$304+ Cheap flights from Ontario (ONT) to Bangkok
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 5/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Apr 9 — Apr 161
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Bangkok with Cheapflights
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Cheapest flights from Ontario to BangkokExplore the most affordable flight options available from Ontario to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
Explore the most affordable flight options available from Ontario to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on March 10, 2026.
This lol.travel deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 am
ONT
- BKK
2 stops26h 35m
Korean Air
Tue 5/1211:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/10![Korean Air logo]()
$567
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 9/36:00 am
ONT
- BKK
2 stops25h 45m
Delta
Mon 9/289:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 3/9![Delta logo]()
$611
This Delta deal was found by Cheapflights users on 3/9. 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 4/195:05 pm
ONT
- BKK
2 stops40h 30m
Delta
Mon 4/279:40 pm
BKK
- ONT
2 stops33h 35m
Delta
Deal found 3/9![Delta logo]()
$616
This Delta deal was found by Cheapflights users on 3/9. 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 9/65:55 pm
ONT
- BKK
2 stops37h 50m
Delta
Wed 9/309:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 3/9![Delta logo]()
$617
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Wed 9/97:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sat 9/2611:30 pm
BKK
- ONT
2 stops31h 46m
Korean Air
Deal found 3/9![Korean Air logo]()
$641
This Delta deal was found by Cheapflights users on 3/9. 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 9/55:05 pm
ONT
- BKK
2 stops38h 40m
Delta
Wed 9/309:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 3/9![Delta logo]()
$642
This Bravofly deal was found by Cheapflights users on 3/6. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Mon 4/279:40 pm
BKK
- ONT
2 stops33h 35m
Korean Air
Deal found 3/6![Korean Air logo]()
$643
This Delta deal was found by Cheapflights users on 3/9. 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 9/65:05 pm
ONT
- BKK
2 stops38h 40m
Delta
Sat 9/262:35 am
BKK
- ONT
2 stops46h 39m
Delta
Deal found 3/9![Delta logo]()
$648
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 9/46:00 am
ONT
- BKK
2 stops25h 45m
Delta
Mon 9/289:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 3/9![Delta logo]()
$661
This SmartFares deal was found by Cheapflights users on 3/6. 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 8/257:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 9/62:35 am
BKK
- ONT
2 stops28h 41m
Korean Air
Deal found 3/6![Korean Air logo]()
$664
This Korean Air deal was found by Cheapflights users on 3/9. 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 9/47:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 9/2711:30 pm
BKK
- ONT
2 stops31h 46m
Korean Air
Deal found 3/9![Korean Air logo]()
$666
This Mytrip deal was found by Cheapflights users on 3/8. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Fri 5/157:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/8![Multiple Airlines logo]()
$965
Best flights from Ontario to BangkokDiscover carefully curated flight deals from Ontario to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
Discover carefully curated flight deals from Ontario to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated March 10, 2026.
This China Airlines deal was found by Cheapflights users on 3/9. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/1212:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Mon 6/11:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 3/9![China Airlines logo]()
$782
This Korean Air deal was found by Cheapflights users on 3/9. 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 7/107:00 am
ONT
- BKK
2 stops28h 05m
Korean Air
Wed 7/152:35 am
BKK
- ONT
2 stops34h 05m
Korean Air
Deal found 3/9![Korean Air logo]()
$786
This United Airlines deal was found by Cheapflights users on 3/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/18:00 am
ONT
- BKK
2 stops25h 55m
United Airlines
Wed 11/44:55 pm
BKK
- ONT
2 stops21h 11m
United Airlines
Deal found 3/7![United Airlines logo]()
$838
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/2012:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Tue 4/287:25 am
DMK
- ONT
1 stop24h 35m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$975
This United Airlines deal was found by Cheapflights users on 3/5. 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.
Thu 4/166:49 pm
ONT
- BKK
2 stops24h 46m
United Airlines
Thu 4/233:45 pm
BKK
- ONT
2 stops45h 00m
United Airlines
Deal found 3/5![United Airlines logo]()
$848
This China Airlines deal was found by Cheapflights users on 3/5. 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.
Sat 4/412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Fri 4/241:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 3/5![China Airlines logo]()
$885
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Thu 7/167:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sat 7/2511:30 pm
BKK
- ONT
2 stops31h 46m
Korean Air
Deal found 3/9![Korean Air logo]()
$896
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Sat 5/237:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$989
This China Airlines deal was found by Cheapflights users on 3/8. 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.
Sat 5/212:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Sun 5/175:50 pm
BKK
- ONT
2 stops38h 10m
China Airlines
Deal found 3/8![China Airlines logo]()
$944
This Korean Air deal was found by Cheapflights users on 3/8. 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.
Mon 5/47:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Wed 7/292:35 am
BKK
- ONT
2 stops28h 41m
Korean Air
Deal found 3/8![Korean Air logo]()
$968
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Thu 4/237:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$998
This Korean Air deal was found by Cheapflights users on 3/8. 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.
Tue 5/57:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Tue 7/282:35 am
BKK
- ONT
2 stops28h 41m
Korean Air
Deal found 3/8![Korean Air logo]()
$968
This China Airlines deal was found by Cheapflights users on 3/6. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Sun 8/305:50 pm
BKK
- ONT
2 stops38h 50m
China Airlines
Deal found 3/6![China Airlines logo]()
$979
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Thu 4/167:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$1,044
This China Airlines deal was found by Cheapflights users on 3/6. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/1812:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Sun 5/35:50 pm
BKK
- ONT
2 stops38h 10m
China Airlines
Deal found 3/6![China Airlines logo]()
$1,010
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/1512:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 4/227:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,045
This China Airlines deal was found by Cheapflights users on 3/6. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/712:10 am
ONT
- BKK
1 stop35h 15m
China Airlines
Tue 5/265:50 pm
BKK
- ONT
2 stops38h 10m
China Airlines
Deal found 3/6![China Airlines logo]()
$1,010
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/1312:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 4/297:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$1,059
This Mytrip deal was found by Cheapflights users on 3/6. 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 5/1412:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Thu 5/287:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,084
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Sat 4/1812:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Sun 5/37:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,088
This Mytrip deal was found by Cheapflights users on 3/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/1712:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Mon 4/277:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/7![Multiple Airlines logo]()
$1,088
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Wed 4/812:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Wed 4/157:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,128
This Mytrip deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Sun 5/177:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/10![Multiple Airlines logo]()
$1,132
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Sun 4/1212:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Thu 4/307:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$1,134
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated March 10, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated March 10, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/236:00 am
ONT
- BKK
2 stops28h 55m
Korean Air
Tue 4/2111:30 pm
BKK
- ONT
2 stops31h 45m
Korean Air
Deal found 3/10![Korean Air logo]()
$696
This Delta deal was found by Cheapflights users on 3/9. 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 4/195:05 pm
ONT
- BKK
2 stops40h 30m
Delta
Mon 4/279:40 pm
BKK
- ONT
2 stops33h 35m
Delta
Deal found 3/9![Delta logo]()
$616
This Delta deal was found by Cheapflights users on 3/9. 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 4/207:00 am
ONT
- BKK
2 stops26h 35m
Delta
Mon 4/279:40 pm
BKK
- ONT
2 stops33h 35m
Delta
Deal found 3/9![Delta logo]()
$611
This Bravofly deal was found by Cheapflights users on 3/6. 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 Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/207:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Mon 4/279:40 pm
BKK
- ONT
2 stops33h 35m
Korean Air
Deal found 3/6![Korean Air logo]()
$643
This Kiwi.com deal was found by Cheapflights users on 3/5. 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 4/2012:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Tue 4/287:25 am
DMK
- ONT
1 stop24h 35m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$975
This SmartFares deal was found by Cheapflights users on 3/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 5/109:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 3/7![Korean Air logo]()
$712
This Delta deal was found by Cheapflights users on 3/9. 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.
Thu 4/236:00 am
ONT
- BKK
2 stops25h 45m
Delta
Thu 4/309:40 pm
BKK
- ONT
2 stops33h 35m
Delta
Deal found 3/9![Delta logo]()
$686
This Delta deal was found by Cheapflights users on 3/5. 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.
Thu 4/237:00 am
ONT
- BKK
2 stops26h 35m
Delta
Wed 5/69:50 am
BKK
- ONT
2 stops21h 25m
Delta
Deal found 3/5![Delta logo]()
$711
This Delta deal was found by Cheapflights users on 3/5. 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.
Fri 4/246:00 am
ONT
- BKK
2 stops27h 35m
Delta
Thu 5/79:50 am
BKK
- ONT
2 stops26h 44m
Delta
Deal found 3/5![Delta logo]()
$716
This Delta deal was found by Cheapflights users on 3/9. 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.
Fri 4/247:00 am
ONT
- BKK
2 stops26h 35m
Delta
Wed 5/69:50 am
BKK
- ONT
2 stops21h 25m
Delta
Deal found 3/9![Delta logo]()
$720
This Korean Air deal was found by Cheapflights users on 3/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 4/247:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 5/39:40 pm
BKK
- ONT
2 stops33h 35m
Korean Air
Deal found 3/5![Korean Air logo]()
$721
This lol.travel deal was found by Cheapflights users on 3/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 am
ONT
- BKK
2 stops26h 35m
Korean Air
Tue 5/1211:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/10![Korean Air logo]()
$567
One-way flights from Ontario to BangkokSearch for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated March 10, 2026.
This SmartFares deal was found by Cheapflights users on 3/9. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/27:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/9![Korean Air logo]()
$304
This Delta deal was found by Cheapflights users on 3/9. 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 4/197:00 am
ONT
- BKK
2 stops26h 35m
Delta
Deal found 3/9![Delta logo]()
$314
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Sun 4/267:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/9![Korean Air logo]()
$317
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Tue 4/217:00 am
ONT
- BKK
2 stops24h 45m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$341
This Delta deal was found by Cheapflights users on 3/8. 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.
Wed 8/127:00 am
ONT
- BKK
2 stops26h 35m
Delta
Deal found 3/8![Delta logo]()
$346
This Korean Air deal was found by Cheapflights users on 3/9. 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.
Thu 7/167:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/9![Korean Air logo]()
$349
This Trip.com deal was found by Cheapflights users on 3/9. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/239:06 am
ONT
- BKK
2 stops46h 19m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$365
This Korean Air deal was found by Cheapflights users on 3/5. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/226:00 am
ONT
- BKK
2 stops28h 55m
Korean Air
Deal found 3/5![Korean Air logo]()
$367
This Trip.com deal was found by Cheapflights users on 3/6. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/612:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$513
This Kiwi.com deal was found by Cheapflights users on 3/9. 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 5/1112:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Deal found 3/9![Multiple Airlines logo]()
$514
This Mytrip deal was found by Cheapflights users on 3/6. 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.
Tue 5/1212:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Deal found 3/6![Multiple Airlines logo]()
$517
This Mytrip deal was found by Cheapflights users on 3/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am
ONT
- DMK
2 stops26h 55m
Multiple Airlines
Deal found 3/5![Multiple Airlines logo]()
$535
Find flight deals from Ontario to Bangkok
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated March 10, 2026.
Round-trip from | $586 (lol.travel) |
|---|---|
One-way from | $304 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $786 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Bangkok 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 March 10, 2026.
Use the filters below to find and compare flights from Ontario to Bangkok that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 5/12
12:10 am-4:20 pm
1 stop26h 10m
Bangkok Suvarnabhumi
Mon 6/1
1:20 pm-6:00 pm
1 stop18h 40m
$782
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 7/10
7:00 am-1:05 am
2 stops28h 05m
Bangkok Suvarnabhumi
Wed 7/15
2:35 am-10:40 pm
2 stops34h 05m
$786
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/1
8:00 am-11:55 pm
2 stops25h 55m
Bangkok Suvarnabhumi
Wed 11/4
4:55 pm-11:06 pm
2 stops21h 11m
$838
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 4/16
6:49 pm-9:35 am
2 stops24h 46m
Bangkok Suvarnabhumi
Thu 4/23
3:45 pm-10:45 pm
2 stops45h 00m
$848
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 4/4
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Fri 4/24
1:20 pm-6:00 pm
1 stop18h 40m
$885
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 7/16
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Sat 7/25
11:30 pm-5:16 pm
2 stops31h 46m
$896
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 5/2
12:10 am-4:20 pm
1 stop26h 10m
Bangkok Suvarnabhumi
Sun 5/17
5:50 pm-6:00 pm
2 stops38h 10m
$944
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 5/4
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Wed 7/29
2:35 am-5:16 pm
2 stops28h 41m
$968
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 5/5
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Tue 7/28
2:35 am-5:16 pm
2 stops28h 41m
$968
OntarioBangkok
ONT - DMK
ONTDMK
Ontario
Mon 4/20
12:10 am-7:30 pm
1 stop29h 20m
Bangkok Don Mueang Intl
Tue 4/28
7:25 am-6:00 pm
1 stop24h 35m
$975
Showing 1-10 of 45 resultsSorted by cheapest first
Best time to book a flight from Ontario to Bangkok
Have a flexible travel schedule? Discover the best time to fly to Bangkok from Ontario with our price prediction graph.
ONT-TH1
ONT-BKK
ONT-DMK
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 Bangkok
ONT-TH1
ONT-BKK
ONT-DMK
How far ahead should I book a flight from Ontario to Bangkok?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Bangkok. Price data was last updated on March 6, 2026.
Booking 83 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Bangkok?
Currently, January is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $503). Flying from Ontario to Bangkok in June is currently the most expensive (average of $748). 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.
Reviews of airlines servicing Bangkok
Get insights into the airlines that provide service to Bangkok. 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 Bangkok. Reviews last updated March 10, 2026.
Read through reviews of airlines operating flights from Ontario to Bangkok, such as STARLUX Airlines,Korean Air, andChina Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Comfort
8.9
Food
8.7
Crew
9.2
Entertainment
8.8
Overall
8.9
Boarding
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Comfort
8.9
Food
8.7
Crew
9.2
Entertainment
8.8
Overall
8.9
Boarding
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Comfort
8.9
Food
8.7
Crew
9.2
Entertainment
8.8
Overall
8.9
Boarding
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Comfort
8.9
Food
8.7
Crew
9.2
Entertainment
8.8
Overall
8.9
Boarding
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Comfort
8.9
Food
8.7
Crew
9.2
Entertainment
8.8
Overall
8.9
Boarding
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Bangkok. 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.
Alternative routes
Complete your trip
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Other flight options
Other flights from Ontario
Popular flights
Alternative routes for Ontario to Bangkok
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Bangkok by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Bangkok by cabin class
Find flights from Ontario to Bangkok, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Bangkok flights
Browse other Ontario and Bangkok flight options. Last updated on March 10, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on March 10, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Bangkok
Discover the top 4 airlines that operate flights from Ontario to Bangkok. 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 March 10, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$783 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$839 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$816 | FlexibilityNo cancel fee | On-timeN/A |