$376+ 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 12/2. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Sep 3 — Sep 101
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 August 4, 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 August 4, 2026.
This Bravofly deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops25h 45m
Wed 9/232:35 am -
2 stops28h 44m
Deal found 8/3![Korean Air logo]()
$755
This SmartFares deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:30 pm -
1 stop22h 30m
Fri 9/181:10 pm -
1 stop17h 55m
Deal found 8/1![STARLUX Airlines logo]()
$759
This Vliegwinkel deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Mon 8/3111:55 pm -
1 stop22h 05m
Sun 9/135:50 pm -
1 stop37h 15m
Deal found 7/31![STARLUX Airlines logo]()
$762
This Kissandfly.com deal was found by Cheapflights users on 8/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:55 pm -
1 stop22h 05m
Fri 9/111:10 pm -
1 stop17h 55m
Deal found 8/4![STARLUX Airlines logo]()
$764
This SmartFares deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/3110:45 pm -
1 stop23h 50m
Sat 11/141:45 pm -
1 stop17h 10m
Deal found 8/1![STARLUX Airlines logo]()
$769
This flugladen.de deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop22h 05m
Tue 9/155:50 pm -
1 stop37h 15m
Deal found 7/30![STARLUX Airlines logo]()
$772
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/49:45 pm -
1 stop27h 45m
Wed 12/21:45 pm -
1 stop17h 10m
Deal found 7/31![STARLUX Airlines logo]()
$774
This oojo deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 11/99:45 pm -
1 stop23h 50m
Sat 12/261:45 pm -
1 stop17h 10m
Deal found 8/2![STARLUX Airlines logo]()
$775
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/511:30 pm -
1 stop27h 10m
Sun 10/185:50 pm -
1 stop37h 15m
Deal found 8/1![STARLUX Airlines logo]()
$776
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/99:45 pm -
1 stop27h 45m
Wed 11/181:45 pm -
1 stop17h 10m
Deal found 7/31![STARLUX Airlines logo]()
$777
This FlightHub deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 11/99:45 pm -
1 stop27h 45m
Mon 11/161:45 pm -
1 stop17h 10m
Deal found 8/1![STARLUX Airlines logo]()
$778
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/1812:45 am -
1 stop28h 45m
Sun 8/237:25 am -
1 stop25h 15m
Deal found 8/3![Multiple Airlines logo]()
$991
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 August 4, 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 August 4, 2026.
This STARLUX Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:45 pm -
1 stop23h 50m
Sun 11/15:40 pm -
1 stop37h 15m
Deal found 8/1![STARLUX Airlines logo]()
$809
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:01 pm -
2 stops41h 04m
Mon 11/99:40 am -
2 stops21h 50m
Deal found 8/4![Delta logo]()
$826
This China Airlines deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/1712:45 am -
1 stop25h 35m
Sat 8/291:20 pm -
1 stop19h 20m
Deal found 8/1![China Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 8/4. 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.
Wed 9/912:45 am -
1 stop25h 55m
Sun 9/137:25 am -
1 stop25h 15m
Deal found 8/4![Multiple Airlines logo]()
$1,045
This STARLUX Airlines deal was found by Cheapflights users on 8/4. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/149:45 pm -
1 stop27h 45m
Mon 12/141:45 pm -
1 stop17h 10m
Deal found 8/4![STARLUX Airlines logo]()
$810
This Delta deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/156:20 am -
2 stops27h 15m
Tue 8/259:40 pm -
2 stops39h 05m
Deal found 7/30![Delta logo]()
$833
This China Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Fri 10/1612:10 am -
1 stop19h 35m
Sat 10/3110:55 am -
1 stop21h 10m
Deal found 8/3![China Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 1/137:00 am -
2 stops25h 20m
Sun 2/79:40 am -
2 stops21h 32m
Deal found 7/31![Delta logo]()
$833
This China Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:10 am -
1 stop19h 35m
Tue 11/32:05 pm -
1 stop18h 00m
Deal found 8/3![China Airlines logo]()
$913
This Delta deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 1/146:00 am -
2 stops24h 30m
Sun 2/79:40 am -
2 stops21h 32m
Deal found 7/31![Delta logo]()
$833
This Mytrip deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/1712:45 am -
1 stop25h 55m
Tue 8/257:25 am -
1 stop25h 15m
Deal found 8/1![Multiple Airlines logo]()
$1,053
This China Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2012:10 am -
1 stop19h 35m
Thu 10/292:35 am -
1 stop29h 30m
Deal found 8/3![China Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/1512:10 am -
2 stops27h 25m
Wed 9/307:30 am -
2 stops24h 30m
Deal found 8/2![Multiple Airlines logo]()
$1,095
This China Airlines deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/2810:50 pm -
1 stop20h 00m
Sun 2/212:35 am -
1 stop29h 30m
Deal found 7/30![China Airlines logo]()
$913
This Mytrip deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 8/2712:45 am -
2 stops32h 20m
Fri 9/47:30 am -
2 stops25h 10m
Deal found 8/1![Multiple Airlines logo]()
$1,103
This China Airlines deal was found by Cheapflights users on 8/4. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2712:10 am -
1 stop26h 10m
Thu 10/151:20 pm -
1 stop18h 40m
Deal found 8/4![China Airlines logo]()
$914
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/3012:10 am -
2 stops32h 55m
Thu 10/157:30 am -
2 stops24h 30m
Deal found 8/3![Multiple Airlines logo]()
$1,132
This Kiwi.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 9/2112:10 am -
1 stop26h 30m
Thu 10/86:15 am -
1 stop25h 45m
Deal found 7/30![Multiple Airlines logo]()
$1,158
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/1612:10 am -
1 stop26h 30m
Mon 10/56:15 am -
1 stop24h 50m
Deal found 7/31![Multiple Airlines logo]()
$1,174
This Mytrip deal was found by Cheapflights users on 8/4. 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.
Wed 8/2612:45 am -
1 stop25h 55m
Wed 9/26:15 am -
1 stop24h 50m
Deal found 8/4![Multiple Airlines logo]()
$1,197
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/712:45 am -
1 stop25h 55m
Thu 9/176:15 am -
1 stop25h 45m
Deal found 7/31![Multiple Airlines logo]()
$1,201
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 -
1 stop25h 55m
Sun 9/139:40 am -
1 stop23h 00m
Deal found 8/3![Multiple Airlines logo]()
$1,213
This Kiwi.com deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 10/1912:10 am -
2 stops21h 35m
Tue 11/176:20 am -
1 stop25h 45m
Deal found 8/1![Multiple Airlines logo]()
$1,229
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated August 4, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated August 4, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 8/811:55 pm -
1 stop26h 45m
Wed 9/301:10 pm -
1 stop17h 55m
Deal found 7/31![STARLUX Airlines logo]()
$777
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/1812:45 am -
1 stop28h 45m
Sun 8/237:25 am -
1 stop25h 15m
Deal found 8/3![Multiple Airlines logo]()
$991
This oojo deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 8/2611:55 pm -
1 stop22h 05m
Wed 9/91:10 pm -
1 stop17h 55m
Deal found 7/30![STARLUX Airlines logo]()
$774
This Kissandfly.com deal was found by Cheapflights users on 8/4. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:55 pm -
1 stop22h 05m
Fri 9/111:10 pm -
1 stop17h 55m
Deal found 8/4![STARLUX Airlines logo]()
$764
This Vliegwinkel deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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.
Mon 8/3111:55 pm -
1 stop22h 05m
Sun 9/135:50 pm -
1 stop37h 15m
Deal found 7/31![STARLUX Airlines logo]()
$762
This flugladen.de deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop22h 05m
Tue 9/155:50 pm -
1 stop37h 15m
Deal found 7/30![STARLUX Airlines logo]()
$772
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop26h 45m
Mon 9/71:10 pm -
1 stop17h 55m
Deal found 8/1![STARLUX Airlines logo]()
$775
This oojo deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/511:30 pm -
1 stop27h 10m
Thu 9/175:50 pm -
1 stop37h 15m
Deal found 8/1![STARLUX Airlines logo]()
$776
This lol.travel deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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.
Sat 9/56:20 am -
2 stops25h 25m
Sat 9/1911:30 pm -
2 stops37h 10m
Deal found 8/2![Korean Air logo]()
$784
This SmartFares deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:30 pm -
1 stop22h 30m
Fri 9/181:10 pm -
1 stop17h 55m
Deal found 8/1![STARLUX Airlines logo]()
$759
This Bravofly deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Bravofly is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/176:00 am -
2 stops25h 45m
Wed 9/232:35 am -
2 stops28h 44m
Deal found 8/3![Korean Air logo]()
$755
This FlightHub deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/2111:30 pm -
1 stop22h 30m
Tue 10/65:50 pm -
1 stop37h 15m
Deal found 8/3![STARLUX Airlines logo]()
$778
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 August 4, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated August 4, 2026.
This Jettzy deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jettzy is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/29:45 pm -
1 stop23h 50m
Deal found 7/30![STARLUX Airlines logo]()
$376
This SmartFares deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 12/317:00 am -
2 stops23h 30m
Deal found 8/3![Korean Air logo]()
$382
This SmartFares deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 10/1011:30 pm -
1 stop22h 30m
Deal found 8/3![STARLUX Airlines logo]()
$394
This Trip.com deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/311:30 pm -
1 stop22h 30m
Deal found 7/30![STARLUX Airlines logo]()
$398
This CheapOair deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:55 pm -
1 stop22h 05m
Deal found 7/30![STARLUX Airlines logo]()
$400
This SmartFares deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 1/137:00 am -
2 stops23h 30m
Deal found 8/2![Korean Air logo]()
$402
This SmartFares deal was found by Cheapflights users on 7/30. Clicking the “Pick Dates” 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 10/712:10 am -
1 stop26h 10m
Deal found 7/30![China Airlines logo]()
$406
This Mytrip deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 9/2811:30 pm -
1 stop27h 10m
Deal found 7/31![STARLUX Airlines logo]()
$410
This SmartFares deal was found by Cheapflights users on 8/1. Clicking the “Pick Dates” 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 9/211:30 pm -
1 stop22h 30m
Deal found 8/1![STARLUX Airlines logo]()
$412
This oojo deal was found by Cheapflights users on 7/31. Clicking the “Pick Dates” 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 11/49:45 pm -
1 stop23h 50m
Deal found 7/31![STARLUX Airlines logo]()
$413
This Delta deal was found by Cheapflights users on 8/4. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/16:00 am -
2 stops27h 35m
Deal found 8/4![Delta logo]()
$414
This Mytrip deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 8/2811:55 pm -
1 stop22h 05m
Deal found 8/3![STARLUX Airlines logo]()
$415
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 August 4, 2026.
Round-trip from | $755 (Bravofly) |
|---|---|
One-way from | $376 (Jettzy) |
Popular in | December |
Cheapest in | January |
Average price | $931 |
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 August 4, 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
Wed 10/28
10:45 pm-12:35 pm
1 stop23h 50m
Bangkok Suvarnabhumi
Sun 11/1
5:40 pm-3:55 pm
1 stop37h 15m
$809
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 11/14
9:45 pm-4:30 pm
1 stop27h 45m
Bangkok Suvarnabhumi
Mon 12/14
1:45 pm-3:55 pm
1 stop17h 10m
$810
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 10/18
6:01 pm-1:05 am
2 stops41h 04m
Bangkok Suvarnabhumi
Mon 11/9
9:40 am-4:30 pm
2 stops21h 50m
$826
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sat 8/15
6:20 am-11:35 pm
2 stops27h 15m
Bangkok Suvarnabhumi
Tue 8/25
9:40 pm-10:45 pm
2 stops39h 05m
$833
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 1/13
7:00 am-11:20 pm
2 stops25h 20m
Bangkok Suvarnabhumi
Sun 2/7
9:40 am-4:12 pm
2 stops21h 32m
$833
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 1/14
6:00 am-9:30 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Sun 2/7
9:40 am-4:12 pm
2 stops21h 32m
$833
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 8/17
12:45 am-4:20 pm
1 stop25h 35m
Bangkok Suvarnabhumi
Sat 8/29
1:20 pm-6:40 pm
1 stop19h 20m
$913
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Fri 10/16
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Sat 10/31
10:55 am-6:05 pm
1 stop21h 10m
$913
Quickest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 10/20
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Tue 11/3
2:05 pm-5:05 pm
1 stop18h 00m
$913
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 10/20
12:10 am-9:45 am
1 stop19h 35m
Bangkok Suvarnabhumi
Thu 10/29
2:35 am-6:05 pm
1 stop29h 30m
$913
Showing 1-10 of 45 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
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 $765). Flying from Ontario to Bangkok in December is currently the most expensive (average of $1,506). 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?
Airfare is below average for this route at the moment.
Ontario to Bangkok flights typically cost between $768 and $995 in September.The cheapest round-trip price found within the last 5 days was $755 on Korean Air (Sep 17-Sep 23).
How far ahead should I book a flight from Ontario to Bangkok?
Booking 28 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.
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 August 4, 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
9.1
Entertainment
8.7
Boarding
8.9
Food
8.6
Overall
8.8
Comfort
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Entertainment
8.7
Boarding
8.9
Food
8.6
Overall
8.8
Comfort
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Entertainment
8.7
Boarding
8.9
Food
8.6
Overall
8.8
Comfort
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Entertainment
8.7
Boarding
8.9
Food
8.6
Overall
8.8
Comfort
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Entertainment
8.7
Boarding
8.9
Food
8.6
Overall
8.8
Comfort
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
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 August 4, 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 August 4, 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 August 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$666 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$455 | Average$813 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$871 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$840 | FlexibilityNo cancel fee | On-timeN/A |