$406+ 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 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Aug 27 — Sep 31
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 July 28, 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 July 28, 2026.
This Bravofly deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/106:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Thu 9/1711:30 pm
BKK
- ONT
2 stops37h 10m
Korean Air
Deal found 7/27![Korean Air logo]()
$765
This SmartFares deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/2712:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 9/82:40 am
BKK
- ONT
1 stop30h 00m
China Airlines
Deal found 7/25![China Airlines logo]()
$801
This Jetabroad deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sun 8/302:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 7/27![Korean Air logo]()
$811
This lastminute.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Wed 8/191:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$814
This flugladen.de deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 9/151:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$816
This oojo deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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.
Mon 8/1712:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 8/2510:50 am
BKK
- ONT
1 stop21h 50m
China Airlines
Deal found 7/24![China Airlines logo]()
$818
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Mon 8/3112:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Thu 10/110:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 7/25![China Airlines logo]()
$819
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:20 am
ONT
- BKK
2 stops28h 45m
Delta
Thu 9/109:50 am
BKK
- ONT
2 stops26h 14m
Delta
Deal found 7/27![Delta logo]()
$820
This Delta deal was found by Cheapflights users on 7/23. 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 8/176:20 am
ONT
- BKK
2 stops27h 15m
Delta
Mon 10/59:40 pm
BKK
- ONT
2 stops33h 32m
Delta
Deal found 7/23![Delta logo]()
$821
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Sat 8/1512:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Mon 8/311:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$822
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Sat 9/1910:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 7/25![China Airlines logo]()
$824
This Mytrip deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 9/412:45 am
ONT
- DMK
2 stops26h 50m
Multiple Airlines
Fri 9/187:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$998
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 July 28, 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 July 28, 2026.
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am
ONT
- BKK
2 stops25h 45m
Delta
Tue 9/292:35 am
BKK
- ONT
2 stops34h 05m
Delta
Deal found 7/27![Delta logo]()
$820
This Korean Air deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air 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
Korean Air
Wed 9/22:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 7/27![Korean Air logo]()
$826
This China Airlines deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/1412:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Sat 8/225:30 pm
BKK
- ONT
1 stop39h 10m
China Airlines
Deal found 7/25![China Airlines logo]()
$870
This United Airlines deal was found by Cheapflights users on 7/23. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/304:03 pm
ONT
- BKK
2 stops27h 32m
United Airlines
Wed 10/147:00 am
BKK
- ONT
2 stops22h 22m
United Airlines
Deal found 7/23![United Airlines logo]()
$936
This Mytrip deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/3012:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Tue 9/157:25 am
DMK
- ONT
1 stop25h 15m
Multiple Airlines
Deal found 7/24![Multiple Airlines logo]()
$1,038
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:20 am
ONT
- BKK
2 stops27h 15m
Delta
Thu 9/39:50 am
BKK
- ONT
2 stops27h 44m
Delta
Deal found 7/27![Delta logo]()
$820
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/266:00 am
ONT
- BKK
2 stops27h 35m
Delta
Mon 9/72:35 am
BKK
- ONT
2 stops34h 05m
Delta
Deal found 7/27![Delta logo]()
$820
This China Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 12/210:55 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 7/26![China Airlines logo]()
$913
This United Airlines deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/221:56 pm
ONT
- BKK
2 stops48h 39m
United Airlines
Fri 10/93:45 pm
BKK
- ONT
2 stops40h 01m
United Airlines
Deal found 7/27![United Airlines logo]()
$988
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:20 am
ONT
- BKK
2 stops28h 45m
Delta
Thu 9/109:50 am
BKK
- ONT
2 stops26h 14m
Delta
Deal found 7/27![Delta logo]()
$820
This China Airlines deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Fri 12/42:05 pm
BKK
- ONT
1 stop18h 00m
China Airlines
Deal found 7/26![China Airlines logo]()
$913
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2212:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Mon 9/76:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,051
This Delta deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 8/286:20 am
ONT
- BKK
2 stops25h 25m
Delta
Sat 9/1911:30 pm
BKK
- ONT
2 stops37h 10m
Delta
Deal found 7/24![Delta logo]()
$844
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/2412:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Sat 9/126:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,064
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Wed 8/2612:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Tue 9/156:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,066
This Delta deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/146:20 am
ONT
- BKK
2 stops25h 25m
Delta
Fri 8/219:50 am
BKK
- ONT
2 stops26h 55m
Delta
Deal found 7/25![Delta logo]()
$955
This Mytrip deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 10/1512:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Sun 11/16:10 am
DMK
- ONT
1 stop25h 55m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,100
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1512:45 am
ONT
- DMK
1 stop33h 30m
Multiple Airlines
Sat 8/226:15 am
DMK
- ONT
1 stop25h 25m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,127
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 am
ONT
- DMK
2 stops23h 40m
Multiple Airlines
Thu 9/106:30 am
DMK
- ONT
2 stops26h 10m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,129
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/2411:50 pm
ONT
- DMK
1 stop23h 45m
Multiple Airlines
Sun 11/87:45 am
DMK
- ONT
1 stop24h 20m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$1,139
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:55 pm
ONT
- DMK
1 stop34h 20m
Multiple Airlines
Mon 8/316:15 am
DMK
- ONT
1 stop25h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,164
This Kiwi.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Sun 10/189:40 am
DMK
- ONT
1 stop22h 20m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,171
This Kiwi.com deal was found by Cheapflights users on 7/23. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:10 am
ONT
- DMK
1 stop26h 30m
Multiple Airlines
Wed 9/309:30 pm
DMK
- ONT
2 stops57h 35m
Multiple Airlines
Deal found 7/23![Multiple Airlines logo]()
$1,175
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated July 28, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated July 28, 2026 and is based on user searches.
This lastminute.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/512:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Wed 8/191:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$814
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Fri 8/712:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Tue 8/181:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$819
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Sat 9/1910:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 7/25![China Airlines logo]()
$824
This oojo deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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.
Sat 8/1512:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Mon 8/311:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$822
This oojo deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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.
Mon 8/1712:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 8/2510:50 am
BKK
- ONT
1 stop21h 50m
China Airlines
Deal found 7/24![China Airlines logo]()
$818
This Delta deal was found by Cheapflights users on 7/23. 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 8/176:20 am
ONT
- BKK
2 stops27h 15m
Delta
Mon 10/59:40 pm
BKK
- ONT
2 stops33h 32m
Delta
Deal found 7/23![Delta logo]()
$821
This CheapOair deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1712:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Sun 8/3010:50 am
BKK
- ONT
1 stop21h 50m
China Airlines
Deal found 7/25![China Airlines logo]()
$825
This Jetabroad deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/246:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sun 8/302:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 7/27![Korean Air logo]()
$811
This SmartFares deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/2712:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 9/82:40 am
BKK
- ONT
1 stop30h 00m
China Airlines
Deal found 7/25![China Airlines logo]()
$801
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:20 am
ONT
- BKK
2 stops28h 45m
Delta
Thu 9/109:50 am
BKK
- ONT
2 stops26h 14m
Delta
Deal found 7/27![Delta logo]()
$820
This flugladen.de deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 9/151:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/25![China Airlines logo]()
$816
This Mytrip deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Tue 9/86:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/27![Multiple Airlines logo]()
$1,016
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 July 28, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated July 28, 2026.
This SmartFares deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:50 pm
ONT
- BKK
1 stop26h 55m
China Airlines
Deal found 7/26![China Airlines logo]()
$406
This SmartFares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/66:17 am
ONT
- BKK
2 stops25h 28m
Korean Air
Deal found 7/27![Korean Air logo]()
$408
This Delta deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/196:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 7/27![Delta logo]()
$414
This Korean Air deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:04 am
ONT
- BKK
2 stops23h 26m
Korean Air
Deal found 7/28![Korean Air logo]()
$417
This oojo deal was found by Cheapflights users on 7/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:50 pm
ONT
- BKK
1 stop20h 00m
China Airlines
Deal found 7/28![China Airlines logo]()
$419
This Korean Air deal was found by Cheapflights users on 7/24. Clicking the “Pick Dates” 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 11/247:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 7/24![Korean Air logo]()
$421
This Korean Air deal was found by Cheapflights users on 7/23. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:20 am
ONT
- BKK
2 stops24h 10m
Korean Air
Deal found 7/23![Korean Air logo]()
$423
This Kissandfly.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 7/27![Korean Air logo]()
$424
This Delta deal was found by Cheapflights users on 7/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/139:52 am
ONT
- BKK
2 stops61h 43m
Delta
Deal found 7/26![Delta logo]()
$425
This Kissandfly.com deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 7/27![China Airlines logo]()
$426
This SmartFares deal was found by Cheapflights users on 7/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 7/27![China Airlines logo]()
$427
This Kiwi.com deal was found by Cheapflights users on 7/25. Clicking the “Pick Dates” 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 8/248:48 am
ONT
- DMK
3 stops49h 27m
Multiple Airlines
Deal found 7/25![Multiple Airlines logo]()
$502
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 July 28, 2026.
Round-trip from | $765 (Bravofly) |
|---|---|
One-way from | $406 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $1,129 |
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 July 28, 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 9/1
6:00 am-9:45 pm
2 stops25h 45m
Bangkok Suvarnabhumi
Tue 9/29
2:35 am-10:40 pm
2 stops34h 05m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 8/27
6:20 am-11:35 pm
2 stops27h 15m
Bangkok Suvarnabhumi
Thu 9/3
9:50 am-11:34 pm
2 stops27h 44m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 8/26
6:00 am-11:35 pm
2 stops27h 35m
Bangkok Suvarnabhumi
Mon 9/7
2:35 am-10:40 pm
2 stops34h 05m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 8/27
6:20 am-1:05 am
2 stops28h 45m
Bangkok Suvarnabhumi
Thu 9/10
9:50 am-10:04 pm
2 stops26h 14m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 8/31
6:20 am-1:05 am
2 stops28h 45m
Bangkok Suvarnabhumi
Wed 9/2
2:35 am-10:45 pm
2 stops34h 10m
$826
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 8/28
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Sat 9/19
11:30 pm-10:40 pm
2 stops37h 10m
$844
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 8/14
12:45 am-1:25 am
1 stop34h 40m
Bangkok Suvarnabhumi
Sat 8/22
5:30 pm-6:40 pm
1 stop39h 10m
$870
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/29
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Wed 12/2
10:55 am-5:05 pm
1 stop21h 10m
$913
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/29
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Fri 12/4
2:05 pm-5:05 pm
1 stop18h 00m
$913
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/30
4:03 pm-9:35 am
2 stops27h 32m
Bangkok Suvarnabhumi
Wed 10/14
7:00 am-3:22 pm
2 stops22h 22m
$936
Showing 1-10 of 41 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
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 $764). Flying from Ontario to Bangkok in December is currently the most expensive (average of $1,528). 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 much does it cost to fly round-trip from Ontario to Bangkok?
Airfare is below average for this route at the moment.
Ontario to Bangkok flights typically cost between $768 and $995 in September.The cheapest round-trip price found within the last 5 days was $765 on Korean Air (Sep 10-Sep 17).
How far ahead should I book a flight from Ontario to Bangkok?
Booking 28 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.
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 July 28, 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.
Crew
9.1
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.8
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.8
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.8
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.8
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.8
Entertainment
8.7
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 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
Flights by cabin class
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 July 28, 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 July 28, 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 July 28, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$666 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$455 | Average$813 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$868 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$835 | FlexibilityNo cancel fee | On-timeN/A |