$389+ 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 1/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — ATH
Oct 6 — Oct 131
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
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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 6, 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 6, 2026.
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/117:00 am -
1 stop17h 35m
Wed 10/2112:35 pm -
1 stop20h 14m
Deal found 9/3![United Airlines logo]()
$844
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/137:00 am -
1 stop17h 35m
Wed 10/2112:35 pm -
1 stop20h 14m
Deal found 9/4![United Airlines logo]()
$857
This Delta deal was found by Cheapflights users on 9/4. 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.
Mon 10/1911:08 pm -
1 stop25h 52m
Tue 10/271:35 pm -
2 stops30h 31m
Deal found 9/4![Delta logo]()
$862
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/147:00 am -
1 stop17h 30m
Wed 11/47:05 am -
2 stops23h 10m
Deal found 9/6![United Airlines logo]()
$875
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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 9/1![United Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Mon 12/711:26 am -
2 stops23h 54m
Mon 12/2112:55 pm -
2 stops19h 58m
Deal found 9/4![United Airlines logo]()
$900
This KLM deal was found by Cheapflights users on 9/4. 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 KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/1712:18 pm -
2 stops18h 12m
Tue 1/266:10 am -
2 stops20h 02m
Deal found 9/4![KLM logo]()
$915
This KLM deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:07 am -
1 stop17h 53m
Fri 11/66:10 am -
2 stops20h 13m
Deal found 9/2![KLM logo]()
$925
This Trip.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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.
Sun 10/412:19 pm -
1 stop35h 01m
Mon 10/199:45 am -
1 stop18h 37m
Deal found 9/1![Multiple Airlines logo]()
$928
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/297:00 am -
1 stop17h 35m
Fri 11/136:45 am -
2 stops22h 02m
Deal found 9/4![United Airlines logo]()
$957
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/117:00 am -
1 stop17h 35m
Sun 10/1812:35 pm -
2 stops34h 11m
Deal found 9/3![United Airlines logo]()
$964
This Ovago deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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.
Sat 10/177:00 am -
2 stops19h 30m
Sat 10/249:05 pm -
2 stops49h 24m
Deal found 9/2![SWISS logo]()
$1,030
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 6, 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 6, 2026.
This KLM deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 1/2712:00 pm -
2 stops18h 30m
Wed 2/176:10 am -
2 stops20h 02m
Deal found 9/2![KLM logo]()
$844
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Wed 10/77:00 am -
1 stop17h 30m
Wed 10/2112:35 pm -
1 stop20h 14m
Deal found 9/5![United Airlines logo]()
$844
This Ovago deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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.
Sat 10/177:00 am -
2 stops19h 30m
Sat 10/249:05 pm -
2 stops49h 24m
Deal found 9/2![SWISS logo]()
$1,030
This Delta deal was found by Cheapflights users on 9/5. 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.
Sat 10/177:07 am -
1 stop17h 53m
Sat 10/246:35 am -
2 stops19h 48m
Deal found 9/5![Delta logo]()
$1,172
This Turkish Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 10/510:42 pm -
2 stops35h 43m
Mon 10/199:35 am -
2 stops24h 07m
Deal found 9/2![Multiple Airlines logo]()
$1,172
This British Airways deal was found by Cheapflights users on 9/6. 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.
Wed 10/711:59 pm -
2 stops28h 26m
Wed 10/217:00 pm -
2 stops30h 16m
Deal found 9/6![British Airways logo]()
$1,237
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 pm -
2 stops48h 03m
Fri 10/169:35 am -
2 stops46h 10m
Deal found 9/3![Turkish Airlines logo]()
$1,441
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Sun 10/410:39 pm -
2 stops31h 01m
Mon 10/194:25 am -
2 stops27h 49m
Deal found 9/3![Air Serbia logo]()
$1,577
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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 3/26:53 pm -
2 stops40h 27m
Fri 3/512:25 pm -
2 stops34h 08m
Deal found 9/1![United Airlines logo]()
$853
This United Airlines deal was found by Cheapflights users on 9/5. 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 1/2511:20 am -
2 stops19h 10m
Tue 2/27:05 am -
2 stops23h 21m
Deal found 9/5![United Airlines logo]()
$910
This KLM deal was found by Cheapflights users on 9/5. 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.
Tue 2/1612:00 pm -
2 stops18h 30m
Tue 2/236:10 am -
2 stops20h 02m
Deal found 9/5![KLM logo]()
$1,014
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/610:42 pm -
2 stops48h 03m
Tue 10/139:15 pm -
2 stops34h 57m
Deal found 9/3![Multiple Airlines logo]()
$1,349
This Turkish Airlines deal was found by Cheapflights users on 9/3. 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 Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/310:39 pm -
2 stops35h 46m
Fri 10/169:35 am -
2 stops46h 10m
Deal found 9/3![Turkish Airlines logo]()
$1,441
This British Airways deal was found by Cheapflights users on 9/3. 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.
Wed 10/71:05 pm -
2 stops39h 20m
Fri 10/163:15 pm -
2 stops34h 01m
Deal found 9/3![British Airways logo]()
$1,515
This KLM deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 10/47:05 am -
1 stop17h 55m
Tue 10/209:45 am -
1 stop20h 40m
Deal found 9/2![KLM logo]()
$1,459
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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 12/2111:52 pm -
2 stops49h 08m
Wed 12/302:30 pm -
2 stops40h 30m
Deal found 9/1![United Airlines logo]()
$1,416
This American Airlines deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 10/1712:43 pm -
2 stops37h 47m
Sat 10/2411:30 am -
3 stops31h 40m
Deal found 9/2![Multiple Airlines logo]()
$1,719
This KLM deal was found by Cheapflights users on 9/5. 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.
Wed 9/307:05 am -
1 stop17h 55m
Fri 10/212:10 pm -
1 stop20h 14m
Deal found 9/5![KLM logo]()
$1,592
This Air Serbia deal was found by Cheapflights users on 9/3. 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.
Sun 10/410:39 pm -
2 stops31h 01m
Sun 10/184:10 pm -
2 stops40h 04m
Deal found 9/3![Air Serbia logo]()
$1,941
This KLM deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:07 am -
2 stops19h 48m
Sat 10/2411:40 pm -
2 stops26h 43m
Deal found 9/1![KLM logo]()
$5,543
Last-minute flights from Ontario to GreeceDiscover last-minute flight deals from Ontario to Greece. Data last updated September 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Greece. Data last updated September 6, 2026 and is based on user searches.
This United Airlines deal was found by Cheapflights users on 9/4. 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 9/297:00 am -
1 stop17h 35m
Fri 11/136:45 am -
2 stops22h 02m
Deal found 9/4![United Airlines logo]()
$957
This Trip.com deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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.
Sun 10/412:19 pm -
1 stop35h 01m
Mon 10/199:45 am -
1 stop18h 37m
Deal found 9/1![Multiple Airlines logo]()
$928
This KLM deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 stop18h 37m
Deal found 9/2![KLM logo]()
$1,022
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/117:00 am -
1 stop17h 35m
Wed 10/2112:35 pm -
1 stop20h 14m
Deal found 9/3![United Airlines logo]()
$844
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sun 10/117:00 am -
1 stop17h 35m
Sun 10/1812:35 pm -
2 stops34h 11m
Deal found 9/3![United Airlines logo]()
$964
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/137:00 am -
1 stop17h 35m
Wed 10/2112:35 pm -
1 stop20h 14m
Deal found 9/4![United Airlines logo]()
$857
This United Airlines deal was found by Cheapflights users on 9/6. 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.
Wed 10/147:00 am -
1 stop17h 30m
Wed 11/47:05 am -
2 stops23h 10m
Deal found 9/6![United Airlines logo]()
$875
This Ovago deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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.
Sat 10/177:00 am -
2 stops19h 30m
Sat 10/249:05 pm -
2 stops49h 24m
Deal found 9/2![SWISS logo]()
$1,030
This Delta deal was found by Cheapflights users on 9/4. 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.
Mon 10/1911:08 pm -
1 stop25h 52m
Tue 10/271:35 pm -
2 stops30h 31m
Deal found 9/4![Delta logo]()
$862
This KLM deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/237:07 am -
1 stop17h 53m
Fri 11/66:10 am -
2 stops20h 13m
Deal found 9/2![KLM logo]()
$925
This United Airlines deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” 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 10/231:24 pm -
2 stops23h 41m
Sun 11/156:40 am -
2 stops26h 08m
Deal found 9/1![United Airlines logo]()
$982
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Sat 10/246:00 am -
2 stops19h 05m
Sat 11/77:05 am -
2 stops23h 10m
Deal found 9/3![United Airlines logo]()
$979
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 6, 2026.
Search for one-way flight options from Ontario to Greece. Find affordable one-way fares based on user searches. Data last updated September 6, 2026.
This KLM deal was found by Cheapflights users on 9/5. 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.
Wed 1/1312:00 pm -
2 stops18h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![KLM logo]()
$389
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/135:00 am -
2 stops19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$463
This Tripair deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Tripair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/241:22 pm -
2 stops35h 38m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/1![Air Canada logo]()
$467
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/41:24 pm -
2 stops19h 36m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$471
This United Airlines deal was found by Cheapflights users on 9/5. 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 10/55:00 am -
2 stops30h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![United Airlines logo]()
$484
This United Airlines deal was found by Cheapflights users on 9/4. 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.
Thu 10/157:00 am -
1 stop18h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$513
This KLM deal was found by Cheapflights users on 9/5. 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.
Wed 11/1112:18 pm -
2 stops18h 12m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![KLM logo]()
$514
This Delta deal was found by Cheapflights users on 9/3. 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.
Fri 10/210:00 pm -
1 stop25h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$519
This United Airlines deal was found by Cheapflights users on 9/4. 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 10/107:00 am -
1 stop17h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![United Airlines logo]()
$523
This Delta deal was found by Cheapflights users on 9/3. 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.
Sat 10/31:04 pm -
2 stops17h 46m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$532
This Air Canada deal was found by Cheapflights users on 9/5. 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 Air Canada is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/46:00 am -
2 stops19h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Multiple Airlines logo]()
$534
This FlightHub deal was found by Cheapflights users on 9/2. Clicking the “Pick Dates” 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 10/1411:59 pm -
2 stops28h 26m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![British Airways logo]()
$668
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $838 (Iberia) |
One-way from | $389 (KLM) |
Popular in | June |
Cheapest in | February |
Average price | $882 |
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 6, 2026.
Use the filters below to find and compare flights from Ontario to Greece that are best for you.
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Route
Depart
Return
Cheapest round-trip
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 11/14
4:17 pm-10:05 am
2 stops31h 48m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$463
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 10/11
7:07 am-11:00 am
1 stop17h 53m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$463
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Tue 10/13
5:00 am-10:35 am
2 stops19h 35m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$463
Quickest round-trip
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Wed 10/14
7:00 am-10:30 am
1 stop17h 30m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$463
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sun 10/11
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
Tue 10/6
11:10 am-11:05 pm
2 stops25h 55m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$471
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Thu 11/12
11:10 pm-9:35 am
2 stops24h 25m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$513
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Mon 11/16
12:18 pm-4:30 pm
2 stops18h 12m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$562
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 10/3
7:05 am-11:00 am
1 stop17h 55m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$566
OntarioAthens
ONT Ontario - ATH Athens Eleftherios V.
ONTATH
Ontario
Sat 10/3
5:00 am-10:35 am
2 stops19h 35m
Athens Eleftherios V.
Wed 12/31
12:00 am-2:00 pm
Nonstop0h 00m
$567
Showing 1-10 of 32 resultsSorted by cheapest first
Best time to book a flight from Ontario to Greece
Have a flexible travel schedule? Discover the best time to fly to Greece from Ontario with our price prediction graph.
ONT-ATH
ONT-SKG
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 Greece
ONT-GR0
ONT-ATH
ONT-SKG
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