$420+ Cheap flights from Ontario (ONT) to Thailand
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 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Aug 14 — Aug 211
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Thailand with Cheapflights
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Cheapest flights from Ontario to ThailandExplore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 15, 2026.
Explore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 15, 2026.
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.
Wed 9/306:20 am
ONT
- BKK
2 stops25h 25m
Delta
Thu 10/229:50 am
BKK
- ONT
2 stops26h 53m
Delta
Deal found 7/13![Delta logo]()
$820
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:00 am
ONT
- BKK
2 stops24h 30m
Delta
Mon 1/259:40 am
BKK
- ONT
2 stops28h 03m
Delta
Deal found 7/14![Delta logo]()
$821
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 11/56:20 am
ONT
- BKK
2 stops40h 05m
Korean Air
Wed 11/2512:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 7/13![Korean Air logo]()
$826
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:00 am
ONT
- CNX
2 stops24h 55m
Korean Air
Tue 12/112:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 7/12![Korean Air logo]()
$826
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 11/167:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 12/19:30 pm
BKK
- ONT
2 stops34h 47m
Korean Air
Deal found 7/14![Korean Air logo]()
$827
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/15:52 pm
ONT
- BKK
2 stops60h 38m
Delta
Mon 11/169:40 am
BKK
- ONT
2 stops40h 36m
Delta
Deal found 7/11![Delta logo]()
$832
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 12/297:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 1/2611:15 pm
BKK
- ONT
2 stops29h 42m
Korean Air
Deal found 7/13![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.
Fri 11/66:20 am
ONT
- BKK
2 stops27h 25m
Delta
Thu 11/269:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 7/13![Delta logo]()
$864
Best flights from Ontario to ThailandDiscover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 15, 2026.
Discover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 15, 2026.
This Delta deal was found by Cheapflights users on 7/10. 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.
Wed 9/306:20 am
ONT
- BKK
2 stops25h 25m
Delta
Wed 10/79:50 am
BKK
- ONT
2 stops21h 22m
Delta
Deal found 7/10![Delta logo]()
$820
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 11/156:00 am
ONT
- CNX
2 stops25h 55m
Korean Air
Wed 12/212:15 am
CNX
- ONT
2 stops30h 57m
Korean Air
Deal found 7/13![Korean Air logo]()
$920
This United 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/276:08 am
ONT
- BKK
2 stops32h 27m
United Airlines
Thu 9/37:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 7/13![United Airlines logo]()
$946
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 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.
Sat 10/1012:10 am
ONT
- DMK
1 stop26h 30m
Multiple Airlines
Sat 10/176:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 7/12![Multiple Airlines logo]()
$1,078
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/46:00 am
ONT
- BKK
2 stops26h 20m
Delta
Tue 1/1911:15 pm
BKK
- ONT
2 stops38h 28m
Delta
Deal found 7/14![Delta logo]()
$898
This United Airlines deal was found by Cheapflights users on 7/10. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/305:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Wed 10/77:00 am
BKK
- ONT
2 stops22h 22m
United Airlines
Deal found 7/10![United Airlines logo]()
$949
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 8/316:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Fri 9/411:25 pm
HKT
- ONT
2 stops37h 20m
Korean Air
Deal found 7/13![Korean Air logo]()
$970
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.
Tue 8/2512:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Mon 9/142:40 am
BKK
- ONT
1 stop30h 00m
China Airlines
Deal found 7/13![China Airlines logo]()
$977
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 11/176:00 am
ONT
- BKK
2 stops40h 25m
Delta
Fri 12/49:30 pm
BKK
- ONT
2 stops40h 13m
Delta
Deal found 7/13![Delta logo]()
$904
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 8/316:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Thu 9/311:25 pm
HKT
- ONT
2 stops37h 20m
Korean Air
Deal found 7/14![Korean Air logo]()
$971
This China Airlines 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/2712:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Thu 9/32:40 am
BKK
- ONT
1 stop30h 00m
China Airlines
Deal found 7/11![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 FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:45 am
ONT
- CNX
2 stops23h 30m
Multiple Airlines
Mon 9/1411:20 am
CNX
- ONT
1 stop21h 20m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,102
This Delta deal was found by Cheapflights users on 7/10. 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.
Fri 9/256:20 am
ONT
- BKK
2 stops25h 25m
Delta
Sun 10/411:30 pm
BKK
- ONT
2 stops37h 10m
Delta
Deal found 7/10![Delta logo]()
$914
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 8/186:20 am
ONT
- HKT
2 stops25h 50m
Delta
Tue 8/2511:25 pm
HKT
- ONT
2 stops38h 09m
Delta
Deal found 7/15![Delta logo]()
$921
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Wed 9/2311:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 7/13![China Airlines logo]()
$1,034
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 11/187:00 am
ONT
- HKT
2 stops24h 10m
Korean Air
Sun 11/2911:40 pm
HKT
- ONT
2 stops32h 37m
Korean Air
Deal found 7/15![Korean Air logo]()
$1,046
This FlightHub 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:10 am
ONT
- KBV
2 stops42h 35m
Multiple Airlines
Wed 9/309:25 am
KBV
- ONT
2 stops46h 35m
Multiple Airlines
Deal found 7/13![Multiple Airlines logo]()
$1,154
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 China 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:50 pm
ONT
- BKK
1 stop20h 00m
China Airlines
Fri 12/112:35 am
BKK
- ONT
1 stop29h 30m
China Airlines
Deal found 7/14![China Airlines logo]()
$1,074
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.
Thu 9/38:48 am
ONT
- DMK
2 stops39h 12m
Multiple Airlines
Wed 9/306:15 am
DMK
- ONT
1 stop24h 50m
Multiple Airlines
Deal found 7/14![Multiple Airlines logo]()
$1,182
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
- HKT
2 stops25h 50m
Delta
Thu 9/1711:25 pm
HKT
- ONT
2 stops37h 15m
Delta
Deal found 7/13![Delta logo]()
$1,058
This China Airlines 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2810:50 pm
ONT
- CNX
1 stop20h 35m
Multiple Airlines
Tue 12/810:10 am
CNX
- ONT
2 stops21h 55m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$1,189
This Korean Air 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/87:00 am
ONT
- HKT
2 stops24h 10m
Korean Air
Wed 1/2011:40 pm
HKT
- ONT
2 stops29h 17m
Korean Air
Deal found 7/12![Korean Air logo]()
$1,200
This China Airlines 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 am
ONT
- CNX
1 stop20h 10m
China Airlines
Thu 10/2211:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 7/11![China Airlines logo]()
$1,104
This Mytrip 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Sat 8/226:15 am
DMK
- ONT
1 stop25h 25m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$1,206
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.
Thu 11/197:00 am
ONT
- CNX
2 stops24h 55m
Korean Air
Mon 11/3012:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 7/14![Korean Air logo]()
$1,219
This China Airlines 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/2312:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 8/3110:10 am
CNX
- ONT
2 stops22h 30m
China Airlines
Deal found 7/12![China Airlines logo]()
$1,177
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
Last-minute flights from Ontario to ThailandDiscover last-minute flight deals from Ontario to Thailand. Data last updated July 15, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Thailand. Data last updated July 15, 2026 and is based on user searches.
This Delta 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:01 pm
ONT
- BKK
2 stops41h 04m
Delta
Wed 7/222:35 am
BKK
- ONT
2 stops44h 12m
Delta
Deal found 7/11![Delta logo]()
$924
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 Kissandfly.com 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/96:01 pm
ONT
- BKK
2 stops39h 34m
Multiple Airlines
Tue 8/259:50 am
BKK
- ONT
2 stops26h 55m
Multiple Airlines
Deal found 7/11![Multiple Airlines logo]()
$881
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 7/15. 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.
Fri 8/146:20 am
ONT
- BKK
2 stops28h 45m
Delta
Fri 8/282:35 am
BKK
- ONT
2 stops33h 48m
Delta
Deal found 7/15![Delta logo]()
$909
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 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 8/186:20 am
ONT
- HKT
2 stops25h 50m
Delta
Tue 8/2511:25 pm
HKT
- ONT
2 stops38h 09m
Delta
Deal found 7/15![Delta logo]()
$921
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 8/256:00 am
ONT
- BKK
2 stops25h 45m
Delta
Tue 9/159:40 pm
BKK
- ONT
2 stops40h 07m
Delta
Deal found 7/12![Delta logo]()
$820
This Korean Air 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 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 7/12![Korean Air logo]()
$826
One-way flights from Ontario to ThailandSearch for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated July 15, 2026.
Search for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated July 15, 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.
Tue 11/107:00 am
ONT
- BKK
2 stops25h 20m
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.
Sat 8/296:00 am
ONT
- BKK
2 stops25h 45m
Delta
Deal found 7/13![Delta logo]()
$428
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.
Fri 8/286:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 7/15![Korean Air logo]()
$431
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 SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:20 am
ONT
- HKT
2 stops24h 50m
Korean Air
Deal found 7/11![Korean Air logo]()
$443
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 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 11/36:00 am
ONT
- HKT
2 stops25h 10m
Delta
Deal found 7/13![Delta logo]()
$470
Find flight deals from Ontario to Thailand
Keep the following information in mind while searching for Ontario to Thailand flight deals. Data was last updated July 15, 2026.
Round-trip from | $797 (Bravofly) |
|---|---|
One-way from | $420 (Delta) |
Popular in | December |
Cheapest in | March |
Average price | $903 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Thailand 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 15, 2026.
Use the filters below to find and compare flights from Ontario to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/30
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Wed 10/7
9:50 am-5:12 pm
2 stops21h 22m
$820
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 1/4
6:00 am-11:20 pm
2 stops26h 20m
Bangkok Suvarnabhumi
Tue 1/19
11:15 pm-10:43 pm
2 stops38h 28m
$898
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 11/17
6:00 am-1:25 pm
2 stops40h 25m
Bangkok Suvarnabhumi
Fri 12/4
9:30 pm-10:43 pm
2 stops40h 13m
$904
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 9/25
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Sun 10/4
11:30 pm-10:40 pm
2 stops37h 10m
$914
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Sun 11/15
6:00 am-10:55 pm
2 stops25h 55m
Chiang Mai
Wed 12/2
12:15 am-4:12 pm
2 stops30h 57m
$920
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Tue 8/18
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Tue 8/25
11:25 pm-11:34 pm
2 stops38h 09m
$921
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 8/27
6:08 am-4:35 am
2 stops32h 27m
Bangkok Suvarnabhumi
Thu 9/3
7:00 am-6:11 pm
2 stops25h 11m
$946
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/30
5:00 am-11:55 pm
2 stops28h 55m
Bangkok Suvarnabhumi
Wed 10/7
7:00 am-3:22 pm
2 stops22h 22m
$949
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Mon 8/31
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Fri 9/4
11:25 pm-10:45 pm
2 stops37h 20m
$970
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Mon 8/31
6:20 am-10:10 pm
2 stops25h 50m
Phuket City
Thu 9/3
11:25 pm-10:45 pm
2 stops37h 20m
$971
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from Ontario with our price prediction graph.
ONT-BKK
ONT-HKT
ONT-CNX
ONT-DMK
ONT-KBV
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 Thailand
ONT-TH0
ONT-BKK
ONT-HKT
ONT-CNX
ONT-DMK
What is the cheapest month to book a flight from Ontario to Thailand?
Currently, July is the cheapest month in which you can book a flight from Ontario to Thailand (average of $457). Flying from Ontario to Thailand 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 far ahead should I book a flight from Ontario to Thailand?
The best time to book flights from Ontario to Thailand is 80 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated July 15, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Crew
9.1
Comfort
8.9
Entertainment
8.7
Boarding
8.9
Overall
8.8
Food
8.6
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Comfort
8.9
Entertainment
8.7
Boarding
8.9
Overall
8.8
Food
8.6
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Comfort
8.9
Entertainment
8.7
Boarding
8.9
Overall
8.8
Food
8.6
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Comfort
8.9
Entertainment
8.7
Boarding
8.9
Overall
8.8
Food
8.6
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Crew
9.1
Comfort
8.9
Entertainment
8.7
Boarding
8.9
Overall
8.8
Food
8.6
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 Thailand. 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.
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Alternative routes for Ontario to Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Thailand by cabin class
Find flights from Ontario to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Thailand flights
Browse other Ontario and Thailand flight options. Last updated on July 15, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Thailand flights
Consider these flights traveling from Ontario to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 4 airlines flying from Ontario to Thailand
Discover the top 4 airlines that operate flights from Ontario to Thailand. 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 15, 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$1,192 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$829 | FlexibilityNo cancel fee | On-timeN/A |