$385+ Cheap flights from Ontario (ONT) to Bangkok
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 11/9. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Oct 5 — Oct 121
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
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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
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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 September 5, 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 September 5, 2026.
This Expedia deal was found by Cheapflights users on 9/1. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/77:00 am -
2 stops26h 45m
Fri 12/2512:55 am -
2 stops31h 03m
Deal found 9/1![Korean Air logo]()
$803
This lol.travel deal was found by Cheapflights users on 9/2. 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.
Thu 9/1712:10 am -
1 stop26h 10m
Tue 9/2210:50 am -
1 stop21h 10m
Deal found 9/2![China Airlines logo]()
$804
This Ticket deal was found by Cheapflights users on 9/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop22h 00m
Sun 10/410:50 am -
1 stop21h 10m
Deal found 9/1![China Airlines logo]()
$806
This SmartFares deal was found by Cheapflights users on 9/4. 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.
Thu 10/1512:10 am -
1 stop35h 15m
Thu 10/295:50 pm -
1 stop38h 15m
Deal found 9/4![China Airlines logo]()
$810
This Rumbo deal was found by Cheapflights users on 9/3. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:10 am -
1 stop22h 00m
Sat 10/101:20 pm -
1 stop18h 40m
Deal found 9/3![China Airlines logo]()
$812
This lol.travel deal was found by Cheapflights users on 9/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:10 am -
1 stop19h 35m
Mon 9/2110:50 am -
1 stop21h 10m
Deal found 9/1![China Airlines logo]()
$816
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops27h 35m
Sun 9/279:40 pm -
2 stops39h 00m
Deal found 9/3![Korean Air logo]()
$817
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:10 am -
1 stop19h 35m
Fri 10/91:20 pm -
1 stop18h 40m
Deal found 9/3![China Airlines logo]()
$818
This Kissandfly.com deal was found by Cheapflights users on 9/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:10 am -
1 stop19h 35m
Sat 10/102:40 am -
1 stop29h 20m
Deal found 9/2![China Airlines logo]()
$819
This Rumbo deal was found by Cheapflights users on 9/5. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop19h 35m
Fri 9/251:20 pm -
1 stop18h 40m
Deal found 9/5![China Airlines logo]()
$820
This Mytrip deal was found by Cheapflights users on 9/3. 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 9/1812:10 am -
1 stop29h 20m
Wed 9/237:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$986
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 9/612:45 am -
1 stop28h 45m
Mon 9/217:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$990
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 September 5, 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 September 5, 2026.
This Delta deal was found by Cheapflights users on 9/1. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/27:00 am -
2 stops26h 45m
Wed 2/179:40 am -
2 stops28h 03m
Deal found 9/1![Delta logo]()
$823
This Korean Air deal was found by Cheapflights users on 9/1. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:20 am -
2 stops24h 10m
Sun 11/81:05 am -
2 stops31h 14m
Deal found 9/1![Korean Air logo]()
$828
This United Airlines deal was found by Cheapflights users on 9/4. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 1/286:00 am -
2 stops32h 10m
Thu 2/119:10 am -
2 stops28h 56m
Deal found 9/4![United Airlines logo]()
$858
This China Airlines deal was found by Cheapflights users on 9/3. 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
Sat 10/312:05 pm -
1 stop18h 00m
Deal found 9/3![China Airlines logo]()
$862
This Mytrip deal was found by Cheapflights users on 9/3. 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 9/1812:10 am -
1 stop29h 20m
Wed 9/237:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$986
This Delta deal was found by Cheapflights users on 9/3. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/25:03 pm -
2 stops39h 17m
Sun 11/812:55 am -
2 stops31h 24m
Deal found 9/3![Delta logo]()
$828
This Korean Air deal was found by Cheapflights users on 9/2. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/256:20 am -
2 stops41h 05m
Sun 3/219:40 pm -
2 stops33h 37m
Deal found 9/2![Korean Air logo]()
$828
This China Airlines deal was found by Cheapflights users on 9/2. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 am -
1 stop22h 00m
Fri 10/302:05 pm -
1 stop18h 00m
Deal found 9/2![China Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 9/1. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/207:13 pm -
2 stops24h 22m
Wed 9/307:00 am -
2 stops22h 22m
Deal found 9/1![United Airlines logo]()
$867
This Korean Air deal was found by Cheapflights users on 9/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/27:00 am -
2 stops39h 25m
Tue 2/161:05 am -
2 stops36h 38m
Deal found 9/3![Korean Air logo]()
$828
This China Airlines deal was found by Cheapflights users on 9/3. 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 9/1812:10 am -
1 stop26h 10m
Wed 9/301:20 pm -
1 stop18h 40m
Deal found 9/3![China Airlines logo]()
$862
This United Airlines deal was found by Cheapflights users on 8/31. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/136:00 am -
2 stops25h 50m
Fri 11/204:55 pm -
2 stops20h 53m
Deal found 8/31![United Airlines logo]()
$879
This Korean Air deal was found by Cheapflights users on 9/2. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/186:20 am -
2 stops41h 15m
Sun 11/81:05 am -
2 stops31h 14m
Deal found 9/2![Korean Air logo]()
$828
This Mytrip deal was found by Cheapflights users on 8/31. 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.
Sat 9/1912:10 am -
2 stops27h 25m
Sun 9/277:30 am -
2 stops24h 30m
Deal found 8/31![Multiple Airlines logo]()
$1,029
This Mytrip deal was found by Cheapflights users on 9/5. 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.
Sun 9/2012:10 am -
2 stops22h 55m
Fri 9/258:05 am -
2 stops23h 55m
Deal found 9/5![Multiple Airlines logo]()
$1,037
This Mytrip deal was found by Cheapflights users on 9/3. 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 -
1 stop26h 30m
Thu 10/87:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$1,041
This Mytrip deal was found by Cheapflights users on 9/5. 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.
Fri 9/2512:10 am -
1 stop29h 20m
Fri 10/97:25 am -
1 stop24h 35m
Deal found 9/5![Multiple Airlines logo]()
$1,069
This Mytrip deal was found by Cheapflights users on 9/3. 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 10/612:10 am -
1 stop29h 20m
Wed 10/147:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$1,110
This Mytrip deal was found by Cheapflights users on 9/4. 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.
Sat 10/312:10 am -
2 stops27h 25m
Fri 10/97:25 am -
1 stop23h 40m
Deal found 9/4![Multiple Airlines logo]()
$1,178
This Mytrip deal was found by Cheapflights users on 9/5. 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 9/2412:10 am -
1 stop29h 20m
Sat 10/177:25 am -
1 stop23h 40m
Deal found 9/5![Multiple Airlines logo]()
$1,190
This Kiwi.com deal was found by Cheapflights users on 9/3. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2112:10 am -
2 stops21h 35m
Sun 9/277:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$1,213
This Kiwi.com deal was found by Cheapflights users on 9/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/110:50 pm -
2 stops32h 10m
Tue 3/27:45 am -
1 stop23h 10m
Deal found 9/2![Multiple Airlines logo]()
$1,221
This Kiwi.com deal was found by Cheapflights users on 9/1. 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.
Wed 1/1310:50 pm -
2 stops23h 30m
Sat 1/237:45 am -
1 stop23h 10m
Deal found 9/1![Multiple Airlines logo]()
$1,272
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated September 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated September 5, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 9/3. 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.
Sun 9/612:45 am -
1 stop28h 45m
Mon 9/217:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$990
This lol.travel deal was found by Cheapflights users on 9/1. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1612:10 am -
1 stop19h 35m
Mon 9/2110:50 am -
1 stop21h 10m
Deal found 9/1![China Airlines logo]()
$816
This lol.travel deal was found by Cheapflights users on 9/2. 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.
Thu 9/1712:10 am -
1 stop26h 10m
Tue 9/2210:50 am -
1 stop21h 10m
Deal found 9/2![China Airlines logo]()
$804
This Mytrip deal was found by Cheapflights users on 9/3. 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 9/1812:10 am -
1 stop29h 20m
Wed 9/237:25 am -
1 stop24h 35m
Deal found 9/3![Multiple Airlines logo]()
$986
This Ticket deal was found by Cheapflights users on 9/1. 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 Ticket is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop22h 00m
Sun 10/410:50 am -
1 stop21h 10m
Deal found 9/1![China Airlines logo]()
$806
This Rumbo deal was found by Cheapflights users on 9/5. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop19h 35m
Fri 9/251:20 pm -
1 stop18h 40m
Deal found 9/5![China Airlines logo]()
$820
This Expedia deal was found by Cheapflights users on 9/3. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/226:00 am -
2 stops27h 35m
Sun 9/279:40 pm -
2 stops39h 00m
Deal found 9/3![Korean Air logo]()
$817
This Kissandfly.com deal was found by Cheapflights users on 9/3. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:10 am -
1 stop19h 35m
Fri 10/91:20 pm -
1 stop18h 40m
Deal found 9/3![China Airlines logo]()
$818
This Kissandfly.com deal was found by Cheapflights users on 9/2. 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 Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2512:10 am -
1 stop19h 35m
Sat 10/102:40 am -
1 stop29h 20m
Deal found 9/2![China Airlines logo]()
$819
This Rumbo deal was found by Cheapflights users on 9/3. 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 Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:10 am -
1 stop22h 00m
Sat 10/101:20 pm -
1 stop18h 40m
Deal found 9/3![China Airlines logo]()
$812
This SmartFares deal was found by Cheapflights users on 9/4. 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.
Thu 10/1512:10 am -
1 stop35h 15m
Thu 10/295:50 pm -
1 stop38h 15m
Deal found 9/4![China Airlines logo]()
$810
This Delta deal was found by Cheapflights users on 9/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/216:20 am -
2 stops27h 15m
Fri 10/309:40 am -
2 stops21h 32m
Deal found 9/2![Delta logo]()
$822
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 September 5, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated September 5, 2026.
This SmartFares deal was found by Cheapflights users on 9/4. 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.
Mon 11/96:00 am -
2 stops26h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$385
This SmartFares deal was found by Cheapflights users on 8/31. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/146:20 am -
2 stops25h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 8/31![Korean Air logo]()
$402
This Delta deal was found by Cheapflights users on 9/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/167:00 am -
2 stops25h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$415
This Korean Air deal was found by Cheapflights users on 9/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/296:00 am -
2 stops27h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Korean Air logo]()
$417
This Delta deal was found by Cheapflights users on 9/2. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/151:15 pm -
2 stops43h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Delta logo]()
$426
This Delta deal was found by Cheapflights users on 9/4. 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 11/16:00 pm -
2 stops39h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$427
This Delta deal was found by Cheapflights users on 9/4. 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.
Sat 9/126:00 am -
2 stops29h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![Delta logo]()
$429
This Korean Air deal was found by Cheapflights users on 9/5. 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.
Sat 2/207:00 am -
2 stops26h 20m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![Korean Air logo]()
$431
This SmartFares deal was found by Cheapflights users on 9/3. 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 10/1512:10 am -
1 stop19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![China Airlines logo]()
$432
This Korean Air deal was found by Cheapflights users on 9/2. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am -
2 stops25h 05m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![Korean Air logo]()
$442
This SmartFares deal was found by Cheapflights users on 9/5. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop19h 35m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![China Airlines logo]()
$446
This SmartFares deal was found by Cheapflights users on 9/2. 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.
Thu 10/112:10 am -
1 stop35h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/2![China Airlines logo]()
$447
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 September 5, 2026.
Round-trip from | $803 (Expedia) |
|---|---|
One-way from | $385 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $895 |
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 7,457,451 searches. Data last updated September 5, 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 Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Thu 11/12
7:00 am-1:25 pm
2 stops39h 25m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$417
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 11/15
11:57 am-12:45 am
2 stops45h 48m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$426
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 9/13
1:04 pm-11:35 pm
2 stops44h 31m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$426
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 9/27
6:00 am-1:05 am
2 stops29h 05m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$431
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 1/2
7:00 am-12:20 am
2 stops26h 20m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$461
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Thu 1/14
6:00 am-5:10 am
2 stops32h 10m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$467
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Mon 2/22
10:50 pm-9:50 am
1 stop20h 00m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$469
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Tue 2/9
6:00 am-10:50 pm
2 stops25h 50m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$469
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sun 2/21
10:50 pm-9:50 am
1 stop20h 00m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$469
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Mon 11/16
10:50 pm-4:45 pm
1 stop26h 55m
Bangkok Suvarnabhumi
Wed 12/31
12:00 am-9:00 am
Nonstop0h 00m
$469
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 $1,486). 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 typical for this route at the moment.
Ontario to Bangkok flights typically cost between $768 and $1,001 in December.The cheapest round-trip price found within the last 5 days was $803 on Korean Air (Dec 7-Dec 25).
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 September 5, 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.
Boarding
8.8
Overall
8.7
Comfort
8.8
Crew
9.1
Entertainment
8.7
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Overall
8.7
Comfort
8.8
Crew
9.1
Entertainment
8.7
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Overall
8.7
Comfort
8.8
Crew
9.1
Entertainment
8.7
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Overall
8.7
Comfort
8.8
Crew
9.1
Entertainment
8.7
Food
8.5
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Boarding
8.8
Overall
8.7
Comfort
8.8
Crew
9.1
Entertainment
8.7
Food
8.5
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.
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Alternative routes for Ontario to Bangkok
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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 September 5, 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 September 5, 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 7,457,451 searches. Data last updated September 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$427 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$455 | Average$813 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$718 | Average$893 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$731 | Average$837 | FlexibilityNo cancel fee | On-timeN/A |