$437+ 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 10/1. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jul 12 — Jul 191
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 12, 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 12, 2026.
This SmartFares deal was found by Cheapflights users on 6/9. 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 11/37:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Mon 11/1612:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 6/9![Korean Air logo]()
$880
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/136:00 am
ONT
- BKK
2 stops25h 45m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops27h 02m
Delta
Deal found 6/7![Delta logo]()
$881
This Delta deal was found by Cheapflights users on 6/7. 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 7/121:00 pm
ONT
- BKK
2 stops46h 05m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops37h 22m
Delta
Deal found 6/7![Delta logo]()
$887
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/136:00 am
ONT
- BKK
2 stops29h 05m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/7![Delta logo]()
$888
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 10/157:00 am
ONT
- BKK
2 stops24h 45m
Delta
Thu 10/299:40 am
BKK
- ONT
2 stops21h 37m
Delta
Deal found 6/11![Delta logo]()
$889
This Delta deal was found by Cheapflights users on 6/10. 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 11/25:05 pm
ONT
- BKK
2 stops37h 25m
Delta
Thu 12/39:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 6/10![Delta logo]()
$894
This Korean Air deal was found by Cheapflights users on 6/8. 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.
Tue 11/177:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Tue 1/199:30 pm
BKK
- ONT
2 stops31h 27m
Korean Air
Deal found 6/8![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 6/8. 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.
Thu 7/166:20 am
ONT
- BKK
2 stops25h 25m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/8![Delta logo]()
$896
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 7/141:00 pm
ONT
- BKK
2 stops46h 05m
Delta
Mon 7/272:35 am
BKK
- ONT
2 stops46h 42m
Delta
Deal found 6/8![Delta logo]()
$902
This SmartFares deal was found by Cheapflights users on 6/9. 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.
Sun 11/17:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 11/1511:15 pm
BKK
- ONT
2 stops33h 02m
Korean Air
Deal found 6/9![Korean Air logo]()
$911
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 11/167:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 5/211:30 pm
BKK
- ONT
2 stops31h 47m
Korean Air
Deal found 6/12![Korean Air logo]()
$912
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 12, 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 12, 2026.
This Delta deal was found by Cheapflights users on 6/10. 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 10/197:00 am
ONT
- BKK
2 stops24h 45m
Delta
Thu 10/229:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 6/10![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/9. 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.
Sun 11/17:00 am
ONT
- CNX
2 stops24h 55m
Korean Air
Wed 11/412:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 6/9![Korean Air logo]()
$926
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 9/96:00 am
ONT
- BKK
2 stops25h 45m
Multiple Airlines
Sun 10/112:35 am
BKK
- ONT
2 stops28h 42m
Multiple Airlines
Deal found 6/11![Multiple Airlines logo]()
$944
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/106:53 pm
ONT
- BKK
2 stops25h 32m
United Airlines
Tue 12/87:10 am
BKK
- ONT
2 stops20h 10m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,006
This China Airlines deal was found by Cheapflights users on 6/9. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:50 pm
ONT
- CNX
1 stop20h 35m
China Airlines
Thu 11/511:25 am
CNX
- ONT
1 stop20h 25m
China Airlines
Deal found 6/9![China Airlines logo]()
$1,136
This Delta deal was found by Cheapflights users on 6/10. 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 11/47:00 am
ONT
- BKK
2 stops39h 25m
Delta
Thu 11/269:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 6/10![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/9. 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.
Mon 7/136:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Mon 7/279:40 pm
BKK
- ONT
2 stops33h 41m
Korean Air
Deal found 6/9![Korean Air logo]()
$984
This United Airlines deal was found by Cheapflights users on 6/7. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/159:25 am
ONT
- BKK
2 stops24h 30m
United Airlines
Thu 10/294:55 pm
BKK
- ONT
2 stops20h 11m
United Airlines
Deal found 6/7![United Airlines logo]()
$1,017
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 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 10/227:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Mon 10/2611:40 pm
HKT
- ONT
2 stops31h 37m
Korean Air
Deal found 6/11![Korean Air logo]()
$995
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/148:03 am
ONT
- BKK
2 stops25h 52m
United Airlines
Wed 11/184:55 pm
BKK
- ONT
2 stops21h 11m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,017
This China Airlines deal was found by Cheapflights users on 6/9. 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 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 10/2911:25 am
CNX
- ONT
1 stop20h 25m
China Airlines
Deal found 6/9![China Airlines logo]()
$1,136
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.
Sat 8/1512:45 am
ONT
- DMK
1 stop25h 55m
Multiple Airlines
Mon 8/246:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 6/12![Multiple Airlines logo]()
$1,154
This SmartFares deal was found by Cheapflights users on 6/7. 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.
Mon 10/267:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Mon 11/1611:40 pm
HKT
- ONT
2 stops32h 37m
Korean Air
Deal found 6/7![Korean Air logo]()
$1,013
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 8/186:20 am
ONT
- HKT
2 stops25h 50m
Delta
Fri 8/2811:25 pm
HKT
- ONT
2 stops36h 58m
Delta
Deal found 6/10![Delta logo]()
$1,020
This China Airlines 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 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 6/11![China Airlines logo]()
$1,136
This United Airlines deal was found by Cheapflights users on 6/9. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:13 pm
ONT
- BKK
2 stops24h 22m
United Airlines
Tue 10/209:35 am
BKK
- ONT
2 stops24h 56m
United Airlines
Deal found 6/9![United Airlines logo]()
$1,035
This Mytrip deal was found by Cheapflights users on 6/8. 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.
Thu 9/312:45 am
ONT
- DMK
2 stops32h 20m
Multiple Airlines
Fri 9/187:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 6/8![Multiple Airlines logo]()
$1,226
This Delta deal was found by Cheapflights users on 6/10. 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.
Tue 8/186:20 am
ONT
- HKT
2 stops25h 50m
Delta
Thu 8/2711:25 pm
HKT
- ONT
2 stops38h 09m
Delta
Deal found 6/10![Delta logo]()
$1,020
This Korean Air deal was found by Cheapflights users on 6/10. 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.
Mon 8/176:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Sat 8/2911:25 pm
HKT
- ONT
2 stops31h 56m
Korean Air
Deal found 6/10![Korean Air logo]()
$1,026
This China Airlines 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 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
Thu 9/1711:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,136
This United Airlines 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/241:33 pm
ONT
- BKK
2 stops30h 52m
United Airlines
Tue 1/197:10 am
BKK
- ONT
2 stops20h 10m
United Airlines
Deal found 6/11![United Airlines logo]()
$1,086
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.
Sat 8/226:00 am
ONT
- HKT
2 stops26h 10m
Delta
Wed 9/1611:25 pm
HKT
- ONT
2 stops38h 12m
Delta
Deal found 6/11![Delta logo]()
$1,020
This Korean Air deal was found by Cheapflights users on 6/8. 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.
Mon 9/76:20 am
ONT
- HKT
2 stops25h 50m
Korean Air
Thu 9/1011:25 pm
HKT
- ONT
2 stops31h 51m
Korean Air
Deal found 6/8![Korean Air logo]()
$1,026
This China Airlines 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 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
Wed 9/1611:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,136
This China Airlines 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 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
Sun 9/1311:20 am
CNX
- ONT
1 stop21h 20m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,136
This Delta deal was found by Cheapflights users on 6/8. 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.
Fri 7/176:20 am
ONT
- BKK
2 stops25h 25m
Delta
Thu 7/309:50 am
BKK
- ONT
2 stops45h 31m
Delta
Deal found 6/8![Delta logo]()
$1,039
This Mytrip deal was found by Cheapflights users on 6/10. 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.
Fri 9/412:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Wed 9/236:15 am
DMK
- ONT
1 stop24h 50m
Multiple Airlines
Deal found 6/10![Multiple Airlines logo]()
$1,389
This China Airlines 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 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 9/1411:20 am
CNX
- ONT
1 stop21h 20m
China Airlines
Deal found 6/11![China Airlines logo]()
$1,136
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 7/136:20 am
ONT
- BKK
2 stops28h 45m
Delta
Sat 7/252:35 am
BKK
- ONT
2 stops34h 17m
Delta
Deal found 6/11![Delta logo]()
$1,045
Last-minute flights from Ontario to ThailandDiscover last-minute flight deals from Ontario to Thailand. Data last updated June 12, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Thailand. Data last updated June 12, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/106:00 am
ONT
- BKK
2 stops29h 05m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops27h 02m
Delta
Deal found 6/7![Delta logo]()
$931
This Delta deal was found by Cheapflights users on 6/7. 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.
Fri 7/106:00 am
ONT
- BKK
2 stops29h 05m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/7![Delta logo]()
$938
This Delta deal was found by Cheapflights users on 6/7. 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.
Sat 7/115:10 pm
ONT
- BKK
2 stops40h 25m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops27h 02m
Delta
Deal found 6/7![Delta logo]()
$937
This Delta deal was found by Cheapflights users on 6/7. 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 7/121:00 pm
ONT
- BKK
2 stops46h 05m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops27h 02m
Delta
Deal found 6/7![Delta logo]()
$887
This Delta deal was found by Cheapflights users on 6/7. 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 7/129:40 am
ONT
- BKK
2 stops49h 25m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/7![Delta logo]()
$894
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/136:00 am
ONT
- BKK
2 stops29h 05m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops27h 02m
Delta
Deal found 6/7![Delta logo]()
$881
This Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/136:00 am
ONT
- BKK
2 stops29h 05m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/7![Delta logo]()
$888
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 7/145:10 pm
ONT
- BKK
2 stops41h 55m
Delta
Tue 10/1311:30 pm
BKK
- ONT
2 stops37h 13m
Delta
Deal found 6/8![Delta logo]()
$895
This Delta deal was found by Cheapflights users on 6/8. 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.
Tue 7/149:40 am
ONT
- BKK
2 stops49h 25m
Delta
Tue 7/289:50 am
BKK
- ONT
2 stops39h 27m
Delta
Deal found 6/8![Delta logo]()
$902
This Delta deal was found by Cheapflights users on 6/8. 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.
Thu 7/166:20 am
ONT
- BKK
2 stops25h 25m
Delta
Mon 7/2711:30 pm
BKK
- ONT
2 stops49h 47m
Delta
Deal found 6/8![Delta logo]()
$896
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
Thu 10/159:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 6/11![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/10. 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.
Wed 7/296:20 am
ONT
- BKK
2 stops41h 15m
Korean Air
Sat 8/82:35 am
BKK
- ONT
2 stops34h 10m
Korean Air
Deal found 6/10![Korean Air logo]()
$926
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 12, 2026.
Search for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated June 12, 2026.
This SmartFares deal was found by Cheapflights users on 6/9. 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.
Thu 10/16:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 6/9![Korean Air logo]()
$437
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 6/12. 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.
Mon 7/136:00 am
ONT
- BKK
2 stops27h 35m
Delta
Deal found 6/12![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 6/8. 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 7/266:01 pm
ONT
- BKK
2 stops41h 04m
Delta
Deal found 6/8![Delta logo]()
$469
This Delta deal was found by Cheapflights users on 6/8. 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 7/126:01 pm
ONT
- BKK
2 stops37h 44m
Delta
Deal found 6/8![Delta logo]()
$470
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 Delta deal was found by Cheapflights users on 6/7. 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.
Mon 7/611:57 am
ONT
- BKK
2 stops47h 08m
Delta
Deal found 6/7![Delta logo]()
$495
This SmartFares 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:50 pm
ONT
- BKK
1 stop20h 00m
China Airlines
Deal found 6/12![China Airlines logo]()
$499
This Flightnetwork 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 Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:50 pm
ONT
- BKK
1 stop26h 55m
China Airlines
Deal found 6/12![China Airlines logo]()
$504
This oojo 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/2611:50 pm
ONT
- BKK
1 stop23h 15m
China Airlines
Deal found 6/12![China Airlines logo]()
$505
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 12, 2026.
Round-trip from | $880 (SmartFares) |
|---|---|
One-way from | $437 (SmartFares) |
Popular in | December |
Cheapest in | March |
Average price | $1,009 |
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 12, 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
Mon 10/19
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Thu 10/22
9:50 am-5:17 pm
2 stops21h 27m
$889
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 11/4
7:00 am-1:25 pm
2 stops39h 25m
Bangkok Suvarnabhumi
Thu 11/26
9:40 am-4:12 pm
2 stops21h 32m
$889
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Sun 11/1
7:00 am-10:55 pm
2 stops24h 55m
Chiang Mai
Wed 11/4
12:15 am-5:17 pm
2 stops32h 02m
$926
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/9
6:00 am-9:45 pm
2 stops25h 45m
Bangkok Suvarnabhumi
Sun 10/11
2:35 am-5:17 pm
2 stops28h 42m
$944
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
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 7/13
6:20 am-11:35 pm
2 stops27h 15m
Bangkok Suvarnabhumi
Mon 7/27
9:40 pm-5:21 pm
2 stops33h 41m
$984
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
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 11/10
6:53 pm-11:25 am
2 stops25h 32m
Bangkok Suvarnabhumi
Tue 12/8
7:10 am-12:20 pm
2 stops20h 10m
$1,006
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Mon 10/26
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Mon 11/16
11:40 pm-5:17 pm
2 stops32h 37m
$1,013
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 10/15
9:25 am-11:55 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Thu 10/29
4:55 pm-11:06 pm
2 stops20h 11m
$1,017
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-CNX
ONT-HKT
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-CNX
ONT-HKT
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 12, 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
9.2
Comfort
8.9
Boarding
8.9
Entertainment
8.8
Food
8.6
Overall
8.9
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.2
Comfort
8.9
Boarding
8.9
Entertainment
8.8
Food
8.6
Overall
8.9
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.2
Comfort
8.9
Boarding
8.9
Entertainment
8.8
Food
8.6
Overall
8.9
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.2
Comfort
8.9
Boarding
8.9
Entertainment
8.8
Food
8.6
Overall
8.9
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.2
Comfort
8.9
Boarding
8.9
Entertainment
8.8
Food
8.6
Overall
8.9
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 12, 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 12, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$805 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$717 | Average$1,158 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$827 | FlexibilityNo cancel fee | On-timeN/A |