$420+ 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 16 — Aug 231
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 17, 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 17, 2026.
This Bravofly deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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.
Sun 8/306:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Sun 9/69:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 7/15![Korean Air logo]()
$797
This Jetabroad deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/106:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Tue 8/2511:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 7/16![Korean Air logo]()
$810
This Jetabroad deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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.
Tue 8/46:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Tue 9/111:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 7/12![Korean Air logo]()
$811
This Kissandfly.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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.
Thu 9/106:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sun 9/209:50 am
BKK
- ONT
2 stops50h 50m
Korean Air
Deal found 7/15![Korean Air logo]()
$816
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 9/86:20 am
ONT
- BKK
2 stops25h 25m
Delta
Mon 11/99:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 7/13![Delta logo]()
$820
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 9/306:00 am
ONT
- BKK
2 stops25h 45m
Delta
Tue 11/109:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 7/16![Delta logo]()
$821
This Korean Air deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 11/167:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 12/19:30 pm
BKK
- ONT
2 stops34h 47m
Korean Air
Deal found 7/15![Korean Air logo]()
$826
This Korean Air deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 12/317:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 1/2612:55 am
BKK
- ONT
2 stops28h 02m
Korean Air
Deal found 7/16![Korean Air logo]()
$844
This Korean Air deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 12/27:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 12/611:15 pm
BKK
- ONT
2 stops33h 02m
Korean Air
Deal found 7/14![Korean Air logo]()
$845
This Kissandfly.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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.
Sat 8/83:35 pm
ONT
- BKK
2 stops40h 10m
Multiple Airlines
Sun 8/239:40 pm
BKK
- ONT
2 stops39h 05m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$850
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
ONT
- BKK
2 stops27h 35m
Delta
Sat 8/292:35 am
BKK
- ONT
2 stops34h 59m
Delta
Deal found 7/13![Delta logo]()
$864
This Mytrip deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 8/1912:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Sat 8/296:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,067
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 17, 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 17, 2026.
This Delta deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 stops27h 35m
Delta
Wed 9/99:40 pm
BKK
- ONT
2 stops38h 24m
Delta
Deal found 7/12![Delta logo]()
$820
This China Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:45 am
ONT
- BKK
1 stop21h 25m
China Airlines
Tue 9/225:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 7/13![China Airlines logo]()
$977
This United Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/285:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Wed 9/99:35 am
BKK
- ONT
2 stops24h 26m
United Airlines
Deal found 7/16![United Airlines logo]()
$980
This Korean Air deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 7/276:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Mon 8/311:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 7/13![Korean Air logo]()
$1,045
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/1611:30 pm
ONT
- DMK
1 stop30h 00m
Multiple Airlines
Sat 10/2411:00 pm
DMK
- ONT
2 stops33h 05m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,231
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
ONT
- BKK
2 stops27h 35m
Delta
Sat 8/292:35 am
BKK
- ONT
2 stops34h 59m
Delta
Deal found 7/15![Delta logo]()
$865
This Delta deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/296:00 am
ONT
- BKK
2 stops25h 45m
Delta
Mon 9/289:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 7/16![Delta logo]()
$865
This China Airlines deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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.
Thu 9/2412:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Sun 10/410:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 7/13![China Airlines logo]()
$977
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/119:01 am
ONT
- BKK
2 stops24h 54m
United Airlines
Thu 9/177:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 7/14![United Airlines logo]()
$1,000
This China Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/2512:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Tue 9/221:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 7/16![China Airlines logo]()
$1,031
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 1/127:00 am
ONT
- BKK
2 stops23h 30m
Delta
Tue 2/212:55 am
BKK
- ONT
2 stops36h 48m
Delta
Deal found 7/13![Delta logo]()
$947
This United Airlines deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/68:03 am
ONT
- BKK
2 stops25h 52m
United Airlines
Tue 10/209:35 am
BKK
- ONT
2 stops24h 56m
United Airlines
Deal found 7/14![United Airlines logo]()
$1,054
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 9/3012:10 am
ONT
- DMK
1 stop34h 05m
Multiple Airlines
Thu 10/156:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$1,234
This China Airlines deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/3012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Thu 9/31:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 7/16![China Airlines logo]()
$1,031
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/1912:10 am
ONT
- DMK
1 stop26h 30m
Multiple Airlines
Tue 11/177:45 am
DMK
- ONT
1 stop24h 20m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,241
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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.
Tue 8/2512:45 am
ONT
- DMK
1 stop30h 35m
Multiple Airlines
Tue 9/159:30 pm
DMK
- ONT
2 stops33h 35m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,252
This Kiwi.com deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 10/711:30 pm
ONT
- DMK
1 stop31h 50m
Multiple Airlines
Sun 10/1811:00 pm
DMK
- ONT
2 stops33h 00m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,279
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 11/3010:50 pm
ONT
- DMK
1 stop23h 45m
Multiple Airlines
Tue 1/197:45 am
DMK
- ONT
1 stop24h 20m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,317
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 1/610:50 pm
ONT
- DMK
1 stop23h 45m
Multiple Airlines
Thu 1/217:45 am
DMK
- ONT
1 stop24h 20m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$1,333
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 1/69:45 pm
ONT
- DMK
1 stop24h 50m
Multiple Airlines
Wed 1/207:45 am
DMK
- ONT
1 stop23h 10m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$1,340
This Mytrip deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 8/212:45 am
ONT
- DMK
2 stops31h 20m
Multiple Airlines
Wed 8/129:20 am
DMK
- ONT
2 stops23h 20m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,355
This Kiwi.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 1/49:45 pm
ONT
- DMK
1 stop24h 50m
Multiple Airlines
Fri 1/226:15 am
DMK
- ONT
1 stop24h 40m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$1,419
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated July 17, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated July 17, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 7/296:20 am
ONT
- BKK
2 stops28h 45m
Korean Air
Wed 8/511:30 pm
BKK
- ONT
2 stops37h 15m
Korean Air
Deal found 7/15![Korean Air logo]()
$894
This Delta deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/36:00 am
ONT
- BKK
2 stops29h 05m
Delta
Wed 8/262:35 am
BKK
- ONT
2 stops34h 10m
Delta
Deal found 7/15![Delta logo]()
$821
This Jetabroad deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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.
Tue 8/46:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Tue 9/111:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 7/12![Korean Air logo]()
$811
This Kissandfly.com deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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.
Sat 8/83:35 pm
ONT
- BKK
2 stops40h 10m
Multiple Airlines
Sun 8/239:40 pm
BKK
- ONT
2 stops39h 05m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$850
This Jetabroad deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/106:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Tue 8/2511:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 7/16![Korean Air logo]()
$810
This Korean Air deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 8/116:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Tue 8/259:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 7/14![Korean Air logo]()
$827
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/186:00 am
ONT
- BKK
2 stops27h 35m
Delta
Sat 8/292:35 am
BKK
- ONT
2 stops34h 59m
Delta
Deal found 7/13![Delta logo]()
$864
This Mytrip deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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 8/1912:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Sat 8/296:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,067
This Korean Air deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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 8/256:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 9/232:35 am
BKK
- ONT
2 stops28h 45m
Korean Air
Deal found 7/15![Korean Air logo]()
$826
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 stops25h 45m
Delta
Mon 9/142:35 am
BKK
- ONT
2 stops35h 12m
Delta
Deal found 7/13![Delta logo]()
$820
This Korean Air deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/266:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Sat 9/129:40 pm
BKK
- ONT
2 stops33h 40m
Korean Air
Deal found 7/16![Korean Air logo]()
$870
This Bravofly deal was found by Cheapflights users on 7/15. Clicking the “Pick Dates” 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.
Sun 8/306:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Sun 9/69:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 7/15![Korean Air logo]()
$797
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 17, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated July 17, 2026.
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 11/97:00 am
ONT
- BKK
2 stops26h 45m
Delta
Deal found 7/13![Delta logo]()
$420
This Korean Air deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 11/127:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 7/13![Korean Air logo]()
$422
This Korean Air deal was found by Cheapflights users on 7/14. Clicking the “Pick Dates” 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 7/14![Korean Air logo]()
$423
This Korean Air deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 11/36:20 am
ONT
- BKK
2 stops24h 10m
Korean Air
Deal found 7/13![Korean Air logo]()
$424
This Kissandfly.com deal was found by Cheapflights users on 7/12. Clicking the “Pick Dates” 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.
Sat 11/76:20 am
ONT
- BKK
2 stops24h 10m
Korean Air
Deal found 7/12![Korean Air logo]()
$427
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 8/216:20 am
ONT
- BKK
2 stops27h 15m
Delta
Deal found 7/13![Delta logo]()
$428
This Korean Air deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/86:20 am
ONT
- BKK
2 stops27h 25m
Korean Air
Deal found 7/13![Korean Air logo]()
$430
This WhyPayMore deal was found by Cheapflights users on 7/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/296:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 7/11![Korean Air logo]()
$436
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 7/211:00 pm
ONT
- BKK
2 stops42h 45m
Delta
Deal found 7/13![Delta logo]()
$439
This Delta deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 stops41h 15m
Delta
Deal found 7/13![Delta logo]()
$453
This Kiwi.com deal was found by Cheapflights users on 7/13. Clicking the “Pick Dates” 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 8/298:48 am
ONT
- DMK
3 stops51h 12m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$482
This Kiwi.com deal was found by Cheapflights users on 7/16. Clicking the “Pick Dates” 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 8/158:58 am
ONT
- DMK
3 stops51h 02m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$485
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 17, 2026.
Round-trip from | $797 (Bravofly) |
|---|---|
One-way from | $420 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $1,095 |
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 17, 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-11:35 pm
2 stops27h 35m
Bangkok Suvarnabhumi
Wed 9/9
9:40 pm-10:04 pm
2 stops38h 24m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 8/18
6:00 am-11:35 pm
2 stops27h 35m
Bangkok Suvarnabhumi
Sat 8/29
2:35 am-11:34 pm
2 stops34h 59m
$865
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 8/29
6:00 am-9:45 pm
2 stops25h 45m
Bangkok Suvarnabhumi
Mon 9/28
9:50 am-10:40 pm
2 stops26h 50m
$865
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 1/12
7:00 am-9:30 pm
2 stops23h 30m
Bangkok Suvarnabhumi
Tue 2/2
12:55 am-10:43 pm
2 stops36h 48m
$947
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 9/14
12:45 am-12:10 pm
1 stop21h 25m
Bangkok Suvarnabhumi
Tue 9/22
5:30 pm-6:00 pm
1 stop38h 30m
$977
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 9/24
12:10 am-4:20 pm
1 stop26h 10m
Bangkok Suvarnabhumi
Sun 10/4
10:50 am-6:00 pm
1 stop21h 10m
$977
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 8/28
5:00 am-11:55 pm
2 stops28h 55m
Bangkok Suvarnabhumi
Wed 9/9
9:35 am-8:01 pm
2 stops24h 26m
$980
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 9/11
9:01 am-11:55 pm
2 stops24h 54m
Bangkok Suvarnabhumi
Thu 9/17
7:00 am-6:11 pm
2 stops25h 11m
$1,000
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 8/25
12:45 am-9:45 am
1 stop19h 00m
Bangkok Suvarnabhumi
Tue 9/22
1:20 pm-6:00 pm
1 stop18h 40m
$1,031
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 8/30
12:45 am-9:45 am
1 stop19h 00m
Bangkok Suvarnabhumi
Thu 9/3
1:20 pm-6:40 pm
1 stop19h 20m
$1,031
Showing 1-10 of 42 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, July is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $457). Flying from Ontario to Bangkok in December is currently the most expensive (average of $732). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Bangkok?
How far ahead should I book a flight from Ontario to Bangkok?
Booking 80 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 17, 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
8.6
Overall
8.8
Boarding
8.9
Crew
9.1
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Comfort
8.9
Food
8.6
Overall
8.8
Boarding
8.9
Crew
9.1
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Comfort
8.9
Food
8.6
Overall
8.8
Boarding
8.9
Crew
9.1
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Comfort
8.9
Food
8.6
Overall
8.8
Boarding
8.9
Crew
9.1
Entertainment
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Comfort
8.9
Food
8.6
Overall
8.8
Boarding
8.9
Crew
9.1
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 17, 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 17, 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 17, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$668 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$826 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$856 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$829 | FlexibilityNo cancel fee | On-timeN/A |