$397+ Cheap flights from Ontario (ONT) to Thailand
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 12/31. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Aug 8 — Aug 151
Round-trip
1 adult, Economy
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Cheapest flights from Ontario to ThailandExplore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
Explore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 9, 2026.
This lol.travel deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:20 am
ONT
- BKK
2 stops41h 15m
Korean Air
Sun 9/69:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 7/9![Korean Air logo]()
$751
This lol.travel deal was found by Cheapflights users on 7/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Mon 8/242:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 7/5![Korean Air logo]()
$769
This lol.travel deal was found by Cheapflights users on 7/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Sun 8/232:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 7/5![Korean Air logo]()
$804
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:20 am
ONT
- BKK
2 stops25h 25m
Delta
Tue 10/139:50 am
BKK
- ONT
2 stops21h 22m
Delta
Deal found 7/8![Delta logo]()
$821
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 10/266:00 am
ONT
- CNX
2 stops26h 55m
Delta
Tue 11/1712:15 am
CNX
- ONT
2 stops32h 02m
Delta
Deal found 7/9![Delta logo]()
$821
This Korean Air deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/156:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sun 11/112:55 am
BKK
- ONT
2 stops31h 17m
Korean Air
Deal found 7/8![Korean Air logo]()
$826
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:52 pm
ONT
- BKK
2 stops60h 38m
Delta
Mon 11/99:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 7/7![Delta logo]()
$827
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/111:56 am
ONT
- BKK
2 stops66h 34m
Delta
Sun 11/811:15 pm
BKK
- ONT
2 stops52h 15m
Delta
Deal found 7/7![Delta logo]()
$833
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 10/256:00 am
ONT
- CNX
2 stops26h 55m
Delta
Wed 11/1812:15 am
CNX
- ONT
2 stops32h 02m
Delta
Deal found 7/9![Delta logo]()
$865
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 10/266:00 am
ONT
- CNX
2 stops26h 55m
Delta
Thu 11/1912:15 am
CNX
- ONT
2 stops37h 28m
Delta
Deal found 7/9![Delta logo]()
$894
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:20 am
ONT
- CNX
2 stops26h 35m
Korean Air
Wed 10/2812:15 am
CNX
- ONT
2 stops30h 57m
Korean Air
Deal found 7/7![Korean Air logo]()
$910
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:20 am
ONT
- HKT
2 stops25h 50m
Delta
Tue 1/2611:40 pm
HKT
- ONT
2 stops38h 03m
Delta
Deal found 7/6![Delta logo]()
$921
Best flights from Ontario to ThailandDiscover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
Discover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 9, 2026.
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 10/266:00 am
ONT
- CNX
2 stops26h 55m
Delta
Wed 11/1812:15 am
CNX
- ONT
2 stops30h 57m
Delta
Deal found 7/9![Delta logo]()
$821
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Thu 10/299:40 am
BKK
- ONT
2 stops21h 32m
Korean Air
Deal found 7/7![Korean Air logo]()
$876
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 12/26:00 am
ONT
- BKK
2 stops27h 20m
United Airlines
Mon 12/219:10 am
BKK
- ONT
2 stops23h 37m
United Airlines
Deal found 7/9![United Airlines logo]()
$948
This oojo deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 8/3111:20 am
CNX
- ONT
1 stop21h 20m
China Airlines
Deal found 7/9![China Airlines logo]()
$1,069
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Tue 9/227:25 am
DMK
- ONT
1 stop24h 35m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,158
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:20 am
ONT
- CNX
2 stops26h 35m
Korean Air
Wed 10/2812:15 am
CNX
- ONT
2 stops30h 57m
Korean Air
Deal found 7/7![Korean Air logo]()
$910
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
ONT
- HKT
2 stops26h 10m
Delta
Mon 1/2511:40 pm
HKT
- ONT
2 stops31h 32m
Delta
Deal found 7/6![Delta logo]()
$921
This United Airlines deal was found by Cheapflights users on 7/6. 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.
Tue 7/284:20 pm
ONT
- BKK
2 stops27h 15m
United Airlines
Thu 8/207:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 7/6![United Airlines logo]()
$955
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/76:00 am
ONT
- HKT
2 stops26h 10m
Delta
Tue 1/2611:40 pm
HKT
- ONT
2 stops38h 03m
Delta
Deal found 7/6![Delta logo]()
$921
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/36:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Mon 9/1411:25 pm
HKT
- ONT
2 stops37h 15m
Korean Air
Deal found 7/7![Korean Air logo]()
$926
This United Airlines deal was found by Cheapflights users on 7/4. 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.
Wed 11/256:00 am
ONT
- BKK
2 stops27h 20m
United Airlines
Mon 12/74:55 pm
BKK
- ONT
2 stops21h 11m
United Airlines
Deal found 7/4![United Airlines logo]()
$974
This China Airlines deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Sun 11/12:05 pm
BKK
- ONT
1 stop18h 00m
China Airlines
Deal found 7/8![China Airlines logo]()
$1,072
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Mon 9/1411:25 pm
HKT
- ONT
2 stops37h 15m
Korean Air
Deal found 7/7![Korean Air logo]()
$926
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 10/276:00 am
ONT
- CNX
2 stops26h 55m
Delta
Fri 11/2012:15 am
CNX
- ONT
2 stops32h 02m
Delta
Deal found 7/9![Delta logo]()
$944
This Trip.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:50 pm
ONT
- KBV
2 stops30h 20m
Multiple Airlines
Wed 12/99:00 am
KBV
- ONT
2 stops22h 50m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$1,159
This China Airlines deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 8/251:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/7![China Airlines logo]()
$1,073
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/135:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Fri 8/217:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 7/9![United Airlines logo]()
$999
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Sun 9/1311:25 pm
HKT
- ONT
2 stops37h 15m
Korean Air
Deal found 7/7![Korean Air logo]()
$926
This Kiwi.com deal was found by Cheapflights users on 7/5. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Tue 9/86:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/5![Multiple Airlines logo]()
$1,160
This Delta deal was found by Cheapflights users on 7/5. 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 8/226:00 am
ONT
- HKT
2 stops26h 10m
Delta
Tue 9/2911:25 pm
HKT
- ONT
2 stops37h 15m
Delta
Deal found 7/5![Delta logo]()
$965
This China Airlines deal was found by Cheapflights users on 7/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 9/2111:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 7/5![China Airlines logo]()
$1,091
This United Airlines deal was found by Cheapflights users on 7/4. 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.
Sun 9/65:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Thu 9/177:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 7/4![United Airlines logo]()
$1,000
This Delta deal was found by Cheapflights users on 7/5. 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 8/226:20 am
ONT
- HKT
2 stops25h 50m
Delta
Wed 9/1611:25 pm
HKT
- ONT
2 stops38h 22m
Delta
Deal found 7/5![Delta logo]()
$965
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/76:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Sat 9/1211:25 pm
HKT
- ONT
2 stops37h 15m
Korean Air
Deal found 7/7![Korean Air logo]()
$970
This Kiwi.com deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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.
Mon 9/1411:30 pm
ONT
- DMK
1 stop27h 10m
Multiple Airlines
Mon 10/1211:00 pm
DMK
- ONT
2 stops33h 00m
Multiple Airlines
Deal found 7/9![Multiple Airlines logo]()
$1,200
This China Airlines deal was found by Cheapflights users on 7/5. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/2511:50 pm
ONT
- CNX
1 stop20h 35m
China Airlines
Thu 10/2911:25 am
CNX
- ONT
1 stop20h 25m
China Airlines
Deal found 7/5![China Airlines logo]()
$1,117
This Delta deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 8/226:00 am
ONT
- HKT
2 stops26h 10m
Delta
Mon 9/2811:25 pm
HKT
- ONT
2 stops37h 15m
Delta
Deal found 7/9![Delta logo]()
$965
This United Airlines deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” 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 11/41:52 pm
ONT
- BKK
2 stops30h 38m
United Airlines
Thu 11/194:55 pm
BKK
- ONT
2 stops20h 58m
United Airlines
Deal found 7/9![United Airlines logo]()
$1,078
This Mytrip deal was found by Cheapflights users on 7/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Fri 9/116:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,204
This Korean Air deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:20 am
ONT
- HKT
2 stops24h 50m
Korean Air
Thu 11/511:40 pm
HKT
- ONT
2 stops32h 32m
Korean Air
Deal found 7/7![Korean Air logo]()
$1,014
Last-minute flights from Ontario to ThailandDiscover last-minute flight deals from Ontario to Thailand. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Thailand. Data last updated July 9, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 7/6. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2012:45 am
ONT
- DMK
2 stops31h 55m
Multiple Airlines
Tue 7/286:40 am
DMK
- ONT
2 stops26h 00m
Multiple Airlines
Deal found 7/6![Multiple Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/29:40 am
ONT
- BKK
2 stops46h 05m
Delta
Wed 9/29:50 am
BKK
- ONT
2 stops26h 33m
Delta
Deal found 7/7![Delta logo]()
$827
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/46:00 am
ONT
- BKK
2 stops27h 35m
Delta
Wed 9/211:30 pm
BKK
- ONT
2 stops38h 04m
Delta
Deal found 7/7![Delta logo]()
$821
This lol.travel deal was found by Cheapflights users on 7/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Mon 8/242:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 7/5![Korean Air logo]()
$769
This lol.travel deal was found by Cheapflights users on 7/5. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/106:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Sun 8/232:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 7/5![Korean Air logo]()
$804
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
ONT
- BKK
2 stops27h 35m
Delta
Sat 8/292:35 am
BKK
- ONT
2 stops34h 59m
Delta
Deal found 7/8![Delta logo]()
$865
This Korean Air deal was found by Cheapflights users on 7/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/206:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 8/262:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 7/6![Korean Air logo]()
$826
This Korean Air deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Mon 9/711:25 pm
HKT
- ONT
2 stops31h 55m
Korean Air
Deal found 7/9![Korean Air logo]()
$999
This Delta deal was found by Cheapflights users on 7/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/226:00 am
ONT
- HKT
2 stops26h 10m
Delta
Tue 9/2911:25 pm
HKT
- ONT
2 stops37h 15m
Delta
Deal found 7/6![Delta logo]()
$965
This Delta deal was found by Cheapflights users on 7/5. 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 8/226:00 am
ONT
- HKT
2 stops26h 10m
Delta
Sat 8/2911:25 pm
HKT
- ONT
2 stops38h 09m
Delta
Deal found 7/5![Delta logo]()
$1,009
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 9/1411:20 am
CNX
- ONT
1 stop21h 20m
China Airlines
Deal found 7/5![China Airlines logo]()
$1,041
This lol.travel deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:20 am
ONT
- BKK
2 stops41h 15m
Korean Air
Sun 9/69:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 7/9![Korean Air logo]()
$751
One-way flights from Ontario to ThailandSearch for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
Search for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This SmartFares deal was found by Cheapflights users on 7/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/317:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 7/5![Korean Air logo]()
$397
This SmartFares deal was found by Cheapflights users on 7/6. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 7/6![Korean Air logo]()
$398
This Kissandfly.com deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:20 am
ONT
- BKK
2 stops24h 10m
Korean Air
Deal found 7/8![Korean Air logo]()
$412
This SmartFares deal was found by Cheapflights users on 7/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 7/5![Korean Air logo]()
$416
This Bravofly deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/196:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 7/7![Korean Air logo]()
$417
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/316:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 7/8![Delta logo]()
$420
This Korean Air deal was found by Cheapflights users on 7/6. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 7/6![Korean Air logo]()
$423
This Delta deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/296:00 am
ONT
- BKK
2 stops24h 30m
Delta
Deal found 7/8![Delta logo]()
$428
This Kissandfly.com deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 12/67:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 7/7![Korean Air logo]()
$430
This Korean Air deal was found by Cheapflights users on 7/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/287:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 7/8![Korean Air logo]()
$431
This Korean Air deal was found by Cheapflights users on 7/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:20 am
ONT
- CNX
2 stops25h 35m
Korean Air
Deal found 7/9![Korean Air logo]()
$431
This Delta deal was found by Cheapflights users on 7/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/181:00 pm
ONT
- BKK
2 stops46h 05m
Delta
Deal found 7/7![Delta logo]()
$439
Find flight deals from Ontario to Thailand
Keep the following information in mind while searching for Ontario to Thailand flight deals. Data was last updated July 9, 2026.
Round-trip from | $751 (lol.travel) |
|---|---|
One-way from | $397 (SmartFares) |
Popular in | December |
Cheapest in | March |
Average price | $891 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Thailand 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 July 9, 2026.
Use the filters below to find and compare flights from Ontario to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Mon 10/26
6:00 am-10:55 pm
2 stops26h 55m
Chiang Mai
Wed 11/18
12:15 am-4:12 pm
2 stops30h 57m
$821
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 10/13
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Thu 10/29
9:40 am-5:12 pm
2 stops21h 32m
$876
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Sun 10/25
6:20 am-10:55 pm
2 stops26h 35m
Chiang Mai
Wed 10/28
12:15 am-5:12 pm
2 stops30h 57m
$910
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Wed 10/7
6:00 am-10:10 pm
2 stops26h 10m
Phuket City
Mon 1/25
11:40 pm-4:12 pm
2 stops31h 32m
$921
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Wed 10/7
6:00 am-10:10 pm
2 stops26h 10m
Phuket City
Tue 1/26
11:40 pm-10:43 pm
2 stops38h 03m
$921
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Thu 9/3
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Mon 9/14
11:25 pm-10:40 pm
2 stops37h 15m
$926
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Tue 9/1
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Mon 9/14
11:25 pm-10:40 pm
2 stops37h 15m
$926
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Tue 9/1
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Sun 9/13
11:25 pm-10:40 pm
2 stops37h 15m
$926
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Tue 10/27
6:00 am-10:55 pm
2 stops26h 55m
Chiang Mai
Fri 11/20
12:15 am-5:17 pm
2 stops32h 02m
$944
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 12/2
6:00 am-12:20 am
2 stops27h 20m
Bangkok Suvarnabhumi
Mon 12/21
9:10 am-5:47 pm
2 stops23h 37m
$948
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from Ontario with our price prediction graph.
ONT-BKK
ONT-CNX
ONT-HKT
ONT-DMK
ONT-KBV
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 Thailand
ONT-TH0
ONT-BKK
ONT-CNX
ONT-HKT
ONT-DMK
What is the cheapest month to book a flight from Ontario to Thailand?
Currently, July is the cheapest month in which you can book a flight from Ontario to Thailand (average of $457). Flying from Ontario to Thailand in December is currently the most expensive (average of $732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Ontario to Thailand?
The best time to book flights from Ontario to Thailand is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Thailand. Reviews last updated July 9, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
8.6
Crew
9.2
Boarding
8.9
Overall
8.8
Comfort
8.9
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Crew
9.2
Boarding
8.9
Overall
8.8
Comfort
8.9
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Crew
9.2
Boarding
8.9
Overall
8.8
Comfort
8.9
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Crew
9.2
Boarding
8.9
Overall
8.8
Comfort
8.9
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Crew
9.2
Boarding
8.9
Overall
8.8
Comfort
8.9
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Thailand. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Alternative routes for Ontario to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Thailand by cabin class
Find flights from Ontario to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Thailand flights
Browse other Ontario and Thailand flight options. Last updated on July 9, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Thailand flights
Consider these flights traveling from Ontario to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 4 airlines flying from Ontario to Thailand
Discover the top 4 airlines that operate flights from Ontario to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$668 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$826 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$1,184 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$828 | FlexibilityNo cancel fee | On-timeN/A |