$340+ 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 7/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Apr 22 — Apr 291
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Bangkok with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
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Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Bangkok
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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 23, 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 23, 2026.
This lol.travel deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 stops24h 45m
Korean Air
Tue 5/129:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 3/21![Korean Air logo]()
$687
This lol.travel deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 stops24h 45m
Korean Air
Wed 5/1311:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/22![Korean Air logo]()
$692
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/267:00 am
ONT
- BKK
2 stops24h 45m
Delta
Tue 5/199:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 3/22![Delta logo]()
$710
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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
Korean Air
Tue 5/1211:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/22![Korean Air logo]()
$715
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/97:00 am
ONT
- BKK
2 stops28h 05m
Delta
Sat 9/1911:30 pm
BKK
- ONT
2 stops38h 14m
Delta
Deal found 3/22![Delta logo]()
$722
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 stops26h 35m
Korean Air
Sat 9/1911:30 pm
BKK
- ONT
2 stops31h 46m
Korean Air
Deal found 3/22![Korean Air logo]()
$727
This Trip.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/267:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Tue 5/129:50 am
BKK
- ONT
2 stops21h 20m
Korean Air
Deal found 3/21![Korean Air logo]()
$728
This SmartFares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 10/2012:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Wed 11/42:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 3/20![China Airlines logo]()
$749
This SmartFares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 9/812:45 am
ONT
- BKK
1 stop21h 25m
China Airlines
Tue 9/221:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 3/20![China Airlines logo]()
$750
This SmartFares deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 9/1612:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Sun 9/2710:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 3/22![China Airlines logo]()
$752
This Rumbo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 10/211:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 3/20![China Airlines logo]()
$758
This Mytrip deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/2912:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Fri 5/87:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,042
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 23, 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 23, 2026.
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/276:00 am
ONT
- BKK
2 stops27h 35m
Delta
Fri 5/89:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 3/20![Delta logo]()
$819
This China Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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.
Fri 5/112:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 5/62:40 am
BKK
- ONT
1 stop29h 20m
China Airlines
Deal found 3/18![China Airlines logo]()
$842
This Korean Air deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 7/77:00 am
ONT
- BKK
2 stops28h 05m
Korean Air
Mon 7/202:35 am
BKK
- ONT
2 stops34h 05m
Korean Air
Deal found 3/18![Korean Air logo]()
$861
This China Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/912:10 am
ONT
- BKK
2 stops23h 10m
Multiple Airlines
Sun 5/315:30 pm
BKK
- ONT
1 stop38h 30m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$962
This United Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/236:00 am
ONT
- BKK
2 stops37h 35m
United Airlines
Thu 4/309:35 am
BKK
- ONT
2 stops51h 24m
United Airlines
Deal found 3/18![United Airlines logo]()
$1,059
This China Airlines deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/1112:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Mon 5/1110:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 3/19![China Airlines logo]()
$911
This Korean Air deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 7/77:00 am
ONT
- BKK
2 stops28h 05m
Korean Air
Sat 7/189:40 pm
BKK
- ONT
2 stops33h 36m
Korean Air
Deal found 3/18![Korean Air logo]()
$1,005
This Delta deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/126:00 am
ONT
- BKK
2 stops25h 45m
Delta
Thu 5/711:30 pm
BKK
- ONT
2 stops31h 40m
Delta
Deal found 3/19![Delta logo]()
$1,062
This China Airlines deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 5/312:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Mon 6/155:50 pm
BKK
- ONT
2 stops38h 10m
China Airlines
Deal found 3/18![China Airlines logo]()
$967
This Mytrip deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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
1 stop29h 20m
Multiple Airlines
Thu 4/236:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 3/18![Multiple Airlines logo]()
$1,143
This Korean Air deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 8/96:00 am
ONT
- BKK
2 stops25h 45m
Korean Air
Tue 8/119:50 am
BKK
- ONT
2 stops50h 50m
Korean Air
Deal found 3/21![Korean Air logo]()
$1,082
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 7/286:20 am
ONT
- BKK
2 stops27h 15m
Delta
Mon 8/172:35 am
BKK
- ONT
2 stops28h 41m
Delta
Deal found 3/21![Delta logo]()
$1,085
This China Airlines deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 9/1312:45 am
ONT
- BKK
2 stops22h 35m
China Airlines
Thu 9/1710:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 3/22![China Airlines logo]()
$987
This Mytrip deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 5/1312:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Thu 5/216:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,182
This Kiwi.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/3112:45 am
ONT
- DMK
1 stop30h 35m
Multiple Airlines
Wed 8/197:30 am
DMK
- ONT
2 stops24h 10m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,204
This Mytrip deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 stops24h 00m
Multiple Airlines
Wed 4/226:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,242
This Mytrip deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 30m
Multiple Airlines
Tue 4/216:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,244
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/2612:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Wed 5/136:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,247
This Mytrip deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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
Fri 5/17:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,254
This Mytrip deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” 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 4/1112:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 4/227:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/19![Multiple Airlines logo]()
$1,293
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1412:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Fri 4/247:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,315
This Mytrip deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1412:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Wed 4/226:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 3/22![Multiple Airlines logo]()
$1,355
This Mytrip deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/2512:10 am
ONT
- DMK
2 stops22h 55m
Multiple Airlines
Wed 5/137:25 am
DMK
- ONT
1 stop24h 35m
Multiple Airlines
Deal found 3/21![Multiple Airlines logo]()
$1,372
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated March 23, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated March 23, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/207:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Fri 5/89:40 pm
BKK
- ONT
2 stops33h 25m
Korean Air
Deal found 3/22![Korean Air logo]()
$765
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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
Korean Air
Tue 5/1211:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/22![Korean Air logo]()
$715
This oojo deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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.
Tue 4/2112:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Fri 5/2210:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 3/23![China Airlines logo]()
$794
This SmartFares deal was found by Cheapflights users on 3/18. Clicking the “Pick Dates” 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 4/2112:10 am
ONT
- BKK
1 stop35h 15m
China Airlines
Wed 5/65:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 3/18![China Airlines logo]()
$798
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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
Mon 5/119:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 3/22![Delta logo]()
$760
This Delta deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/255:55 pm
ONT
- BKK
2 stops37h 50m
Delta
Fri 5/299:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 3/21![Delta logo]()
$766
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/267:00 am
ONT
- BKK
2 stops24h 45m
Delta
Tue 5/199:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 3/22![Delta logo]()
$710
This Trip.com deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 4/267:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Tue 5/129:50 am
BKK
- ONT
2 stops21h 20m
Korean Air
Deal found 3/21![Korean Air logo]()
$728
This lol.travel deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 stops24h 45m
Korean Air
Tue 5/129:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 3/21![Korean Air logo]()
$687
This lol.travel deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 stops24h 45m
Korean Air
Wed 5/1311:30 pm
BKK
- ONT
2 stops31h 40m
Korean Air
Deal found 3/22![Korean Air logo]()
$692
This oojo deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
Tue 4/2812:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Tue 5/122:40 am
BKK
- ONT
1 stop29h 20m
China Airlines
Deal found 3/20![China Airlines logo]()
$799
This Mytrip deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 4/2912:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Fri 5/87:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 3/20![Multiple Airlines logo]()
$1,042
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 23, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated March 23, 2026.
This iWofly deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/256:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 3/22![Korean Air logo]()
$340
This Trip.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/277:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/22![Korean Air logo]()
$342
This Trip.com deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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.
Tue 4/217:00 am
ONT
- BKK
2 stops26h 35m
Korean Air
Deal found 3/22![Korean Air logo]()
$344
This Delta deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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 4/206:00 am
ONT
- BKK
2 stops27h 35m
Delta
Deal found 3/23![Delta logo]()
$364
This Korean Air deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/257:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/22![Korean Air logo]()
$367
This Delta deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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 7/207:00 am
ONT
- BKK
2 stops26h 35m
Delta
Deal found 3/20![Delta logo]()
$396
This Delta deal was found by Cheapflights users on 3/22. Clicking the “Pick Dates” 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 4/1311:53 am
ONT
- BKK
2 stops59h 42m
Delta
Deal found 3/22![Delta logo]()
$402
This iWofly deal was found by Cheapflights users on 3/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/17:00 am
ONT
- BKK
2 stops26h 35m
Korean Air
Deal found 3/19![Korean Air logo]()
$423
This SmartFares deal was found by Cheapflights users on 3/20. Clicking the “Pick Dates” 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.
Sun 5/312:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 3/20![China Airlines logo]()
$425
This Korean Air deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” 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 9/37:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 3/21![Korean Air logo]()
$435
This Gotogate deal was found by Cheapflights users on 3/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 3/21![China Airlines logo]()
$437
This Trip.com deal was found by Cheapflights users on 3/23. Clicking the “Pick Dates” 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.
Wed 5/612:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Deal found 3/23![Multiple Airlines logo]()
$525
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 23, 2026.
Round-trip from | $687 (lol.travel) |
|---|---|
One-way from | $340 (iWofly) |
Popular in | December |
Cheapest in | January |
Average price | $797 |
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 23, 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
Mon 4/27
6:00 am-11:35 pm
2 stops27h 35m
Bangkok Suvarnabhumi
Fri 5/8
9:50 am-5:10 pm
2 stops21h 20m
$819
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 5/1
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Wed 5/6
2:40 am-6:00 pm
1 stop29h 20m
$842
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 7/7
7:00 am-1:05 am
2 stops28h 05m
Bangkok Suvarnabhumi
Mon 7/20
2:35 am-10:40 pm
2 stops34h 05m
$861
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 4/11
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Mon 5/11
10:50 am-6:00 pm
1 stop21h 10m
$911
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 5/9
12:10 am-1:20 pm
2 stops23h 10m
Bangkok Suvarnabhumi
Sun 5/31
5:30 pm-6:00 pm
1 stop38h 30m
$962
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 5/3
12:10 am-4:20 pm
1 stop26h 10m
Bangkok Suvarnabhumi
Mon 6/15
5:50 pm-6:00 pm
2 stops38h 10m
$967
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 9/13
12:45 am-1:20 pm
2 stops22h 35m
Bangkok Suvarnabhumi
Thu 9/17
10:50 am-6:00 pm
1 stop21h 10m
$987
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 7/7
7:00 am-1:05 am
2 stops28h 05m
Bangkok Suvarnabhumi
Sat 7/18
9:40 pm-5:16 pm
2 stops33h 36m
$1,005
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 4/23
6:00 am-9:35 am
2 stops37h 35m
Bangkok Suvarnabhumi
Thu 4/30
9:35 am-10:59 pm
2 stops51h 24m
$1,059
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 4/12
6:00 am-9:45 pm
2 stops25h 45m
Bangkok Suvarnabhumi
Thu 5/7
11:30 pm-5:10 pm
2 stops31h 40m
$1,062
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 13, 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 23, 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.
Food
8.7
Crew
9.2
Overall
9.0
Entertainment
8.8
Boarding
9.0
Comfort
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
9.0
Entertainment
8.8
Boarding
9.0
Comfort
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
9.0
Entertainment
8.8
Boarding
9.0
Comfort
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
9.0
Entertainment
8.8
Boarding
9.0
Comfort
8.9
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Food
8.7
Crew
9.2
Overall
9.0
Entertainment
8.8
Boarding
9.0
Comfort
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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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 23, 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 23, 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 23, 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$837 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$815 | FlexibilityNo cancel fee | On-timeN/A |