$402+ 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 11/24. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Sep 12 — Sep 191
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Bangkok with Cheapflights
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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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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 August 13, 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 August 13, 2026.
This SmartFares deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:30 pm -
1 stop22h 30m
Wed 11/41:45 pm -
1 stop17h 10m
Deal found 8/8![STARLUX Airlines logo]()
$759
This SmartFares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:55 pm -
1 stop22h 05m
Sat 9/51:10 pm -
1 stop17h 55m
Deal found 8/10![STARLUX Airlines logo]()
$760
This SmartFares deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/49:45 pm -
1 stop23h 50m
Wed 11/181:45 pm -
1 stop17h 10m
Deal found 8/7![STARLUX Airlines logo]()
$762
This oojo deal was found by Cheapflights users on 8/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:45 pm -
1 stop27h 45m
Mon 11/91:45 pm -
1 stop17h 10m
Deal found 8/11![STARLUX Airlines logo]()
$775
This oojo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:45 pm -
1 stop27h 45m
Tue 12/155:40 pm -
1 stop37h 15m
Deal found 8/10![STARLUX Airlines logo]()
$776
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:55 pm -
1 stop26h 45m
Sun 9/205:50 pm -
1 stop37h 15m
Deal found 8/12![STARLUX Airlines logo]()
$777
This oojo deal was found by Cheapflights users on 8/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1611:30 pm -
1 stop22h 30m
Tue 10/205:50 pm -
1 stop37h 15m
Deal found 8/11![STARLUX Airlines logo]()
$778
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop26h 45m
Mon 9/141:10 pm -
1 stop17h 55m
Deal found 8/11![STARLUX Airlines logo]()
$779
This lol.travel deal was found by Cheapflights users on 8/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:20 am -
2 stops25h 25m
Tue 9/19:40 pm -
2 stops39h 05m
Deal found 8/12![Korean Air logo]()
$786
This CheapTickets deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapTickets is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/119:45 pm -
1 stop23h 50m
Wed 11/181:45 pm -
1 stop17h 10m
Deal found 8/7![STARLUX Airlines logo]()
$787
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:30 pm -
1 stop27h 10m
Wed 10/71:10 pm -
1 stop17h 55m
Deal found 8/9![STARLUX Airlines logo]()
$788
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:55 pm -
1 stop22h 05m
Tue 9/15:50 pm -
1 stop37h 15m
Deal found 8/12![STARLUX Airlines logo]()
$792
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 August 13, 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 August 13, 2026.
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am -
2 stops41h 35m
Tue 9/159:40 pm -
2 stops40h 07m
Deal found 8/9![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:20 am -
2 stops26h 00m
Sun 11/159:40 am -
2 stops46h 33m
Deal found 8/9![Korean Air logo]()
$839
This China Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:45 am -
1 stop21h 25m
Sun 9/1310:50 am -
1 stop21h 50m
Deal found 8/7![China Airlines logo]()
$878
This Mytrip deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:45 am -
1 stop28h 45m
Sun 9/277:25 am -
1 stop24h 35m
Deal found 8/9![Multiple Airlines logo]()
$981
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
2 stops24h 30m
Wed 11/259:40 am -
2 stops22h 33m
Deal found 8/10![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:20 am -
2 stops27h 00m
Sun 11/89:40 am -
2 stops46h 33m
Deal found 8/10![Korean Air logo]()
$839
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/96:00 am -
2 stops24h 30m
Mon 11/239:40 am -
2 stops22h 33m
Deal found 8/10![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/11. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:20 am -
2 stops41h 05m
Sun 3/219:30 pm -
2 stops33h 47m
Deal found 8/11![Korean Air logo]()
$840
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/63:35 pm -
2 stops42h 00m
Sun 9/1311:30 pm -
2 stops37h 10m
Deal found 8/7![Delta logo]()
$827
This Mytrip deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:10 am -
1 stop26h 30m
Tue 10/206:15 am -
1 stop25h 45m
Deal found 8/10![Multiple Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:01 pm -
2 stops41h 04m
Sun 11/812:55 am -
2 stops31h 18m
Deal found 8/8![Delta logo]()
$827
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:45 am -
1 stop25h 55m
Thu 9/176:15 am -
1 stop25h 45m
Deal found 8/11![Multiple Airlines logo]()
$1,025
This Delta deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/76:20 am -
2 stops27h 25m
Sat 11/1412:55 am -
2 stops31h 18m
Deal found 8/9![Delta logo]()
$846
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 am -
2 stops32h 55m
Sun 10/47:30 am -
2 stops24h 30m
Deal found 8/11![Multiple Airlines logo]()
$1,039
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:10 am -
2 stops27h 25m
Thu 10/87:30 am -
2 stops24h 30m
Deal found 8/11![Multiple Airlines logo]()
$1,039
This Mytrip deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 am -
2 stops27h 25m
Wed 10/287:30 am -
2 stops24h 35m
Deal found 8/10![Multiple Airlines logo]()
$1,052
This Kiwi.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm -
1 stop27h 10m
Sat 9/196:15 am -
1 stop24h 50m
Deal found 8/7![Multiple Airlines logo]()
$1,071
This Mytrip deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/1612:10 am -
1 stop29h 20m
Sun 10/257:45 am -
1 stop24h 20m
Deal found 8/9![Multiple Airlines logo]()
$1,071
This Kiwi.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:30 pm -
1 stop27h 10m
Wed 9/166:15 am -
1 stop24h 50m
Deal found 8/9![Multiple Airlines logo]()
$1,074
This Mytrip deal was found by Cheapflights users on 8/11. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 am -
2 stops27h 25m
Wed 10/147:30 am -
2 stops24h 30m
Deal found 8/11![Multiple Airlines logo]()
$1,089
This Kiwi.com deal was found by Cheapflights users on 8/12. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/311:30 pm -
1 stop27h 10m
Sat 10/107:25 am -
1 stop23h 40m
Deal found 8/12![Multiple Airlines logo]()
$1,091
This Mytrip deal was found by Cheapflights users on 8/12. 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.
Fri 10/212:10 am -
1 stop29h 20m
Fri 10/97:25 am -
1 stop24h 35m
Deal found 8/12![Multiple Airlines logo]()
$1,115
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated August 13, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated August 13, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/12. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/1511:55 pm -
1 stop22h 05m
Mon 9/211:10 pm -
1 stop17h 55m
Deal found 8/12![STARLUX Airlines logo]()
$777
This SmartFares deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:55 pm -
1 stop22h 05m
Sat 9/51:10 pm -
1 stop17h 55m
Deal found 8/10![STARLUX Airlines logo]()
$760
This lol.travel deal was found by Cheapflights users on 8/12. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/286:20 am -
2 stops25h 25m
Tue 9/19:40 pm -
2 stops39h 05m
Deal found 8/12![Korean Air logo]()
$786
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:55 pm -
1 stop22h 05m
Tue 9/15:50 pm -
1 stop37h 15m
Deal found 8/12![STARLUX Airlines logo]()
$792
This Trip.com deal was found by Cheapflights users on 8/12. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:55 pm -
1 stop22h 05m
Thu 9/35:50 pm -
1 stop37h 15m
Deal found 8/12![STARLUX Airlines logo]()
$797
This FlightHub deal was found by Cheapflights users on 8/11. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop26h 45m
Wed 9/161:10 pm -
1 stop17h 55m
Deal found 8/11![STARLUX Airlines logo]()
$779
This oojo deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop22h 30m
Wed 9/91:10 pm -
1 stop17h 55m
Deal found 8/9![STARLUX Airlines logo]()
$778
This oojo deal was found by Cheapflights users on 8/11. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm -
1 stop27h 10m
Sat 9/191:10 pm -
1 stop17h 55m
Deal found 8/11![STARLUX Airlines logo]()
$775
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:30 pm -
1 stop27h 10m
Wed 10/71:10 pm -
1 stop17h 55m
Deal found 8/9![STARLUX Airlines logo]()
$788
This Kissandfly.com deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:45 am -
1 stop19h 00m
Sun 9/2710:50 am -
1 stop21h 10m
Deal found 8/9![China Airlines logo]()
$804
This Gotogate deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 pm -
1 stop27h 10m
Wed 9/301:10 pm -
1 stop17h 55m
Deal found 8/10![STARLUX Airlines logo]()
$794
This SmartFares deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:30 pm -
1 stop22h 30m
Wed 11/41:45 pm -
1 stop17h 10m
Deal found 8/8![STARLUX Airlines logo]()
$759
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 August 13, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated August 13, 2026.
This SmartFares deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/247:04 am -
2 stops23h 26m
Deal found 8/9![Korean Air logo]()
$402
This Kissandfly.com deal was found by Cheapflights users on 8/12. 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.
Mon 11/26:20 am -
2 stops24h 10m
Deal found 8/12![Korean Air logo]()
$408
This Kissandfly.com deal was found by Cheapflights users on 8/12. 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.
Mon 11/29:45 pm -
1 stop27h 45m
Deal found 8/12![STARLUX Airlines logo]()
$410
This Mytrip deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:30 pm -
1 stop22h 30m
Deal found 8/9![STARLUX Airlines logo]()
$411
This SmartFares deal was found by Cheapflights users on 8/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop22h 30m
Deal found 8/11![STARLUX Airlines logo]()
$412
This oojo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm -
1 stop27h 10m
Deal found 8/10![STARLUX Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 8/12. 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.
Wed 8/266:20 am -
2 stops27h 15m
Deal found 8/12![Delta logo]()
$414
This Korean Air deal was found by Cheapflights users on 8/12. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/136:20 am -
2 stops28h 45m
Deal found 8/12![Korean Air logo]()
$417
This Trip.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:55 pm -
1 stop26h 45m
Deal found 8/10![STARLUX Airlines logo]()
$418
This Korean Air deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/207:00 am -
2 stops23h 30m
Deal found 8/8![Korean Air logo]()
$419
This SmartFares deal was found by Cheapflights users on 8/11. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am -
1 stop19h 00m
Deal found 8/11![China Airlines logo]()
$420
This Mytrip deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
2 stops32h 55m
Deal found 8/8![Multiple Airlines logo]()
$507
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 August 13, 2026.
Round-trip from | $759 (SmartFares) |
|---|---|
One-way from | $402 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $955 |
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 August 13, 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 Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Wed 9/9
6:00 am-1:35 pm
2 stops41h 35m
Bangkok Suvarnabhumi
Tue 9/15
9:40 pm-11:47 pm
2 stops40h 07m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Mon 11/9
6:00 am-9:30 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Wed 11/25
9:40 am-5:13 pm
2 stops22h 33m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Mon 11/9
6:00 am-9:30 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Mon 11/23
9:40 am-5:13 pm
2 stops22h 33m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 9/6
3:35 pm-11:35 pm
2 stops42h 00m
Bangkok Suvarnabhumi
Sun 9/13
11:30 pm-10:40 pm
2 stops37h 10m
$827
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 10/18
6:01 pm-1:05 am
2 stops41h 04m
Bangkok Suvarnabhumi
Sun 11/8
12:55 am-5:13 pm
2 stops31h 18m
$827
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 11/7
6:20 am-11:20 pm
2 stops26h 00m
Bangkok Suvarnabhumi
Sun 11/15
9:40 am-5:13 pm
2 stops46h 33m
$839
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 10/31
6:20 am-11:20 pm
2 stops27h 00m
Bangkok Suvarnabhumi
Sun 11/8
9:40 am-5:13 pm
2 stops46h 33m
$839
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 10/25
6:20 am-1:25 pm
2 stops41h 05m
Bangkok Suvarnabhumi
Sun 3/21
9:30 pm-5:17 pm
2 stops33h 47m
$840
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 11/7
6:20 am-12:45 am
2 stops27h 25m
Bangkok Suvarnabhumi
Sat 11/14
12:55 am-5:13 pm
2 stops31h 18m
$846
Quickest round-trip
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 9/6
12:45 am-12:10 pm
1 stop21h 25m
Bangkok Suvarnabhumi
Sun 9/13
10:50 am-6:40 pm
1 stop21h 50m
$878
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, January is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $765). 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 $999 in September.The cheapest round-trip price found within the last 5 days was $759 on STARLUX Airlines (Sep 28-Nov 4).
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 August 13, 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
8.8
Overall
8.7
Entertainment
8.7
Crew
9.1
Boarding
8.8
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Overall
8.7
Entertainment
8.7
Crew
9.1
Boarding
8.8
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Overall
8.7
Entertainment
8.7
Crew
9.1
Boarding
8.8
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Overall
8.7
Entertainment
8.7
Crew
9.1
Boarding
8.8
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Overall
8.7
Entertainment
8.7
Crew
9.1
Boarding
8.8
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
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.
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Alternative routes for Ontario to Bangkok
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Complete your trip
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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 August 13, 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 August 13, 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 August 13, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$455 | Average$813 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$876 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$756 | Average$838 | FlexibilityNo cancel fee | On-timeN/A |