$513+ Cheap flights from Ontario (ONT) to Bangkok
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 7/13. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jun 15 — Jun 221
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Bangkok with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
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Cheapest flights from Ontario to BangkokExplore the most affordable flight options available from Ontario to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
Explore the most affordable flight options available from Ontario to Bangkok. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 16, 2026.
This Delta deal was found by Cheapflights users on 5/13. 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.
Thu 10/157:00 am
ONT
- BKK
2 stops24h 45m
Delta
Sun 11/229:40 am
BKK
- ONT
2 stops21h 32m
Delta
Deal found 5/13![Delta logo]()
$852
This Delta deal was found by Cheapflights users on 5/11. 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 9/207:00 am
ONT
- BKK
2 stops24h 45m
Delta
Mon 11/29:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 5/11![Delta logo]()
$853
This Delta deal was found by Cheapflights users on 5/13. 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 10/307:00 am
ONT
- BKK
2 stops24h 30m
Delta
Sat 11/1412:55 am
BKK
- ONT
2 stops31h 22m
Delta
Deal found 5/13![Delta logo]()
$902
This Delta deal was found by Cheapflights users on 5/11. 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 9/107:00 am
ONT
- BKK
2 stops28h 05m
Delta
Sat 10/32:35 am
BKK
- ONT
2 stops28h 41m
Delta
Deal found 5/11![Delta logo]()
$903
This SmartFares deal was found by Cheapflights users on 5/13. 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.
Mon 9/77:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Mon 9/1411:30 pm
BKK
- ONT
2 stops37h 10m
Korean Air
Deal found 5/13![Korean Air logo]()
$910
This Delta deal was found by Cheapflights users on 5/11. 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 11/157:00 am
ONT
- BKK
2 stops25h 20m
Delta
Wed 12/29:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 5/11![Delta logo]()
$911
This Delta deal was found by Cheapflights users on 5/12. 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.
Sat 7/256:20 am
ONT
- BKK
2 stops28h 45m
Delta
Sat 1/169:30 pm
BKK
- ONT
2 stops40h 13m
Delta
Deal found 5/12![Delta logo]()
$927
This Delta deal was found by Cheapflights users on 5/11. 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.
Fri 10/96:00 am
ONT
- BKK
2 stops25h 45m
Delta
Mon 10/199:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 5/11![Delta logo]()
$928
This lol.travel deal was found by Cheapflights users on 5/14. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Sun 12/1312:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 5/14![Korean Air logo]()
$930
This Delta deal was found by Cheapflights users on 5/11. 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 8/15:10 pm
ONT
- BKK
2 stops40h 25m
Delta
Sat 10/249:50 am
BKK
- ONT
2 stops27h 58m
Delta
Deal found 5/11![Delta logo]()
$933
This oojo deal was found by Cheapflights users on 5/15. 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.
Wed 10/282:14 pm
ONT
- BKK
2 stops39h 46m
Singapore Airlines
Mon 12/73:50 pm
BKK
- ONT
2 stops37h 57m
Singapore Airlines
Deal found 5/15![Singapore Airlines logo]()
$945
This Delta deal was found by Cheapflights users on 5/15. 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.
Sun 10/117:00 am
ONT
- BKK
2 stops24h 45m
Delta
Sun 10/189:50 am
BKK
- ONT
2 stops21h 27m
Delta
Deal found 5/15![Delta logo]()
$952
Best flights from Ontario to BangkokDiscover carefully curated flight deals from Ontario to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
Discover carefully curated flight deals from Ontario to Bangkok that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 16, 2026.
This United Airlines deal was found by Cheapflights users on 5/11. 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 9/16:00 am
ONT
- BKK
2 stops27h 55m
United Airlines
Tue 9/89:35 am
BKK
- ONT
2 stops24h 29m
United Airlines
Deal found 5/11![United Airlines logo]()
$1,061
This China Airlines deal was found by Cheapflights users on 5/13. 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.
Sat 8/112:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Sat 11/72:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 5/13![China Airlines logo]()
$1,101
This Delta deal was found by Cheapflights users on 5/13. 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.
Thu 7/91:00 pm
ONT
- BKK
2 stops46h 05m
Delta
Tue 8/119:50 am
BKK
- ONT
2 stops45h 31m
Delta
Deal found 5/13![Delta logo]()
$1,192
This Korean Air deal was found by Cheapflights users on 5/15. 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.
Sat 7/116:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sun 7/1911:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 5/15![Korean Air logo]()
$1,214
This Qatar Airways deal was found by Cheapflights users on 5/15. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:58 am
ONT
- BKK
2 stops28h 22m
Qatar Airways
Tue 9/152:30 am
BKK
- ONT
2 stops30h 33m
Qatar Airways
Deal found 5/15![Qatar Airways logo]()
$1,227
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:45 am
ONT
- DMK
2 stops26h 50m
Multiple Airlines
Tue 8/187:30 am
DMK
- ONT
2 stops25h 10m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,299
This United Airlines deal was found by Cheapflights users on 5/12. 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 8/106:39 pm
ONT
- BKK
2 stops24h 56m
United Airlines
Tue 9/19:35 am
BKK
- ONT
2 stops24h 26m
United Airlines
Deal found 5/12![United Airlines logo]()
$1,065
This United Airlines deal was found by Cheapflights users on 5/12. 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.
Sun 10/184:03 pm
ONT
- BKK
2 stops27h 32m
United Airlines
Thu 10/294:55 pm
BKK
- ONT
2 stops20h 11m
United Airlines
Deal found 5/12![United Airlines logo]()
$1,085
This China Airlines deal was found by Cheapflights users on 5/12. 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 8/912:45 am
ONT
- BKK
1 stop21h 25m
China Airlines
Tue 9/15:50 pm
BKK
- ONT
2 stops38h 50m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,279
This Delta deal was found by Cheapflights users on 5/15. 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 7/106:20 am
ONT
- BKK
2 stops27h 15m
Delta
Sat 7/2511:30 pm
BKK
- ONT
2 stops37h 13m
Delta
Deal found 5/15![Delta logo]()
$1,286
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Wed 9/236:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,313
This Korean Air deal was found by Cheapflights users on 5/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/316:45 am
ONT
- BKK
2 stops26h 50m
Korean Air
Sat 6/132:35 am
BKK
- ONT
2 stops28h 44m
Korean Air
Deal found 5/11![Korean Air logo]()
$1,353
This Mytrip deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/312:45 am
ONT
- DMK
2 stops27h 10m
Multiple Airlines
Fri 8/218:05 pm
DMK
- ONT
2 stops35h 35m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,360
This Korean Air deal was found by Cheapflights users on 5/13. 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 7/176:00 am
ONT
- BKK
2 stops25h 45m
Korean Air
Wed 7/292:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 5/13![Korean Air logo]()
$1,367
This United Airlines deal was found by Cheapflights users on 5/14. 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.
Sat 8/11:50 pm
ONT
- BKK
2 stops29h 45m
United Airlines
Fri 8/219:35 am
BKK
- ONT
2 stops27h 24m
United Airlines
Deal found 5/14![United Airlines logo]()
$1,343
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
- DMK
2 stops27h 10m
Multiple Airlines
Mon 9/218:05 pm
DMK
- ONT
2 stops35h 55m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,371
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Mon 10/1912:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Wed 11/48:10 am
DMK
- ONT
2 stops23h 40m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$1,425
This Mytrip deal was found by Cheapflights users on 5/15. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/1012:45 am
ONT
- DMK
2 stops27h 10m
Multiple Airlines
Sun 7/198:05 pm
DMK
- ONT
2 stops35h 35m
Multiple Airlines
Deal found 5/15![Multiple Airlines logo]()
$1,492
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Tue 9/2212:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Mon 11/307:30 am
DMK
- ONT
2 stops24h 20m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$1,497
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am
ONT
- DMK
2 stops22h 20m
Multiple Airlines
Thu 9/247:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,525
This Mytrip deal was found by Cheapflights users on 5/14. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1912:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Sun 11/157:45 am
DMK
- ONT
1 stop24h 05m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$1,592
This Mytrip deal was found by Cheapflights users on 5/13. 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.
Mon 7/612:45 am
ONT
- DMK
2 stops22h 40m
Multiple Airlines
Tue 7/218:05 am
DMK
- ONT
2 stops24h 35m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,629
This Kiwi.com deal was found by Cheapflights users on 5/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/2512:10 am
ONT
- DMK
1 stop31h 10m
Multiple Airlines
Thu 5/287:25 pm
DMK
- ONT
2 stops35h 40m
Multiple Airlines
Deal found 5/16![Multiple Airlines logo]()
$1,673
This Mytrip deal was found by Cheapflights users on 5/11. 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.
Sat 7/412:45 am
ONT
- DMK
2 stops27h 10m
Multiple Airlines
Fri 7/178:05 pm
DMK
- ONT
2 stops35h 35m
Multiple Airlines
Deal found 5/11![Multiple Airlines logo]()
$1,677
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated May 16, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated May 16, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Fri 5/221:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,097
This oojo deal was found by Cheapflights users on 5/13. 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.
Thu 5/1412:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Thu 6/410:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 5/13![China Airlines logo]()
$1,098
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Fri 6/51:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,135
This FlightHub deal was found by Cheapflights users on 5/12. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/1412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Sun 5/171:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,145
This Mytrip deal was found by Cheapflights users on 5/13. 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 5/1512:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Sun 7/127:30 am
DMK
- ONT
2 stops25h 10m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,586
This China Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 5/1612:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Tue 6/210:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,152
This China Airlines deal was found by Cheapflights users on 5/12. 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.
Sat 5/1612:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Sat 6/131:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 5/12![China Airlines logo]()
$1,162
This oojo deal was found by Cheapflights users on 5/15. 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.
Sun 5/1712:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 5/2710:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 5/15![China Airlines logo]()
$1,071
This FlightHub deal was found by Cheapflights users on 5/13. 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 5/1712:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Sat 5/2310:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 5/13![China Airlines logo]()
$1,093
This lol.travel deal was found by Cheapflights users on 5/13. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Tue 6/210:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 5/13![China Airlines logo]()
$1,160
This Mytrip deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:10 am
ONT
- DMK
2 stops25h 55m
Multiple Airlines
Tue 6/29:20 am
DMK
- ONT
2 stops22h 40m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,536
This Mytrip deal was found by Cheapflights users on 5/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/1712:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Fri 5/226:40 am
DMK
- ONT
2 stops24h 25m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$1,565
One-way flights from Ontario to BangkokSearch for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated May 16, 2026.
This Delta deal was found by Cheapflights users on 5/12. 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 7/136:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 5/12![Delta logo]()
$513
This Delta deal was found by Cheapflights users on 5/12. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 7/86:01 pm
ONT
- BKK
2 stops41h 04m
Delta
Deal found 5/12![Delta logo]()
$524
This Delta deal was found by Cheapflights users on 5/11. 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 8/156:00 am
ONT
- BKK
2 stops25h 45m
Delta
Deal found 5/11![Delta logo]()
$533
This Trip.com deal was found by Cheapflights users on 5/15. 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 Trip.com 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
Deal found 5/15![Korean Air logo]()
$537
This Delta deal was found by Cheapflights users on 5/11. 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 7/276:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 5/11![Delta logo]()
$538
This SmartFares deal was found by Cheapflights users on 5/15. 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.
Tue 8/186:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Deal found 5/15![Korean Air logo]()
$541
This IEagle deal was found by Cheapflights users on 5/14. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/303:05 pm
ONT
- BKK
2 stops27h 50m
Multiple Airlines
Deal found 5/14![Multiple Airlines logo]()
$544
This SmartFares deal was found by Cheapflights users on 5/13. 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.
Sat 8/112:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 5/13![China Airlines logo]()
$547
This Orbitz deal was found by Cheapflights users on 5/13. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/165:26 pm
ONT
- BKK
2 stops28h 44m
Multiple Airlines
Deal found 5/13![Multiple Airlines logo]()
$549
This SmartFares deal was found by Cheapflights users on 5/11. 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.
Tue 10/207:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 5/11![Korean Air logo]()
$551
This Trip.com deal was found by Cheapflights users on 5/11. 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 Trip.com 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 5/11![Korean Air logo]()
$557
This Delta deal was found by Cheapflights users on 5/11. 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 8/16:20 am
ONT
- BKK
2 stops28h 45m
Delta
Deal found 5/11![Delta logo]()
$558
Find flight deals from Ontario to Bangkok
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Bangkok (TH1). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 16, 2026.
Round-trip from | $852 (Delta) |
|---|---|
One-way from | $513 (Delta) |
Popular in | December |
Cheapest in | January |
Average price | $1,131 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Bangkok that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
Use the filters below to find and compare flights from Ontario to Bangkok that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/1
6:00 am-11:55 pm
2 stops27h 55m
Bangkok Suvarnabhumi
Tue 9/8
9:35 am-8:04 pm
2 stops24h 29m
$1,061
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 8/10
6:39 pm-9:35 am
2 stops24h 56m
Bangkok Suvarnabhumi
Tue 9/1
9:35 am-8:01 pm
2 stops24h 26m
$1,065
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 10/18
4:03 pm-9:35 am
2 stops27h 32m
Bangkok Suvarnabhumi
Thu 10/29
4:55 pm-11:06 pm
2 stops20h 11m
$1,085
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 8/1
12:45 am-1:25 am
1 stop34h 40m
Bangkok Suvarnabhumi
Sat 11/7
2:05 pm-4:50 pm
1 stop17h 45m
$1,101
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 7/9
1:00 pm-1:05 am
2 stops46h 05m
Bangkok Suvarnabhumi
Tue 8/11
9:50 am-5:21 pm
2 stops45h 31m
$1,192
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 7/11
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Sun 7/19
11:30 pm-5:21 pm
2 stops31h 51m
$1,214
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/2
11:58 am-6:20 am
2 stops28h 22m
Bangkok Suvarnabhumi
Tue 9/15
2:30 am-7:03 pm
2 stops30h 33m
$1,227
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 8/9
12:45 am-12:10 pm
1 stop21h 25m
Bangkok Suvarnabhumi
Tue 9/1
5:50 pm-6:40 pm
2 stops38h 50m
$1,279
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 7/10
6:20 am-11:35 pm
2 stops27h 15m
Bangkok Suvarnabhumi
Sat 7/25
11:30 pm-10:43 pm
2 stops37h 13m
$1,286
OntarioBangkok
ONT - DMK
ONTDMK
Ontario
Mon 8/3
12:45 am-5:35 pm
2 stops26h 50m
Bangkok Don Mueang Intl
Tue 8/18
7:30 am-6:40 pm
2 stops25h 10m
$1,299
Showing 1-10 of 48 resultsSorted by cheapest first
Best time to book a flight from Ontario to Bangkok
Have a flexible travel schedule? Discover the best time to fly to Bangkok from Ontario with our price prediction graph.
ONT-TH1
ONT-BKK
ONT-DMK
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Bangkok
ONT-TH1
ONT-BKK
ONT-DMK
How far ahead should I book a flight from Ontario to Bangkok?
Booking 80 days in advance of your planned departure date is, on average, the best time to get cheap flights from Ontario to Bangkok. The general trend is that the closer you book to the departure date, the more expensive your flight will be.
What is the cheapest month to book a flight from Ontario to Bangkok?
Currently, July is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $457). Flying from Ontario to Bangkok in June is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Ontario to Bangkok?
Reviews of airlines servicing Bangkok
Get insights into the airlines that provide service to Bangkok. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Bangkok. Reviews last updated May 16, 2026.
Read through reviews of airlines operating flights from Ontario to Bangkok, such as STARLUX Airlines,Korean Air, andChina Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
8.8
Food
8.7
Crew
9.2
Boarding
9.0
Comfort
8.9
Overall
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Entertainment
8.8
Food
8.7
Crew
9.2
Boarding
9.0
Comfort
8.9
Overall
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Entertainment
8.8
Food
8.7
Crew
9.2
Boarding
9.0
Comfort
8.9
Overall
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Entertainment
8.8
Food
8.7
Crew
9.2
Boarding
9.0
Comfort
8.9
Overall
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Entertainment
8.8
Food
8.7
Crew
9.2
Boarding
9.0
Comfort
8.9
Overall
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Related info for your journey
Find useful and relevant information for your journey from Ontario to Bangkok. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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Popular flights
Alternative routes for Ontario to Bangkok
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Bangkok by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Bangkok by cabin class
Find flights from Ontario to Bangkok, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Bangkok flights
Browse other Ontario and Bangkok flight options. Last updated on May 16, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on May 16, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top 4 airlines flying from Ontario to Bangkok
Discover the top 4 airlines that operate flights from Ontario to Bangkok. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 16, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$788 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$717 | Average$831 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$824 | FlexibilityNo cancel fee | On-timeN/A |