$378+ Cheap flights from Ontario (ONT) to Greece
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
Oct 18 — Oct 251
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Greece 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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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Greece
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Cheapest flights from Ontario to GreeceExplore the most affordable flight options available from Ontario to Greece. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
Explore the most affordable flight options available from Ontario to Greece. Find the lowest fares from popular airlines and budget airlines, with prices last updated on September 18, 2026.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/410:00 pm -
1 stop25h 20m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$695
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/312:17 pm -
2 stops33h 33m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/210:00 pm -
2 stops53h 20m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$710
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/611:56 am -
2 stops24h 59m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/2911:56 am -
2 stops20h 44m
Thu 11/56:10 am -
2 stops26h 33m
Deal found 9/14![Delta logo]()
$728
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/86:20 am -
2 stops30h 40m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$774
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/76:00 pm -
2 stops43h 00m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$780
This KLM deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:16 pm -
2 stops23h 29m
Tue 11/109:35 pm -
2 stops28h 49m
Deal found 9/17![KLM logo]()
$791
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/410:00 pm -
1 stop25h 20m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$812
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/312:17 pm -
2 stops39h 03m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$817
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/210:00 pm -
2 stops47h 50m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$828
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/67:07 am -
2 stops29h 48m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$831
Best flights from Ontario to GreeceDiscover carefully curated flight deals from Ontario to Greece that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
Discover carefully curated flight deals from Ontario to Greece that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated September 18, 2026.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/49:52 am -
2 stops27h 08m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$714
This KLM deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:16 pm -
2 stops23h 29m
Tue 11/109:35 pm -
2 stops28h 49m
Deal found 9/17![KLM logo]()
$791
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 2/211:33 pm -
2 stops21h 47m
Sat 2/276:45 am -
2 stops21h 02m
Deal found 9/16![United Airlines logo]()
$904
This FlightHub deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Wed 11/184:51 pm -
2 stops22h 09m
Tue 4/67:55 am -
2 stops24h 04m
Deal found 9/18![British Airways logo]()
$1,030
This Turkish Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 11/82:45 pm -
2 stops20h 15m
Sat 11/219:30 am -
2 stops24h 01m
Deal found 9/16![Multiple Airlines logo]()
$1,189
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/2911:56 am -
2 stops20h 44m
Thu 11/56:10 am -
2 stops26h 33m
Deal found 9/14![Delta logo]()
$728
This KLM deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 11/912:18 pm -
2 stops22h 27m
Tue 11/249:35 pm -
2 stops29h 44m
Deal found 9/18![KLM logo]()
$915
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/287:00 am -
1 stop17h 35m
Wed 10/76:55 am -
2 stops25h 56m
Deal found 9/16![United Airlines logo]()
$976
This United Airlines deal was found by Cheapflights users on 9/14. 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.
Mon 9/287:00 am -
1 stop17h 35m
Wed 10/146:45 am -
2 stops23h 46m
Deal found 9/14![United Airlines logo]()
$978
This KLM deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 1/1612:00 pm -
2 stops18h 30m
Sun 1/315:55 am -
2 stops20h 17m
Deal found 9/18![KLM logo]()
$991
This Turkish Airlines deal was found by Cheapflights users on 9/15. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3010:39 pm -
2 stops35h 46m
Sun 10/49:35 am -
2 stops45h 24m
Deal found 9/15![Turkish Airlines logo]()
$2,309
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/287:00 am -
1 stop17h 35m
Thu 10/812:45 pm -
2 stops20h 06m
Deal found 9/16![United Airlines logo]()
$979
This Turkish Airlines deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/82:13 pm -
2 stops20h 12m
Sun 10/189:35 am -
2 stops24h 07m
Deal found 9/17![Multiple Airlines logo]()
$1,287
This United Airlines deal was found by Cheapflights users on 9/16. 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 9/297:00 am -
1 stop17h 35m
Thu 10/812:45 pm -
2 stops20h 06m
Deal found 9/16![United Airlines logo]()
$979
This KLM deal was found by Cheapflights users on 9/16. 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 2/712:00 pm -
2 stops18h 35m
Mon 2/156:10 am -
2 stops20h 02m
Deal found 9/16![KLM logo]()
$1,107
This Turkish Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/112:50 pm -
2 stops19h 35m
Sun 10/259:30 am -
2 stops21h 55m
Deal found 9/16![Multiple Airlines logo]()
$1,341
This KLM deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 11/912:18 pm -
2 stops18h 12m
Wed 11/256:10 am -
2 stops21h 09m
Deal found 9/17![KLM logo]()
$1,177
This KLM deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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 10/187:07 am -
1 stop17h 53m
Tue 11/36:10 am -
2 stops20h 13m
Deal found 9/18![KLM logo]()
$1,228
This Turkish Airlines deal was found by Cheapflights users on 9/16. 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.
Thu 10/82:13 pm -
2 stops20h 12m
Mon 10/199:35 am -
2 stops24h 07m
Deal found 9/16![Multiple Airlines logo]()
$11,428
Last-minute flights from Ontario to GreeceDiscover last-minute flight deals from Ontario to Greece. Data last updated September 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Greece. Data last updated September 18, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/210:00 pm -
2 stops53h 20m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$710
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/210:00 pm -
2 stops47h 50m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$828
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/312:17 pm -
2 stops33h 33m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$699
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/312:17 pm -
2 stops39h 03m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$817
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/410:00 pm -
1 stop25h 20m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$695
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/410:00 pm -
1 stop25h 20m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$812
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/611:56 am -
2 stops24h 59m
Tue 10/131:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$714
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/67:07 am -
2 stops29h 48m
Mon 10/121:35 pm -
2 stops37h 37m
Deal found 9/17![Delta logo]()
$831
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/76:00 pm -
2 stops43h 00m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$780
This Delta deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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 10/86:20 am -
2 stops30h 40m
Wed 10/141:35 pm -
2 stops55h 41m
Deal found 9/17![Delta logo]()
$774
This KLM deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2612:16 pm -
2 stops23h 29m
Tue 11/109:35 pm -
2 stops28h 49m
Deal found 9/17![KLM logo]()
$791
This Delta deal was found by Cheapflights users on 9/14. 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.
Thu 10/2911:56 am -
2 stops20h 44m
Thu 11/56:10 am -
2 stops26h 33m
Deal found 9/14![Delta logo]()
$728
One-way flights from Ontario to GreeceSearch for one-way flight options from Ontario to Greece. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
Search for one-way flight options from Ontario to Greece. Find affordable one-way fares based on user searches. Data last updated September 18, 2026.
This FlightHub deal was found by Cheapflights users on 9/15. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/77:00 am -
2 stops32h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![British Airways logo]()
$378
This Orbitz deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/89:25 am -
2 stops39h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Air Canada logo]()
$462
This KLM deal was found by Cheapflights users on 9/16. 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 10/187:07 am -
1 stop17h 53m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![KLM logo]()
$463
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Wed 11/49:25 am -
2 stops41h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$470
This United Airlines deal was found by Cheapflights users on 9/16. 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.
Sun 10/181:24 pm -
2 stops23h 41m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![United Airlines logo]()
$471
This Kiwi.com deal was found by Cheapflights users on 9/18. Clicking the “Pick Dates” 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.
Sun 11/812:01 pm -
3 stops28h 39m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/18![Multiple Airlines logo]()
$475
This Mytrip deal was found by Cheapflights users on 9/16. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:25 am -
3 stops26h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Multiple Airlines logo]()
$486
This KAYAK deal was found by Cheapflights users on 9/16. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/47:00 am -
2 stops31h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![SWISS logo]()
$499
This KAYAK deal was found by Cheapflights users on 9/15. 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 KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
2 stops26h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/15![Lufthansa logo]()
$500
This Mytrip deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:07 pm -
2 stops20h 03m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$507
This Kissandfly.com deal was found by Cheapflights users on 9/16. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/157:00 am -
2 stops20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/16![Lufthansa logo]()
$509
This Kiwi.com deal was found by Cheapflights users on 9/17. Clicking the “Pick Dates” 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.
Thu 9/2412:07 pm -
3 stops36h 48m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/17![Multiple Airlines logo]()
$537
Find flight deals from Ontario to Greece
Keep the following information in mind while searching for Ontario to Greece flight deals. Data was last updated September 18, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $682 (Delta) |
One-way from | $378 (FlightHub) |
Popular in | June |
Cheapest in | February |
Average price | $899 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Greece 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 7,457,451 searches. Data last updated September 18, 2026.
Use the filters below to find and compare flights from Ontario to Greece that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Wed 11/4
9:25 am-12:55 pm
2 stops41h 30m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$470
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Mon 11/2
6:00 am-1:30 am
2 stops33h 30m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 11/1
1:29 pm-1:30 am
2 stops26h 01m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 10/18
1:24 pm-7:00 pm
2 stops19h 36m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Fri 10/16
7:07 am-11:00 am
1 stop17h 53m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$509
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Thu 10/15
7:00 am-11:00 am
1 stop18h 00m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$513
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Fri 10/16
4:03 pm-9:00 pm
2 stops18h 57m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$533
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Thu 9/24
12:07 pm-10:55 am
3 stops36h 48m
Thessaloniki Makedonia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$537
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Thu 10/15
7:00 am-11:00 am
1 stop18h 00m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$543
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Tue 10/13
1:05 pm-12:10 pm
2 stops37h 05m
Thessaloniki Makedonia
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$576
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ONT-ATH
ONT-SKG
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ONT-GR0
ONT-ATH
ONT-SKG
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