$432+ 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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jul 16 — Jul 231
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Thailand 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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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 June 16, 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 June 16, 2026.
This SmartFares deal was found by Cheapflights users on 6/14. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/27:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 11/1711:15 pm
BKK
- ONT
2 stops33h 02m
Korean Air
Deal found 6/14![Korean Air logo]()
$854
This Delta deal was found by Cheapflights users on 6/11. 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.
Mon 10/127:00 am
ONT
- BKK
2 stops24h 45m
Delta
Tue 10/279:40 am
BKK
- ONT
2 stops21h 37m
Delta
Deal found 6/11![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Mon 11/167:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 4/611:30 pm
BKK
- ONT
2 stops31h 47m
Korean Air
Deal found 6/11![Korean Air logo]()
$895
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Thu 10/297:00 am
ONT
- CNX
2 stops25h 55m
Korean Air
Sun 11/112:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 6/11![Korean Air logo]()
$895
This Delta deal was found by Cheapflights users on 6/12. 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.
Sun 11/85:50 pm
ONT
- BKK
2 stops60h 40m
Delta
Wed 11/189:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 6/12![Delta logo]()
$896
This Delta deal was found by Cheapflights users on 6/12. 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.
Sun 11/811:55 am
ONT
- BKK
2 stops66h 35m
Delta
Sun 11/1512:55 am
BKK
- ONT
2 stops50h 35m
Delta
Deal found 6/12![Delta logo]()
$901
This Delta deal was found by Cheapflights users on 6/15. 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 11/176:00 am
ONT
- BKK
2 stops24h 30m
Delta
Tue 12/159:30 pm
BKK
- ONT
2 stops40h 13m
Delta
Deal found 6/15![Delta logo]()
$906
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Mon 11/167:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 5/29:40 pm
BKK
- ONT
2 stops33h 37m
Korean Air
Deal found 6/11![Korean Air logo]()
$912
This Delta deal was found by Cheapflights users on 6/13. 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 7/316:20 am
ONT
- BKK
2 stops28h 45m
Delta
Thu 8/279:50 am
BKK
- ONT
2 stops27h 44m
Delta
Deal found 6/13![Delta logo]()
$920
This Delta deal was found by Cheapflights users on 6/13. 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 8/15:10 pm
ONT
- BKK
2 stops38h 35m
Delta
Wed 8/269:50 am
BKK
- ONT
2 stops27h 44m
Delta
Deal found 6/13![Delta logo]()
$926
This Delta deal was found by Cheapflights users on 6/12. 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.
Sun 11/85:50 pm
ONT
- BKK
2 stops60h 40m
Delta
Thu 11/129:30 pm
BKK
- ONT
2 stops33h 42m
Delta
Deal found 6/12![Delta logo]()
$927
This Delta deal was found by Cheapflights users on 6/11. 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 11/156:00 am
ONT
- BKK
2 stops24h 30m
Delta
Thu 5/69:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 6/11![Delta logo]()
$937
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 June 16, 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 June 16, 2026.
This Delta deal was found by Cheapflights users on 6/14. 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 9/16:00 am
ONT
- BKK
2 stops29h 05m
Delta
Thu 10/19:50 am
BKK
- ONT
2 stops21h 30m
Delta
Deal found 6/14![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/14. 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 10/297:00 am
ONT
- CNX
2 stops25h 55m
Korean Air
Sun 11/112:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 6/14![Korean Air logo]()
$895
This United Airlines deal was found by Cheapflights users on 6/14. 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 8/189:01 am
ONT
- BKK
2 stops24h 54m
United Airlines
Tue 9/227:00 am
BKK
- ONT
2 stops21h 01m
United Airlines
Deal found 6/14![United Airlines logo]()
$1,000
This China Airlines deal was found by Cheapflights users on 6/14. 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.
Sun 8/2312:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Sat 11/212:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 6/14![China Airlines logo]()
$1,023
This Mytrip deal was found by Cheapflights users on 6/13. 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.
Fri 10/912:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Sun 10/186:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,250
This Delta deal was found by Cheapflights users on 6/12. 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.
Sun 10/185:05 pm
ONT
- BKK
2 stops42h 00m
Delta
Mon 11/99:30 pm
BKK
- ONT
2 stops40h 13m
Delta
Deal found 6/12![Delta logo]()
$895
This Korean Air deal was found by Cheapflights users on 6/12. 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.
Sun 12/67:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Mon 1/1811:15 pm
BKK
- ONT
2 stops29h 42m
Korean Air
Deal found 6/12![Korean Air logo]()
$976
This Delta deal was found by Cheapflights users on 6/11. 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 10/255:50 pm
ONT
- BKK
2 stops40h 55m
Delta
Sun 11/89:40 am
BKK
- ONT
2 stops29h 08m
Delta
Deal found 6/11![Delta logo]()
$926
This United Airlines deal was found by Cheapflights users on 6/13. 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.
Wed 11/186:00 am
ONT
- BKK
2 stops38h 25m
United Airlines
Mon 11/304:55 pm
BKK
- ONT
2 stops34h 25m
United Airlines
Deal found 6/13![United Airlines logo]()
$1,022
This China Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 8/2312:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Tue 9/1511:20 am
CNX
- ONT
1 stop21h 20m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,091
This Korean Air deal was found by Cheapflights users on 6/13. 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 10/227:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Mon 10/2611:40 pm
HKT
- ONT
2 stops31h 37m
Korean Air
Deal found 6/13![Korean Air logo]()
$995
This United Airlines deal was found by Cheapflights users on 6/15. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:13 pm
ONT
- BKK
2 stops24h 22m
United Airlines
Wed 9/169:35 am
BKK
- ONT
2 stops24h 26m
United Airlines
Deal found 6/15![United Airlines logo]()
$1,035
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 9/156:20 am
ONT
- BKK
2 stops25h 25m
Delta
Mon 12/79:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 6/11![Delta logo]()
$978
This China Airlines deal was found by Cheapflights users on 6/15. 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.
Mon 8/2412:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Thu 9/1711:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,091
This Korean Air deal was found by Cheapflights users on 6/12. 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 12/77:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 1/1711:15 pm
BKK
- ONT
2 stops38h 28m
Korean Air
Deal found 6/12![Korean Air logo]()
$1,026
This United Airlines deal was found by Cheapflights users on 6/12. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/76:00 am
ONT
- BKK
2 stops27h 20m
United Airlines
Mon 1/257:10 am
BKK
- ONT
2 stops23h 17m
United Airlines
Deal found 6/12![United Airlines logo]()
$1,062
This Delta deal was found by Cheapflights users on 6/14. 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 10/137:00 am
ONT
- HKT
2 stops25h 10m
Delta
Wed 10/2811:40 pm
HKT
- ONT
2 stops31h 37m
Delta
Deal found 6/14![Delta logo]()
$989
This China Airlines deal was found by Cheapflights users on 6/15. 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.
Sun 8/2312:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Sat 9/1911:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,091
This Kiwi.com deal was found by Cheapflights users on 6/13. 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 8/811:55 pm
ONT
- DMK
1 stop34h 20m
Multiple Airlines
Sun 8/2311:00 pm
DMK
- ONT
2 stops32h 40m
Multiple Airlines
Deal found 6/13![Multiple Airlines logo]()
$1,354
This Korean Air deal was found by Cheapflights users on 6/14. 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 10/157:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Thu 10/2911:40 pm
HKT
- ONT
2 stops31h 37m
Korean Air
Deal found 6/14![Korean Air logo]()
$1,026
This Delta deal was found by Cheapflights users on 6/14. 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.
Wed 10/147:00 am
ONT
- HKT
2 stops25h 10m
Delta
Mon 10/2611:40 pm
HKT
- ONT
2 stops31h 37m
Delta
Deal found 6/14![Delta logo]()
$989
This China Airlines deal was found by Cheapflights users on 6/15. 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.
Mon 8/2412:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 9/2111:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,091
This Korean Air deal was found by Cheapflights users on 6/14. 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 10/127:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Thu 10/2911:40 pm
HKT
- ONT
2 stops31h 37m
Korean Air
Deal found 6/14![Korean Air logo]()
$1,026
This Mytrip deal was found by Cheapflights users on 6/12. 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.
Sun 9/2712:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Tue 10/66:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,438
This Delta deal was found by Cheapflights users on 6/14. 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.
Thu 10/156:00 am
ONT
- HKT
2 stops26h 10m
Delta
Wed 10/2811:40 pm
HKT
- ONT
2 stops31h 37m
Delta
Deal found 6/14![Delta logo]()
$989
This China Airlines deal was found by Cheapflights users on 6/15. 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 8/2212:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 9/2111:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,091
This Mytrip deal was found by Cheapflights users on 6/11. 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 10/1512:10 am
ONT
- DMK
2 stops23h 30m
Multiple Airlines
Sat 10/247:25 am
DMK
- ONT
1 stop23h 40m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$1,448
This China Airlines deal was found by Cheapflights users on 6/15. 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.
Tue 8/1812:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Mon 9/2111:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/15![China Airlines logo]()
$1,117
This Delta deal was found by Cheapflights users on 6/15. 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 11/26:00 am
ONT
- HKT
2 stops25h 10m
Delta
Fri 11/1311:40 pm
HKT
- ONT
2 stops39h 08m
Delta
Deal found 6/15![Delta logo]()
$1,020
This China Airlines deal was found by Cheapflights users on 6/14. 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.
Thu 10/2911:50 pm
ONT
- CNX
1 stop20h 35m
China Airlines
Mon 11/211:25 am
CNX
- ONT
1 stop20h 25m
China Airlines
Deal found 6/14![China Airlines logo]()
$1,117
Last-minute flights from Ontario to ThailandDiscover last-minute flight deals from Ontario to Thailand. Data last updated June 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Thailand. Data last updated June 16, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Sat 7/116:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Wed 7/292:35 am
BKK
- ONT
2 stops34h 17m
Korean Air
Deal found 6/11![Korean Air logo]()
$1,007
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Sat 7/116:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Tue 7/2811:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 6/11![Korean Air logo]()
$1,015
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Mon 7/136:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Thu 7/232:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 6/11![Korean Air logo]()
$1,001
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Tue 7/146:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 7/292:35 am
BKK
- ONT
2 stops34h 17m
Korean Air
Deal found 6/11![Korean Air logo]()
$976
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Tue 7/146:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Tue 7/289:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 6/11![Korean Air logo]()
$984
This Expedia deal was found by Cheapflights users on 6/15. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 7/166:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 7/222:35 am
BKK
- ONT
2 stops34h 17m
Korean Air
Deal found 6/15![Korean Air logo]()
$895
This SmartFares deal was found by Cheapflights users on 6/15. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/246:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Mon 8/32:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 6/15![Korean Air logo]()
$970
This Delta deal was found by Cheapflights users on 6/15. 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 7/276:20 am
ONT
- BKK
2 stops28h 45m
Delta
Sat 8/82:35 am
BKK
- ONT
2 stops28h 46m
Delta
Deal found 6/15![Delta logo]()
$989
This Delta deal was found by Cheapflights users on 6/11. 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.
Wed 7/296:00 am
ONT
- BKK
2 stops25h 45m
Delta
Wed 10/149:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 6/11![Delta logo]()
$889
This Delta deal was found by Cheapflights users on 6/13. 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 7/316:20 am
ONT
- BKK
2 stops41h 15m
Delta
Wed 9/29:50 am
BKK
- ONT
2 stops26h 33m
Delta
Deal found 6/13![Delta logo]()
$920
This Delta deal was found by Cheapflights users on 6/13. 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 7/316:20 am
ONT
- BKK
2 stops41h 15m
Delta
Sat 9/511:30 pm
BKK
- ONT
2 stops36h 53m
Delta
Deal found 6/13![Delta logo]()
$951
This Korean Air deal was found by Cheapflights users on 6/13. 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.
Fri 7/316:20 am
ONT
- BKK
2 stops28h 45m
Korean Air
Sat 8/292:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 6/13![Korean Air logo]()
$957
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 June 16, 2026.
Search for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated June 16, 2026.
This WhyPayMore deal was found by Cheapflights users on 6/13. 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 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 6/13![Korean Air logo]()
$432
This WhyPayMore deal was found by Cheapflights users on 6/14. 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 WhyPayMore is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/146:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 6/14![Korean Air logo]()
$433
This SmartFares deal was found by Cheapflights users on 6/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/17:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 6/13![Korean Air logo]()
$446
This Kiwi.com deal was found by Cheapflights users on 6/11. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/206:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 6/11![Korean Air logo]()
$453
This Delta deal was found by Cheapflights users on 6/11. 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.
Tue 11/106:00 am
ONT
- BKK
2 stops24h 30m
Delta
Deal found 6/11![Delta logo]()
$458
This Korean Air deal was found by Cheapflights users on 6/11. 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.
Wed 11/117:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Deal found 6/11![Korean Air logo]()
$460
This Delta deal was found by Cheapflights users on 6/11. 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 7/96:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 6/11![Delta logo]()
$483
This oojo deal was found by Cheapflights users on 6/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1012:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 6/15![China Airlines logo]()
$485
This Korean Air deal was found by Cheapflights users on 6/14. 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.
Sat 8/16:00 am
ONT
- BKK
2 stops25h 45m
Korean Air
Deal found 6/14![Korean Air logo]()
$486
This oojo deal was found by Cheapflights users on 6/15. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 12/110:50 pm
ONT
- BKK
1 stop26h 55m
China Airlines
Deal found 6/15![China Airlines logo]()
$487
This SmartFares deal was found by Cheapflights users on 6/13. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/1112:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 6/13![China Airlines logo]()
$499
This ScholarTrip deal was found by Cheapflights users on 6/11. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/126:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Deal found 6/11![Korean Air logo]()
$505
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 June 16, 2026.
Round-trip from | $854 (SmartFares) |
|---|---|
One-way from | $432 (WhyPayMore) |
Popular in | December |
Cheapest in | March |
Average price | $1,018 |
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 June 16, 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
Tue 9/1
6:00 am-1:05 am
2 stops29h 05m
Bangkok Suvarnabhumi
Thu 10/1
9:50 am-5:20 pm
2 stops21h 30m
$889
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Thu 10/29
7:00 am-10:55 pm
2 stops25h 55m
Chiang Mai
Sun 11/1
12:15 am-5:17 pm
2 stops32h 02m
$895
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 10/18
5:05 pm-1:05 am
2 stops42h 00m
Bangkok Suvarnabhumi
Mon 11/9
9:30 pm-10:43 pm
2 stops40h 13m
$895
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 10/25
5:50 pm-12:45 am
2 stops40h 55m
Bangkok Suvarnabhumi
Sun 11/8
9:40 am-11:48 pm
2 stops29h 08m
$926
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 12/6
7:00 am-9:30 pm
2 stops23h 30m
Bangkok Suvarnabhumi
Mon 1/18
11:15 pm-1:57 pm
2 stops29h 42m
$976
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/15
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Mon 12/7
9:40 am-4:12 pm
2 stops21h 32m
$978
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Tue 10/13
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Wed 10/28
11:40 pm-5:17 pm
2 stops31h 37m
$989
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Wed 10/14
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Mon 10/26
11:40 pm-5:17 pm
2 stops31h 37m
$989
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Thu 10/15
6:00 am-10:10 pm
2 stops26h 10m
Phuket City
Wed 10/28
11:40 pm-5:17 pm
2 stops31h 37m
$989
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Thu 10/22
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Mon 10/26
11:40 pm-5:17 pm
2 stops31h 37m
$995
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 81 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 June 16, 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.
Boarding
8.9
Comfort
8.9
Food
8.6
Entertainment
8.8
Overall
8.9
Crew
9.2
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Boarding
8.9
Comfort
8.9
Food
8.6
Entertainment
8.8
Overall
8.9
Crew
9.2
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Boarding
8.9
Comfort
8.9
Food
8.6
Entertainment
8.8
Overall
8.9
Crew
9.2
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Boarding
8.9
Comfort
8.9
Food
8.6
Entertainment
8.8
Overall
8.9
Crew
9.2
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Boarding
8.9
Comfort
8.9
Food
8.6
Entertainment
8.8
Overall
8.9
Crew
9.2
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - 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 June 16, 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 June 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$820 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$717 | Average$1,159 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$827 | FlexibilityNo cancel fee | On-timeN/A |