$370+ 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 1/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
Sep 30 — Oct 71
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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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 31, 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 31, 2026.
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/117:00 am -
1 stop17h 35m
Wed 10/211:10 pm -
2 stops43h 41m
Deal found 8/30![United Airlines logo]()
$824
This Delta deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/117:07 am -
1 stop17h 53m
Wed 10/219:45 am -
1 stop20h 40m
Deal found 8/30![Delta logo]()
$844
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/137:00 am -
1 stop17h 35m
Tue 10/2012:35 pm -
1 stop20h 14m
Deal found 8/30![United Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops18h 05m
Wed 11/187:05 am -
2 stops23h 10m
Deal found 8/26![United Airlines logo]()
$880
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 12/35:45 am -
2 stops19h 15m
Thu 12/1712:55 pm -
2 stops19h 58m
Deal found 8/31![United Airlines logo]()
$884
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/246:27 pm -
2 stops54h 33m
Thu 1/71:00 pm -
2 stops41h 20m
Deal found 8/28![United Airlines logo]()
$893
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/291:35 pm -
2 stops21h 45m
Sun 12/136:45 am -
2 stops23h 44m
Deal found 8/27![United Airlines logo]()
$899
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/57:05 am -
1 stop17h 55m
Mon 10/199:45 am -
1 stop22h 09m
Deal found 8/30![KLM logo]()
$904
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 10/57:00 am -
1 stop17h 35m
Mon 10/196:00 am -
2 stops21h 36m
Deal found 8/30![United Airlines logo]()
$909
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/207:00 am -
1 stop17h 35m
Mon 1/187:05 am -
2 stops23h 21m
Deal found 8/29![United Airlines logo]()
$925
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
2 stops18h 05m
Mon 11/236:45 am -
2 stops21h 11m
Deal found 8/26![United Airlines logo]()
$928
This Turkish Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Mon 9/2810:39 pm -
2 stops48h 06m
Mon 10/129:35 am -
2 stops24h 07m
Deal found 8/31![Multiple Airlines logo]()
$1,305
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 31, 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 31, 2026.
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 2/267:00 am -
2 stops19h 40m
Mon 3/81:35 pm -
2 stops37h 42m
Deal found 8/31![Delta logo]()
$895
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 2/136:53 pm -
2 stops44h 37m
Sun 2/216:45 am -
2 stops26h 21m
Deal found 8/31![United Airlines logo]()
$897
This Turkish Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Mon 9/2810:39 pm -
2 stops48h 06m
Mon 10/129:35 am -
2 stops24h 07m
Deal found 8/31![Multiple Airlines logo]()
$1,305
This FlightHub deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:39 pm -
2 stops24h 06m
Fri 10/29:15 pm -
2 stops33h 42m
Deal found 8/27![Turkish Airlines logo]()
$1,513
This KLM deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/217:07 am -
1 stop17h 53m
Wed 11/46:10 am -
2 stops20h 13m
Deal found 8/28![KLM logo]()
$1,533
This Booking.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/114:29 pm -
2 stops32h 56m
Sat 10/243:50 pm -
2 stops36h 54m
Deal found 8/29![British Airways logo]()
$1,625
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/291:35 pm -
2 stops21h 45m
Sun 12/136:45 am -
2 stops23h 44m
Deal found 8/30![United Airlines logo]()
$899
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:00 am -
2 stops18h 05m
Mon 11/236:45 am -
2 stops21h 11m
Deal found 8/26![United Airlines logo]()
$928
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/229:25 am -
2 stops19h 30m
Sat 11/76:45 am -
2 stops39h 44m
Deal found 8/27![United Airlines logo]()
$987
This Turkish Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/410:39 pm -
2 stops35h 46m
Mon 10/199:35 am -
2 stops24h 07m
Deal found 8/27![Multiple Airlines logo]()
$1,307
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:05 am -
1 stop16h 15m
Mon 10/129:45 am -
1 stop22h 09m
Deal found 8/29![Delta logo]()
$1,463
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/121:18 pm -
2 stops32h 52m
Mon 9/2110:25 am -
2 stops36h 25m
Deal found 8/30![United Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 2/126:53 pm -
2 stops20h 37m
Sun 2/216:45 am -
3 stops23h 35m
Deal found 8/31![United Airlines logo]()
$1,125
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/177:00 am -
1 stop17h 35m
Sat 10/316:40 am -
2 stops23h 11m
Deal found 8/27![United Airlines logo]()
$1,175
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/115:00 am -
3 stops43h 10m
Mon 9/216:45 am -
2 stops26h 14m
Deal found 8/27![United Airlines logo]()
$1,404
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/2010:29 pm -
2 stops36h 16m
Thu 12/311:40 pm -
2 stops30h 20m
Deal found 8/30![KLM logo]()
$2,655
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/2111:10 am -
2 stops23h 35m
Thu 12/311:40 pm -
2 stops30h 20m
Deal found 8/30![KLM logo]()
$3,505
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/1911:10 am -
2 stops23h 55m
Thu 12/311:40 pm -
2 stops30h 20m
Deal found 8/30![KLM logo]()
$3,788
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 12/2010:29 pm -
2 stops36h 16m
Fri 1/11:40 pm -
2 stops30h 20m
Deal found 8/30![KLM logo]()
$4,155
This Expedia deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/238:25 am -
2 stops19h 10m
Wed 9/307:00 pm -
2 stops33h 13m
Deal found 8/30![British Airways logo]()
$8,634
Last-minute flights from Ontario to GreeceDiscover last-minute flight deals from Ontario to Greece. Data last updated August 31, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Greece. Data last updated August 31, 2026 and is based on user searches.
This Ovago deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Ovago is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:27 pm -
2 stops25h 43m
Thu 9/104:20 pm -
2 stops37h 47m
Deal found 8/28![British Airways logo]()
$1,190
This Iberia deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Iberia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:05 am -
1 stop18h 40m
Thu 9/1010:00 pm -
2 stops32h 07m
Deal found 8/28![Iberia logo]()
$1,210
This KLM deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/317:05 am -
1 stop17h 55m
Thu 9/109:45 am -
1 stop20h 20m
Deal found 8/28![KLM logo]()
$1,215
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:05 am -
1 stop17h 55m
Wed 9/96:00 am -
2 stops20h 35m
Deal found 8/28![Delta logo]()
$979
This British Airways deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/17:05 am -
1 stop18h 40m
Tue 9/82:00 pm -
1 stop18h 59m
Deal found 8/30![British Airways logo]()
$1,152
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/121:18 pm -
2 stops32h 52m
Mon 9/2110:25 am -
2 stops36h 25m
Deal found 8/30![United Airlines logo]()
$1,107
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:56 pm -
2 stops32h 14m
Sun 9/2012:45 pm -
2 stops58h 05m
Deal found 8/27![United Airlines logo]()
$1,208
This KAYAK deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/121:18 pm -
2 stops32h 52m
Mon 9/216:55 am -
2 stops23h 06m
Deal found 8/27![Multiple Airlines logo]()
$1,224
This Iberia deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Tue 9/2210:25 am -
2 stops18h 55m
Wed 12/93:50 pm -
2 stops27h 50m
Deal found 8/30![Iberia logo]()
$1,218
This FlightHub deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2510:39 pm -
2 stops24h 06m
Fri 10/29:15 pm -
2 stops33h 42m
Deal found 8/27![Turkish Airlines logo]()
$1,513
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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
Tue 10/66:45 am -
2 stops23h 46m
Deal found 8/30![United Airlines logo]()
$1,227
This Turkish Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Mon 9/2810:39 pm -
2 stops48h 06m
Mon 10/129:35 am -
2 stops24h 07m
Deal found 8/31![Multiple Airlines logo]()
$1,305
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 31, 2026.
Search for one-way flight options from Ontario to Greece. Find affordable one-way fares based on user searches. Data last updated August 31, 2026.
This Expedia deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/2012:43 pm -
2 stops20h 17m
Deal found 8/27![British Airways logo]()
$370
This Kiwi.com deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/25:44 pm -
3 stops45h 31m
Deal found 8/27![Multiple Airlines logo]()
$394
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/56:53 pm -
2 stops20h 37m
Deal found 8/27![United Airlines logo]()
$441
This Kiwi.com deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:25 am -
3 stops31h 15m
Deal found 8/26![Multiple Airlines logo]()
$444
This United Airlines deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/206:53 pm -
3 stops35h 37m
Deal found 8/27![United Airlines logo]()
$454
This KLM deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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 9/287:05 am -
1 stop17h 55m
Deal found 8/30![KLM logo]()
$457
This Kissandfly.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1012:16 pm -
2 stops33h 19m
Deal found 8/28![KLM logo]()
$462
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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
Deal found 8/30![United Airlines logo]()
$463
This American Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure American Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1010:10 pm -
1 stop27h 20m
Deal found 8/28![American Airlines logo]()
$464
This United Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” 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 9/2811:10 am -
2 stops17h 45m
Deal found 8/29![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 8/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/317:00 am -
2 stops43h 00m
Deal found 8/26![United Airlines logo]()
$480
This Mytrip deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” 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.
Tue 9/291:04 pm -
2 stops27h 06m
Deal found 8/30![British Airways logo]()
$483
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 31, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $824 (United Airlines) |
One-way from | $370 (Expedia) |
Popular in | June |
Cheapest in | February |
Average price | $894 |
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 August 31, 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
Fri 2/26
7:00 am-12:40 pm
2 stops19h 40m
Athens Eleftherios V.
Mon 3/8
1:35 pm-5:17 pm
2 stops37h 42m
$895
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 2/13
6:53 pm-1:30 am
2 stops44h 37m
Athens Eleftherios V.
Sun 2/21
6:45 am-11:06 pm
2 stops26h 21m
$897
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 11/29
1:35 pm-9:20 pm
2 stops21h 45m
Athens Eleftherios V.
Sun 12/13
6:45 am-8:29 pm
2 stops23h 44m
$899
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Tue 11/10
6:00 am-10:05 am
2 stops18h 05m
Athens Eleftherios V.
Mon 11/23
6:45 am-5:56 pm
2 stops21h 11m
$928
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Thu 10/22
9:25 am-2:55 pm
2 stops19h 30m
Athens Eleftherios V.
Sat 11/7
6:45 am-12:29 pm
2 stops39h 44m
$987
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 9/12
1:18 pm-8:10 am
2 stops32h 52m
Athens Eleftherios V.
Mon 9/21
10:25 am-12:50 pm
2 stops36h 25m
$1,107
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Fri 2/12
6:53 pm-1:30 am
2 stops20h 37m
Athens Eleftherios V.
Sun 2/21
6:45 am-8:20 pm
3 stops23h 35m
$1,125
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 10/17
7:00 am-10:35 am
1 stop17h 35m
Athens Eleftherios V.
Sat 10/31
6:40 am-8:51 pm
2 stops23h 11m
$1,175
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Mon 9/28
10:39 pm-8:45 am
2 stops48h 06m
Thessaloniki Makedonia
Mon 10/12
9:35 am-11:42 pm
2 stops24h 07m
$1,305
OntarioThessaloniki
ONT Ontario - SKG Thessaloniki Makedonia
ONTSKG
Ontario
Sun 10/4
10:39 pm-8:25 pm
2 stops35h 46m
Thessaloniki Makedonia
Mon 10/19
9:35 am-11:42 pm
2 stops24h 07m
$1,307
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ONT-ATH
ONT-SKG
Estimated round-trip price
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ONT-ATH
ONT-SKG
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