute flights from Ontario to EuropeDiscover last-minute flight deals from Ontario to Europe. Data last updated March 8, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Europe. Data last updated March 8, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 3/5. 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.
Sun 3/1510:25 pm
ONT
- FCO
1 stop24h 30m
Delta
Wed 4/19:45 am
FCO
- ONT
1 stop20h 15m
Delta
Deal found 3/5![Delta logo]()
$577
This United Airlines deal was found by Cheapflights users on 3/5. 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 3/2311:59 pm
ONT
- LIS
2 stops27h 16m
United Airlines
Thu 4/212:20 pm
LIS
- ONT
2 stops18h 11m
United Airlines
Deal found 3/5![United Airlines logo]()
$582
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 4/46:49 pm
ONT
- FCO
1 stop33h 51m
United Airlines
Wed 4/156:50 am
FCO
- ONT
2 stops43h 57m
United Airlines
Deal found 3/4![United Airlines logo]()
$581
This KLM deal was found by Cheapflights users on 3/5. 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.
Sat 4/410:25 pm
ONT
- FCO
1 stop24h 10m
KLM
Wed 4/156:30 am
FCO
- ONT
2 stops19h 45m
KLM
Deal found 3/5![KLM logo]()
$582
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/137:00 am
ONT
- MAD
2 stops16h 05m
United Airlines
Wed 4/295:55 am
MAD
- ONT
2 stops25h 50m
United Airlines
Deal found 3/3![United Airlines logo]()
$575
This British Airways deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:08 pm
ONT
- MAD
2 stops18h 22m
British Airways
Fri 4/2410:25 am
MAD
- ONT
1 stop19h 42m
British Airways
Deal found 3/3![British Airways logo]()
$542
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/1411:59 pm
ONT
- MAD
1 stop24h 06m
British Airways
Tue 4/2110:25 am
MAD
- ONT
1 stop19h 02m
British Airways
Deal found 3/3![British Airways logo]()
$573
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/142:08 pm
ONT
- MAD
2 stops18h 22m
British Airways
Wed 4/2210:25 am
MAD
- ONT
1 stop19h 42m
British Airways
Deal found 3/3![British Airways logo]()
$580
This Delta deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:49 pm
ONT
- MAD
1 stop14h 26m
Delta
Tue 4/286:00 am
MAD
- ONT
2 stops20h 15m
Delta
Deal found 3/3![Delta logo]()
$572
This United Airlines deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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
2 stops42h 11m
United Airlines
Thu 4/307:10 am
FCO
- ONT
2 stops24h 25m
United Airlines
Deal found 3/4![United Airlines logo]()
$565
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/1912:19 pm
ONT
- LIS
2 stops37h 46m
British Airways
Tue 5/54:30 pm
LIS
- ONT
2 stops31h 52m
British Airways
Deal found 3/3![British Airways logo]()
$577
This United Airlines deal was found by Cheapflights users on 3/5. 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 4/205:10 am
ONT
- MAD
2 stops18h 50m
United Airlines
Wed 4/2912:45 pm
MAD
- ONT
2 stops42h 50m
United Airlines
Deal found 3/5![United Airlines logo]()
$579
One-way flights from Ontario to EuropeSearch for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated March 8, 2026.
Search for one-way flight options from Ontario to Europe. Find affordable one-way fares based on user searches. Data last updated March 8, 2026.
This oojo deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 8/412:46 pm
ONT
- FCO
2 stops18h 39m
British Airways
Deal found 3/4![British Airways logo]()
$236
This oojo deal was found by Cheapflights users on 3/6. 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 8/1012:47 pm
ONT
- FCO
2 stops18h 13m
British Airways
Deal found 3/6![British Airways logo]()
$260
This United Airlines deal was found by Cheapflights users on 3/5. 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 8/26:30 am
ONT
- FCO
1 stop16h 25m
United Airlines
Deal found 3/5![United Airlines logo]()
$271
This Iberia deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/510:50 am
ONT
- ATH
2 stops20h 15m
Multiple Airlines
Deal found 3/3![Multiple Airlines logo]()
$275
This Iberia deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/58:15 am
ONT
- ATH
1 stop17h 30m
Iberia
Deal found 3/3![Iberia logo]()
$277
This oojo deal was found by Cheapflights users on 3/5. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/14:54 pm
ONT
- ATH
2 stops23h 16m
British Airways
Deal found 3/5![British Airways logo]()
$291
This oojo deal was found by Cheapflights users on 3/7. 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.
Mon 8/174:54 pm
ONT
- ATH
2 stops34h 16m
British Airways
Deal found 3/7![British Airways logo]()
$297
This United Airlines deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ONT
- ATH
2 stops18h 00m
United Airlines
Deal found 3/3![United Airlines logo]()
$302
This United Airlines deal was found by Cheapflights users on 3/7. 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 9/11:18 pm
ONT
- ATH
2 stops34h 52m
United Airlines
Deal found 3/7![United Airlines logo]()
$317
This oojo deal was found by Cheapflights users on 3/4. Clicking the “Pick Dates” 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 8/114:54 pm
ONT
- LIS
2 stops33h 11m
British Airways
Deal found 3/4![British Airways logo]()
$319
This oojo deal was found by Cheapflights users on 3/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1912:47 pm
ONT
- FCO
2 stops19h 08m
British Airways
Deal found 3/3![British Airways logo]()
$321
This Trip.com deal was found by Cheapflights users on 3/5. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/309:10 am
ONT
- BCN
1 stop22h 15m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$329
Find flight deals from Ontario to Europe
Keep the following information in mind while searching for Ontario to Europe flight deals. Data was last updated March 8, 2026.
Round-trip from | $542 (British Airways) |
|---|---|
One-way from | $236 (oojo) |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Europe that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 8, 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
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 8/18
7:00 am-12:15 pm
1 stop20h 15m
Madrid Barajas
Tue 9/8
6:00 am-4:14 pm
2 stops19h 14m
$572
OntarioLisbon
ONT - LIS
ONTLIS
Ontario
Mon 3/23
11:59 pm-10:15 am
2 stops27h 16m
Lisbon Humberto Delgado
Wed 4/1
10:25 am-10:31 pm
2 stops20h 06m
$582
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 4/21
6:00 am-2:25 pm
1 stop23h 25m
Madrid Barajas
Tue 4/28
3:55 pm-10:09 am
1 stop27h 14m
$600
OntarioMadrid
ONT - MAD
ONTMAD
Ontario
Tue 4/14
7:00 am-8:05 am
2 stops16h 05m
Madrid Barajas
Wed 4/22
11:15 am-10:31 pm
2 stops20h 16m
$600
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 3/30
11:05 am-1:40 pm
1 stop17h 35m
Rome Fiumicino
Tue 4/7
9:45 am-10:31 pm
1 stop21h 46m
$637
OntarioRome
ONT - FCO
ONTFCO
Ontario
Wed 4/29
1:27 pm-1:25 pm
1 stop14h 58m
Rome Fiumicino
Wed 5/6
3:40 pm-10:59 pm
1 stop16h 19m
$637
OntarioRome
ONT - FCO
ONTFCO
Ontario
Mon 4/20
5:10 am-12:20 pm
1 stop22h 10m
Rome Fiumicino
Mon 4/27
12:25 pm-8:36 pm
2 stops41h 11m
$652
OntarioLisbon
ONT - LIS
ONTLIS
Ontario
Tue 4/14
6:05 am-8:20 am
2 stops18h 15m
Lisbon Humberto Delgado
Tue 4/21
10:25 am-10:31 pm
2 stops20h 06m
$682
OntarioLisbon
ONT - LIS
ONTLIS
Ontario
Tue 4/14
6:05 am-8:20 am
2 stops18h 15m
Lisbon Humberto Delgado
Thu 4/23
10:25 am-9:50 pm
2 stops19h 25m
$682
OntarioAthens
ONT - ATH
ONTATH
Ontario
Tue 5/5
5:55 pm-7:50 am
2 stops27h 55m
Athens Eleftherios V.
Thu 5/14
3:30 pm-10:57 am
2 stops29h 27m
$698
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-LHR
ONT-MAD
ONT-LIS
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-FCO
ONT-LHR
ONT-MAD
ONT-LIS
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 $448). Flying from Ontario to Europe in June is currently the most expensive (average of $743). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Europe
Get insights into the airlines that provide service to Europe. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Europe. Reviews last updated March 8, 2026.
See what other customers who have flown with Delta, United Airlines, and American 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.
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Overall
7.9
Entertainment
7.8
Boarding
8.1
Crew
8.5
Comfort
7.9
Food
7.2
Reviews
1 / 20
10.0
ExcellentAaron,Oct 2024
LAX - LHR
Related info for your journey
Find useful and relevant information for your journey from Ontario to Europe. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
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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 March 8, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Europe countries
Consider these flights traveling to countries located in Europe.
Ontario to Europe flights
Consider these flights traveling from Ontario to Europe.
Top 6 airlines flying from Ontario to Europe
Discover the top 6 airlines that operate flights from Ontario to Europe. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated March 8, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$439 | Average$812 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$444 | Average$888 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$497 | Average$862 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$504 | Average$989 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$515 | Average$915 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$580 | Average$947 | FlexibilityNo cancel fee | On-time75% |