$389+ Cheap flights from Ontario (ONT) to Greece
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 2/7. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
Sep 14 — Sep 211
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 August 15, 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 August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops18h 05m
Wed 11/251:00 pm -
2 stops36h 59m
Deal found 8/12![United Airlines logo]()
$810
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops18h 05m
Wed 11/186:45 am -
2 stops23h 30m
Deal found 8/10![United Airlines logo]()
$833
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/106:00 am -
2 stops18h 05m
Tue 11/246:40 am -
2 stops22h 07m
Deal found 8/11![United Airlines logo]()
$835
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/47:00 am -
1 stop17h 35m
Tue 10/136:45 am -
2 stops23h 46m
Deal found 8/10![United Airlines logo]()
$848
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:54 am -
2 stops25h 06m
Tue 9/296:00 am -
2 stops21h 19m
Deal found 8/12![Delta logo]()
$852
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:08 am -
2 stops30h 57m
Thu 9/176:00 am -
2 stops24h 53m
Deal found 8/10![United Airlines logo]()
$856
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/912:17 pm -
2 stops26h 58m
Wed 9/166:00 am -
2 stops24h 24m
Deal found 8/11![Delta logo]()
$857
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am -
1 stop17h 35m
Tue 11/176:45 am -
2 stops21h 16m
Deal found 8/15![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/277:00 am -
1 stop17h 35m
Thu 12/106:45 am -
2 stops23h 35m
Deal found 8/14![United Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:00 am -
2 stops32h 05m
Wed 9/166:00 am -
2 stops40h 12m
Deal found 8/10![United Airlines logo]()
$861
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/96:40 am -
2 stops21h 07m
Deal found 8/14![United Airlines logo]()
$862
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/126:00 pm -
2 stops43h 00m
Mon 10/52:40 pm -
2 stops35h 43m
Deal found 8/11![Delta logo]()
$878
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 August 15, 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 August 15, 2026.
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/284:17 pm -
2 stops24h 13m
Fri 11/131:00 pm -
2 stops39h 47m
Deal found 8/10![United Airlines logo]()
$857
This KLM deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/297:05 am -
1 stop17h 55m
Tue 12/86:10 am -
2 stops20h 20m
Deal found 8/14![KLM logo]()
$980
This British Airways deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:59 pm -
2 stops22h 16m
Sun 11/19:25 pm -
2 stops31h 22m
Deal found 8/13![British Airways logo]()
$1,134
This Turkish Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:39 pm -
2 stops35h 46m
Mon 9/289:15 pm -
2 stops33h 42m
Deal found 8/12![Turkish Airlines logo]()
$1,168
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/277:00 am -
1 stop17h 35m
Thu 12/106:45 am -
2 stops23h 35m
Deal found 8/14![United Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:18 pm -
2 stops32h 52m
Wed 9/306:00 am -
2 stops24h 31m
Deal found 8/12![United Airlines logo]()
$918
This Turkish Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/302:05 pm -
2 stops20h 20m
Fri 9/49:35 am -
2 stops46h 24m
Deal found 8/11![Multiple Airlines logo]()
$2,082
This United Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 12/156:45 am -
2 stops42h 15m
Tue 12/2912:55 pm -
2 stops19h 53m
Deal found 8/11![United Airlines logo]()
$1,020
This Turkish Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2210:39 pm -
2 stops59h 46m
Sun 9/279:15 pm -
2 stops57h 42m
Deal found 8/11![Turkish Airlines logo]()
$1,328
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1310:39 pm -
2 stops35h 46m
Tue 9/299:15 pm -
2 stops57h 42m
Deal found 8/14![Turkish Airlines logo]()
$1,411
This KLM deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:05 am -
1 stop16h 55m
Wed 9/309:45 am -
1 stop20h 39m
Deal found 8/14![KLM logo]()
$1,666
This British Airways deal was found by Cheapflights users on 8/14. 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 British Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:05 am -
1 stop18h 40m
Mon 9/72:00 pm -
1 stop18h 59m
Deal found 8/14![British Airways logo]()
$1,755
This KLM deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/127:05 am -
1 stop17h 55m
Thu 9/249:45 am -
1 stop18h 22m
Deal found 8/13![KLM logo]()
$1,668
This Turkish Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1210:39 pm -
2 stops35h 51m
Thu 9/2410:00 pm -
2 stops32h 57m
Deal found 8/12![Turkish Airlines logo]()
$1,543
This KLM deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/237:05 am -
1 stop17h 55m
Fri 10/29:45 am -
1 stop18h 22m
Deal found 8/14![KLM logo]()
$1,742
This Turkish Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1510:39 pm -
2 stops24h 16m
Wed 9/3010:00 pm -
2 stops32h 57m
Deal found 8/12![Turkish Airlines logo]()
$1,762
This Turkish Airlines deal was found by Cheapflights users on 8/14. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:59 pm -
2 stops34h 26m
Sun 9/69:35 am -
2 stops22h 30m
Deal found 8/14![Multiple Airlines logo]()
$2,652
This Air Serbia deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Air Serbia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/811:59 pm -
2 stops29h 26m
Tue 9/224:10 pm -
2 stops38h 47m
Deal found 8/13![Air Serbia logo]()
$6,433
This Turkish Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/3011:59 pm -
2 stops34h 26m
Fri 9/49:35 am -
2 stops46h 24m
Deal found 8/11![Turkish Airlines logo]()
$2,292
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/273:14 pm -
3 stops20h 56m
Sun 10/46:15 pm -
3 stops32h 50m
Deal found 8/13![Multiple Airlines logo]()
$4,375
Last-minute flights from Ontario to GreeceDiscover last-minute flight deals from Ontario to Greece. Data last updated August 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Greece. Data last updated August 15, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/75:00 am -
2 stops32h 05m
Wed 9/166:00 am -
2 stops40h 12m
Deal found 8/10![United Airlines logo]()
$861
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/71:18 pm -
2 stops23h 47m
Fri 9/186:45 am -
2 stops26h 14m
Deal found 8/10![United Airlines logo]()
$920
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:08 am -
2 stops30h 57m
Thu 9/176:00 am -
2 stops24h 53m
Deal found 8/10![United Airlines logo]()
$856
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/912:17 pm -
2 stops26h 58m
Wed 9/166:00 am -
2 stops24h 24m
Deal found 8/11![Delta logo]()
$857
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/116:00 pm -
2 stops43h 00m
Mon 10/52:40 pm -
2 stops35h 43m
Deal found 8/11![Delta logo]()
$938
This Delta deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/126:00 pm -
2 stops43h 00m
Mon 10/52:40 pm -
2 stops35h 43m
Deal found 8/11![Delta logo]()
$878
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:00 am -
2 stops31h 00m
Fri 10/26:00 am -
2 stops26h 24m
Deal found 8/12![Delta logo]()
$912
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/191:18 pm -
2 stops32h 52m
Wed 9/306:00 am -
2 stops24h 31m
Deal found 8/12![United Airlines logo]()
$918
This Delta deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2311:54 am -
2 stops25h 06m
Tue 9/296:00 am -
2 stops21h 19m
Deal found 8/12![Delta logo]()
$852
This United Airlines deal was found by Cheapflights users on 8/14. 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.
Sun 9/277:00 am -
1 stop17h 35m
Thu 12/106:45 am -
2 stops23h 35m
Deal found 8/14![United Airlines logo]()
$860
This United Airlines deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am -
1 stop17h 35m
Tue 11/176:45 am -
2 stops21h 16m
Deal found 8/15![United Airlines logo]()
$859
This United Airlines deal was found by Cheapflights users on 8/14. 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 12/96:40 am -
2 stops21h 07m
Deal found 8/14![United Airlines logo]()
$862
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 August 15, 2026.
Search for one-way flight options from Ontario to Greece. Find affordable one-way fares based on user searches. Data last updated August 15, 2026.
This Mytrip deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 2/712:57 pm -
2 stops26h 28m
Deal found 8/12![British Airways logo]()
$389
This Delta deal was found by Cheapflights users on 8/14. 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.
Sun 12/277:00 am -
2 stops23h 35m
Deal found 8/14![Delta logo]()
$392
This United Airlines deal was found by Cheapflights users on 8/14. 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 1/41:38 pm -
2 stops59h 22m
Deal found 8/14![United Airlines logo]()
$403
This SmartFares deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/125:00 am -
2 stops19h 10m
Deal found 8/11![Air Canada logo]()
$440
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/196:00 am -
2 stops26h 25m
Deal found 8/10![United Airlines logo]()
$441
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 12/251:18 pm -
2 stops35h 42m
Deal found 8/10![United Airlines logo]()
$442
This FlightHub deal was found by Cheapflights users on 8/14. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/249:30 am -
2 stops30h 00m
Deal found 8/14![British Airways logo]()
$445
This Kissandfly.com deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/135:00 am -
2 stops19h 10m
Deal found 8/13![Air Canada logo]()
$457
This United Airlines deal was found by Cheapflights users on 8/14. 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 9/147:00 am -
1 stop17h 35m
Deal found 8/14![United Airlines logo]()
$463
This Billigflug deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Billigflug is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:15 pm -
1 stop25h 45m
Deal found 8/13![KLM logo]()
$466
This United Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:56 pm -
2 stops34h 39m
Deal found 8/13![United Airlines logo]()
$469
This United Airlines deal was found by Cheapflights users on 8/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am -
2 stops30h 05m
Deal found 8/12![United Airlines logo]()
$471
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 August 15, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $810 (United Airlines) |
One-way from | $383 (United Airlines) |
Popular in | June |
Cheapest in | February |
Average price | $843 |
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 2,558,603 searches. Data last updated August 15, 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 10/28
4:17 pm-1:30 am
2 stops24h 13m
Athens Eleftherios V.
Fri 11/13
1:00 pm-6:47 pm
2 stops39h 47m
$857
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 9/27
7:00 am-10:35 am
1 stop17h 35m
Athens Eleftherios V.
Thu 12/10
6:45 am-8:20 pm
2 stops23h 35m
$860
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 9/19
1:18 pm-8:10 am
2 stops32h 52m
Athens Eleftherios V.
Wed 9/30
6:00 am-8:31 pm
2 stops24h 31m
$918
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Tue 9/29
7:05 am-11:00 am
1 stop17h 55m
Athens Eleftherios V.
Tue 12/8
6:10 am-4:30 pm
2 stops20h 20m
$980
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Tue 12/15
6:45 am-11:00 am
2 stops42h 15m
Athens Eleftherios V.
Tue 12/29
12:55 pm-10:48 pm
2 stops19h 53m
$1,020
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Mon 8/31
12:59 pm-9:15 pm
2 stops22h 16m
Thessaloniki Makedonia
Sun 11/1
9:25 pm-6:47 pm
2 stops31h 22m
$1,134
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Sun 9/13
10:39 pm-8:25 pm
2 stops35h 46m
Thessaloniki Makedonia
Mon 9/28
9:15 pm-8:57 pm
2 stops33h 42m
$1,168
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Tue 9/22
10:39 pm-8:25 pm
2 stops59h 46m
Thessaloniki Makedonia
Sun 9/27
9:15 pm-8:57 pm
2 stops57h 42m
$1,328
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Sun 9/13
10:39 pm-8:25 pm
2 stops35h 46m
Thessaloniki Makedonia
Tue 9/29
9:15 pm-8:57 pm
2 stops57h 42m
$1,411
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 9/12
10:39 pm-8:30 pm
2 stops35h 51m
Athens Eleftherios V.
Thu 9/24
10:00 pm-8:57 pm
2 stops32h 57m
$1,543
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ONT-ATH
ONT-SKG
Estimated round-trip price
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ONT-GR0
ONT-ATH
ONT-SKG
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