$459+ 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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
May 9 — May 161
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Bangkok
Cheapest
Best
Last-minute
One-way
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 April 9, 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 April 9, 2026.
This SmartFares deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1012:45 am
ONT
- BKK
1 stop21h 25m
China Airlines
Fri 9/251:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/8![China Airlines logo]()
$823
This Vliegwinkel deal was found by Cheapflights users on 4/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:10 am
ONT
- BKK
1 stop35h 15m
China Airlines
Wed 5/205:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 4/7![China Airlines logo]()
$825
This SmartFares deal was found by Cheapflights users on 4/7. 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.
Tue 10/612:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Tue 10/201:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/7![China Airlines logo]()
$832
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 10/2112:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Sun 11/15:50 pm
BKK
- ONT
1 stop38h 00m
China Airlines
Deal found 4/6![China Airlines logo]()
$833
This SmartFares deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 10/2012:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 11/42:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 4/4![China Airlines logo]()
$835
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/2612:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 5/131:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/6![China Airlines logo]()
$839
This oojo deal was found by Cheapflights users on 4/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Thu 5/141:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/8![China Airlines logo]()
$840
This Gotogate deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1812:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Mon 11/162:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 4/4![China Airlines logo]()
$841
This Gotogate deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:50 pm
ONT
- BKK
1 stop23h 15m
China Airlines
Wed 11/252:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 4/5![China Airlines logo]()
$845
This CrystalTravel deal was found by Cheapflights users on 4/8. 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 CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3011:50 pm
ONT
- BKK
1 stop20h 00m
China Airlines
Fri 11/132:05 pm
BKK
- ONT
1 stop17h 45m
China Airlines
Deal found 4/8![China Airlines logo]()
$848
This Gotogate deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2112:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Sun 11/222:35 am
BKK
- ONT
1 stop29h 15m
China Airlines
Deal found 4/4![China Airlines logo]()
$850
This Mytrip deal was found by Cheapflights users on 4/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 5/67:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,096
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 April 9, 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 April 9, 2026.
This China Airlines deal was found by Cheapflights users on 4/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/212:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Fri 5/151:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/7![China Airlines logo]()
$955
This Korean Air deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/307:00 am
ONT
- BKK
2 stops24h 45m
Multiple Airlines
Tue 5/129:50 am
BKK
- ONT
2 stops21h 20m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$974
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 9/227:13 pm
ONT
- BKK
2 stops24h 22m
United Airlines
Tue 9/297:00 am
BKK
- ONT
2 stops24h 47m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,018
This Korean Air deal was found by Cheapflights users on 4/8. 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.
Fri 4/247:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 7/192:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 4/8![Korean Air logo]()
$1,090
This United Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/11:30 pm
ONT
- BKK
2 stops54h 05m
United Airlines
Thu 5/143:45 pm
BKK
- ONT
2 stops45h 14m
United Airlines
Deal found 4/5![United Airlines logo]()
$1,034
This China Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 9/2612:10 am
ONT
- BKK
2 stops31h 15m
China Airlines
Thu 10/11:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/6![China Airlines logo]()
$1,079
This Korean Air deal was found by Cheapflights users on 4/8. 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.
Sat 4/257:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Sun 7/192:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 4/8![Korean Air logo]()
$1,090
This Mytrip deal was found by Cheapflights users on 4/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 5/67:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,096
This China Airlines deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 5/1112:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Tue 5/195:50 pm
BKK
- ONT
2 stops38h 10m
China Airlines
Deal found 4/6![China Airlines logo]()
$1,117
This Mytrip deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Mon 5/117:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,153
This United Airlines deal was found by Cheapflights users on 4/8. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/16:53 pm
ONT
- BKK
2 stops24h 42m
United Airlines
Mon 11/94:55 pm
BKK
- ONT
2 stops21h 11m
United Airlines
Deal found 4/8![United Airlines logo]()
$1,184
This Korean Air deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 6/96:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Mon 6/152:35 am
BKK
- ONT
2 stops28h 44m
Korean Air
Deal found 4/4![Korean Air logo]()
$1,215
This United Airlines deal was found by Cheapflights users on 4/7. 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.
Sun 5/310:37 am
ONT
- BKK
2 stops51h 58m
United Airlines
Mon 5/183:45 pm
BKK
- ONT
2 stops40h 07m
United Airlines
Deal found 4/7![United Airlines logo]()
$1,201
This China Airlines deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/1812:10 am
ONT
- BKK
2 stops23h 10m
China Airlines
Sun 6/75:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 4/5![China Airlines logo]()
$1,213
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/2712:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Thu 5/147:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,227
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 5/412:10 am
ONT
- DMK
2 stops32h 30m
Multiple Airlines
Tue 5/126:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,235
This Kiwi.com deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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.
Sun 8/1612:45 am
ONT
- DMK
2 stops40h 20m
Multiple Airlines
Mon 8/317:25 am
DMK
- ONT
1 stop25h 15m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,245
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 8/2212:45 am
ONT
- DMK
2 stops26h 50m
Multiple Airlines
Wed 9/97:30 am
DMK
- ONT
2 stops25h 10m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$1,255
This Mytrip deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” 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 9/1812:10 am
ONT
- DMK
2 stops27h 45m
Multiple Airlines
Sat 9/267:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/4![Multiple Airlines logo]()
$1,281
This Mytrip deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/2212:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Sat 5/26:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 4/6![Multiple Airlines logo]()
$1,346
This Mytrip deal was found by Cheapflights users on 4/8. 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.
Sat 4/2512:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Sat 5/27:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/8![Multiple Airlines logo]()
$1,353
This Mytrip deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 am
ONT
- DMK
2 stops26h 50m
Multiple Airlines
Thu 8/207:00 am
DMK
- ONT
2 stops25h 40m
Multiple Airlines
Deal found 4/5![Multiple Airlines logo]()
$1,417
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated April 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated April 9, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 4/7. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:10 am
ONT
- BKK
1 stop35h 15m
China Airlines
Sun 8/3010:50 am
BKK
- ONT
1 stop21h 50m
China Airlines
Deal found 4/7![China Airlines logo]()
$851
This Vliegwinkel deal was found by Cheapflights users on 4/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 4/2312:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Thu 5/72:40 am
BKK
- ONT
1 stop29h 20m
China Airlines
Deal found 4/7![China Airlines logo]()
$866
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Thu 5/141:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/8![China Airlines logo]()
$858
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 4/2612:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Wed 5/131:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/6![China Airlines logo]()
$839
This Mytrip deal was found by Cheapflights users on 4/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 4/2612:10 am
ONT
- DMK
2 stops27h 25m
Multiple Airlines
Wed 5/67:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/7![Multiple Airlines logo]()
$1,096
This Trip.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/277:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Tue 5/129:50 am
BKK
- ONT
2 stops45h 20m
Korean Air
Deal found 4/6![Korean Air logo]()
$867
This Vliegwinkel deal was found by Cheapflights users on 4/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 5/312:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Mon 5/1810:50 am
BKK
- ONT
1 stop21h 10m
China Airlines
Deal found 4/4![China Airlines logo]()
$865
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 5/412:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Thu 5/215:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 4/6![China Airlines logo]()
$857
This oojo deal was found by Cheapflights users on 4/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Thu 9/31:20 pm
BKK
- ONT
1 stop19h 20m
China Airlines
Deal found 4/8![China Airlines logo]()
$852
This Vliegwinkel deal was found by Cheapflights users on 4/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:10 am
ONT
- BKK
1 stop35h 15m
China Airlines
Wed 5/205:30 pm
BKK
- ONT
1 stop38h 30m
China Airlines
Deal found 4/7![China Airlines logo]()
$825
This oojo deal was found by Cheapflights users on 4/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/912:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Thu 5/141:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 4/8![China Airlines logo]()
$840
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 5/1212:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Thu 9/310:50 am
BKK
- ONT
1 stop21h 50m
China Airlines
Deal found 4/6![China Airlines logo]()
$869
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 April 9, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated April 9, 2026.
This iWofly deal was found by Cheapflights users on 4/7. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/287:00 am
ONT
- BKK
2 stops28h 05m
Korean Air
Deal found 4/7![Korean Air logo]()
$459
This SmartFares deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” 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 9/107:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 4/6![Korean Air logo]()
$464
This oojo deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 4/2512:10 am
ONT
- BKK
1 stop22h 00m
China Airlines
Deal found 4/6![China Airlines logo]()
$466
This oojo deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 9/1412:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Deal found 4/5![China Airlines logo]()
$469
This iWofly deal was found by Cheapflights users on 4/7. 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 iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2812:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 4/7![China Airlines logo]()
$472
This SmartFares deal was found by Cheapflights users on 4/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 4/8![China Airlines logo]()
$475
This FlightHub deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3112:45 am
ONT
- BKK
1 stop19h 00m
China Airlines
Deal found 4/6![China Airlines logo]()
$477
This Gotogate deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 4/5![China Airlines logo]()
$478
This Trip.com deal was found by Cheapflights users on 4/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/112:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Deal found 4/6![China Airlines logo]()
$479
This FlightHub deal was found by Cheapflights users on 4/8. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 4/2112:10 am
ONT
- BKK
1 stop19h 35m
China Airlines
Deal found 4/8![China Airlines logo]()
$480
This Delta deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” 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 4/267:00 am
ONT
- BKK
2 stops26h 35m
Delta
Deal found 4/5![Delta logo]()
$483
This iWofly deal was found by Cheapflights users on 4/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure iWofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 4/227:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Deal found 4/5![Korean Air logo]()
$484
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 April 9, 2026.
Round-trip from | $823 (SmartFares) |
|---|---|
One-way from | $459 (iWofly) |
Popular in | December |
Cheapest in | January |
Average price | $803 |
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 April 9, 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
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 5/2
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Fri 5/15
1:20 pm-6:00 pm
1 stop18h 40m
$955
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 4/30
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Tue 5/12
9:50 am-5:10 pm
2 stops21h 20m
$974
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 9/22
7:13 pm-9:35 am
2 stops24h 22m
Bangkok Suvarnabhumi
Tue 9/29
7:00 am-5:47 pm
2 stops24h 47m
$1,018
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 5/1
1:30 pm-9:35 am
2 stops54h 05m
Bangkok Suvarnabhumi
Thu 5/14
3:45 pm-10:59 pm
2 stops45h 14m
$1,034
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 9/26
12:10 am-9:25 pm
2 stops31h 15m
Bangkok Suvarnabhumi
Thu 10/1
1:20 pm-6:00 pm
1 stop18h 40m
$1,079
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 4/24
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Sun 7/19
2:35 am-5:21 pm
2 stops28h 46m
$1,090
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 4/25
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Sun 7/19
2:35 am-5:21 pm
2 stops28h 46m
$1,090
OntarioBangkok
ONT - DMK
ONTDMK
Ontario
Sun 4/26
12:10 am-5:35 pm
2 stops27h 25m
Bangkok Don Mueang Intl
Wed 5/6
7:30 am-6:00 pm
2 stops24h 30m
$1,096
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 5/11
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Tue 5/19
5:50 pm-6:00 pm
2 stops38h 10m
$1,117
OntarioBangkok
ONT - DMK
ONTDMK
Ontario
Sun 5/3
12:10 am-11:05 pm
2 stops32h 55m
Bangkok Don Mueang Intl
Mon 5/11
7:30 am-6:00 pm
2 stops24h 30m
$1,153
Showing 1-10 of 42 resultsSorted by cheapest first
Best time to book a flight from Ontario to Bangkok
Have a flexible travel schedule? Discover the best time to fly to Bangkok from Ontario with our price prediction graph.
ONT-TH1
ONT-BKK
ONT-DMK
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Bangkok
ONT-TH1
ONT-BKK
ONT-DMK
How far ahead should I book a flight from Ontario to Bangkok?
Use this chart to determine the optimal time to book a round-trip flight from Ontario to Bangkok. Price data was last updated on April 3, 2026.
Booking 83 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, January is the cheapest month in which you can book a flight from Ontario to Bangkok (average of $503). Flying from Ontario to Bangkok in June is currently the most expensive (average of $747). 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 April 9, 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.
Crew
9.2
Food
8.7
Entertainment
8.8
Comfort
8.9
Overall
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Crew
9.2
Food
8.7
Entertainment
8.8
Comfort
8.9
Overall
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Crew
9.2
Food
8.7
Entertainment
8.8
Comfort
8.9
Overall
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Crew
9.2
Food
8.7
Entertainment
8.8
Comfort
8.9
Overall
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
Crew
9.2
Food
8.7
Entertainment
8.8
Comfort
8.9
Overall
8.9
Boarding
9.0
Reviews
1 / 10
10.0
ExcellentAnonymous,Jan 2026
SEA - TPE
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.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Other flights from Ontario
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 April 9, 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 April 9, 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 April 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$783 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$717 | Average$835 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$816 | FlexibilityNo cancel fee | On-timeN/A |