$392+ 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 11/10. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Sep 17 — Sep 241
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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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 18, 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 18, 2026.
This eDestinos deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure eDestinos is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
2 stops29h 05m
Wed 10/149:50 am -
2 stops45h 22m
Deal found 8/15![Korean Air logo]()
$731
This SmartFares deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm -
1 stop27h 10m
Tue 10/205:50 pm -
1 stop37h 15m
Deal found 8/16![STARLUX Airlines logo]()
$760
This Globehunters deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:30 pm -
1 stop22h 30m
Sun 10/115:50 pm -
1 stop37h 15m
Deal found 8/13![STARLUX Airlines logo]()
$761
This Vliegwinkel deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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.
Sat 9/1911:30 pm -
1 stop22h 30m
Sat 10/31:10 pm -
1 stop17h 55m
Deal found 8/17![STARLUX Airlines logo]()
$763
This Gotogate deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:45 pm -
1 stop27h 45m
Wed 1/271:45 pm -
1 stop17h 10m
Deal found 8/15![STARLUX Airlines logo]()
$769
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/2611:30 pm -
1 stop27h 10m
Mon 10/121:10 pm -
1 stop17h 55m
Deal found 8/18![STARLUX Airlines logo]()
$776
This Gotogate deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:55 pm -
1 stop22h 05m
Tue 9/225:50 pm -
1 stop37h 15m
Deal found 8/16![STARLUX Airlines logo]()
$778
This Justfly.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop27h 10m
Thu 9/175:50 pm -
1 stop37h 15m
Deal found 8/17![STARLUX Airlines logo]()
$779
This Trip.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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.
Wed 9/211:30 pm -
1 stop27h 10m
Sun 9/65:50 pm -
1 stop37h 15m
Deal found 8/17![STARLUX Airlines logo]()
$791
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:55 pm -
1 stop26h 45m
Sat 9/191:10 pm -
1 stop17h 55m
Deal found 8/15![STARLUX Airlines logo]()
$796
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 am -
1 stop25h 55m
Sun 9/137:25 am -
1 stop25h 15m
Deal found 8/14![Multiple Airlines logo]()
$979
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am -
1 stop25h 55m
Sun 9/207:25 am -
1 stop24h 35m
Deal found 8/14![Multiple Airlines logo]()
$980
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 18, 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 18, 2026.
This STARLUX Airlines deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop27h 10m
Sat 9/51:10 pm -
1 stop17h 55m
Deal found 8/14![STARLUX Airlines logo]()
$810
This Delta deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/107:00 am -
2 stops26h 45m
Wed 3/311:15 pm -
2 stops38h 28m
Deal found 8/15![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:20 am -
2 stops24h 10m
Sun 11/2211:15 pm -
2 stops32h 58m
Deal found 8/14![Korean Air logo]()
$828
This China Airlines deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:10 am -
1 stop19h 35m
Mon 10/510:50 am -
1 stop21h 10m
Deal found 8/13![China Airlines logo]()
$878
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 am -
1 stop25h 55m
Sun 9/137:25 am -
1 stop25h 15m
Deal found 8/14![Multiple Airlines logo]()
$979
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/296:20 am -
2 stops28h 25m
Mon 11/99:40 am -
2 stops22h 33m
Deal found 8/16![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:20 am -
2 stops40h 05m
Sun 11/1511:15 pm -
2 stops32h 58m
Deal found 8/16![Korean Air logo]()
$839
This Delta deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:20 am -
2 stops25h 25m
Mon 9/142:35 am -
2 stops35h 12m
Deal found 8/13![Delta logo]()
$822
This Korean Air deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 11/76:20 am -
2 stops24h 10m
Sun 11/1511:15 pm -
2 stops32h 58m
Deal found 8/17![Korean Air logo]()
$839
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am -
1 stop25h 55m
Sun 9/207:25 am -
1 stop24h 35m
Deal found 8/14![Multiple Airlines logo]()
$980
This Delta deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:01 pm -
2 stops39h 44m
Mon 11/99:40 am -
2 stops29h 18m
Deal found 8/16![Delta logo]()
$827
This Korean Air deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/307:00 am -
2 stops26h 45m
Mon 2/811:15 pm -
2 stops38h 28m
Deal found 8/14![Korean Air logo]()
$840
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:10 am -
1 stop26h 30m
Mon 10/196:15 am -
1 stop25h 45m
Deal found 8/15![Multiple Airlines logo]()
$996
This Delta deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/56:20 am -
2 stops27h 25m
Sat 11/219:40 am -
2 stops28h 20m
Deal found 8/14![Delta logo]()
$834
This Mytrip deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:10 am -
1 stop29h 20m
Mon 10/196:15 am -
1 stop25h 45m
Deal found 8/16![Multiple Airlines logo]()
$999
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 9/56:20 am -
2 stops27h 15m
Sat 9/199:50 am -
2 stops26h 50m
Deal found 8/17![Delta logo]()
$846
This Mytrip deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:10 am -
1 stop29h 20m
Sat 10/37:25 am -
1 stop24h 35m
Deal found 8/16![Multiple Airlines logo]()
$1,000
This Mytrip deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:10 am -
2 stops32h 30m
Fri 10/26:40 am -
2 stops25h 20m
Deal found 8/16![Multiple Airlines logo]()
$1,028
This Mytrip deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
2 stops22h 55m
Thu 10/16:30 am -
2 stops25h 30m
Deal found 8/15![Multiple Airlines logo]()
$1,039
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:10 am -
2 stops27h 25m
Tue 10/137:30 am -
2 stops24h 30m
Deal found 8/13![Multiple Airlines logo]()
$1,041
This Mytrip deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 -
2 stops32h 55m
Mon 9/287:30 am -
2 stops24h 30m
Deal found 8/17![Multiple Airlines logo]()
$1,049
This Mytrip deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 am -
2 stops32h 30m
Sun 10/256:55 am -
2 stops25h 10m
Deal found 8/13![Multiple Airlines logo]()
$1,057
Last-minute flights from Ontario to BangkokDiscover last-minute flight deals from Ontario to Bangkok. Data last updated August 18, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Bangkok. Data last updated August 18, 2026 and is based on user searches.
This Trip.com deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:55 pm -
1 stop26h 45m
Thu 9/175:50 pm -
1 stop37h 15m
Deal found 8/16![STARLUX Airlines logo]()
$797
This Trip.com deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1911:55 pm -
1 stop26h 45m
Sat 9/191:10 pm -
1 stop17h 55m
Deal found 8/15![STARLUX Airlines logo]()
$796
This Gotogate deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:55 pm -
1 stop22h 05m
Tue 9/225:50 pm -
1 stop37h 15m
Deal found 8/16![STARLUX Airlines logo]()
$778
This FlightHub deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2411:55 pm -
1 stop26h 45m
Mon 8/311:10 pm -
1 stop18h 30m
Deal found 8/13![STARLUX Airlines logo]()
$799
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 am -
1 stop25h 55m
Sun 9/137:25 am -
1 stop25h 15m
Deal found 8/14![Multiple Airlines logo]()
$979
This oojo deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop27h 10m
Wed 9/91:10 pm -
1 stop17h 55m
Deal found 8/16![STARLUX Airlines logo]()
$779
This Trip.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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.
Wed 9/211:30 pm -
1 stop27h 10m
Sun 9/65:50 pm -
1 stop37h 15m
Deal found 8/17![STARLUX Airlines logo]()
$791
This KAYAK deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop22h 30m
Mon 9/71:10 pm -
1 stop17h 55m
Deal found 8/14![STARLUX Airlines logo]()
$800
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am -
1 stop25h 55m
Sun 9/207:25 am -
1 stop24h 35m
Deal found 8/14![Multiple Airlines logo]()
$980
This Globehunters deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:30 pm -
1 stop22h 30m
Sun 10/115:50 pm -
1 stop37h 15m
Deal found 8/13![STARLUX Airlines logo]()
$761
This Vliegwinkel deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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.
Sat 9/1911:30 pm -
1 stop22h 30m
Sat 10/31:10 pm -
1 stop17h 55m
Deal found 8/17![STARLUX Airlines logo]()
$763
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” 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 9/2611:30 pm -
1 stop27h 10m
Mon 10/121:10 pm -
1 stop17h 55m
Deal found 8/18![STARLUX Airlines logo]()
$776
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 18, 2026.
Search for one-way flight options from Ontario to Bangkok. Find affordable one-way fares based on user searches. Data last updated August 18, 2026.
This SmartFares deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/107:04 am -
2 stops25h 16m
Deal found 8/16![Delta logo]()
$392
This SmartFares deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:00 am -
2 stops25h 45m
Deal found 8/14![Korean Air logo]()
$402
This SmartFares deal was found by Cheapflights users on 8/16. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:45 pm -
1 stop23h 50m
Deal found 8/16![STARLUX Airlines logo]()
$406
This SmartFares deal was found by Cheapflights users on 8/13. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop22h 30m
Deal found 8/13![STARLUX Airlines logo]()
$407
This SmartFares deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:30 pm -
1 stop27h 10m
Deal found 8/14![STARLUX Airlines logo]()
$412
This Delta deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 2/116:00 am -
2 stops40h 25m
Deal found 8/17![Delta logo]()
$414
This oojo deal was found by Cheapflights users on 8/15. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/139:45 pm -
1 stop27h 45m
Deal found 8/15![STARLUX Airlines logo]()
$416
This Korean Air deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” 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 10/206:20 am -
2 stops25h 25m
Deal found 8/17![Korean Air logo]()
$417
This Justfly.com deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/911:30 pm -
1 stop22h 30m
Deal found 8/17![STARLUX Airlines logo]()
$419
This Jetabroad deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/279:45 pm -
1 stop23h 50m
Deal found 8/17![STARLUX Airlines logo]()
$420
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:30 pm -
1 stop23h 05m
Deal found 8/14![STARLUX Airlines logo]()
$423
This Mytrip deal was found by Cheapflights users on 8/14. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1911:30 pm -
1 stop22h 30m
Deal found 8/14![STARLUX Airlines logo]()
$424
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 18, 2026.
Round-trip from | $731 (eDestinos) |
|---|---|
One-way from | $392 (SmartFares) |
Popular in | December |
Cheapest in | January |
Average price | $976 |
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 18, 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
Wed 9/2
11:30 pm-4:40 pm
1 stop27h 10m
Bangkok Suvarnabhumi
Sat 9/5
1:10 pm-5:05 pm
1 stop17h 55m
$810
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Wed 2/10
7:00 am-12:45 am
2 stops26h 45m
Bangkok Suvarnabhumi
Wed 3/3
11:15 pm-10:43 pm
2 stops38h 28m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Thu 10/29
6:20 am-12:45 am
2 stops28h 25m
Bangkok Suvarnabhumi
Mon 11/9
9:40 am-5:13 pm
2 stops22h 33m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Wed 9/2
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Mon 9/14
2:35 am-11:47 pm
2 stops35h 12m
$822
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Mon 11/2
6:01 pm-12:45 am
2 stops39h 44m
Bangkok Suvarnabhumi
Mon 11/9
9:40 am-11:58 pm
2 stops29h 18m
$827
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Thu 11/5
6:20 am-9:30 pm
2 stops24h 10m
Bangkok Suvarnabhumi
Sun 11/22
11:15 pm-5:13 pm
2 stops32h 58m
$828
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Thu 11/5
6:20 am-12:45 am
2 stops27h 25m
Bangkok Suvarnabhumi
Sat 11/21
9:40 am-11:00 pm
2 stops28h 20m
$834
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Fri 11/6
6:20 am-1:25 pm
2 stops40h 05m
Bangkok Suvarnabhumi
Sun 11/15
11:15 pm-5:13 pm
2 stops32h 58m
$839
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 11/7
6:20 am-9:30 pm
2 stops24h 10m
Bangkok Suvarnabhumi
Sun 11/15
11:15 pm-5:13 pm
2 stops32h 58m
$839
OntarioBangkok
ONT Ontario - BKK Bangkok Suvarnabhumi
ONTBKK
Ontario
Sat 1/30
7:00 am-12:45 am
2 stops26h 45m
Bangkok Suvarnabhumi
Mon 2/8
11:15 pm-10:43 pm
2 stops38h 28m
$840
Showing 1-10 of 41 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 $1,494). 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 $862 and $1,100 in October.The cheapest round-trip price found within the last 5 days was $731 on Korean Air (Oct 4-Oct 14).
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 18, 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
Food
8.6
Entertainment
8.7
Comfort
8.8
Boarding
8.9
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Food
8.6
Entertainment
8.7
Comfort
8.8
Boarding
8.9
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Food
8.6
Entertainment
8.7
Comfort
8.8
Boarding
8.9
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Food
8.6
Entertainment
8.7
Comfort
8.8
Boarding
8.9
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Crew
9.1
Food
8.6
Entertainment
8.7
Comfort
8.8
Boarding
8.9
Overall
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.
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Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
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Complete your trip
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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 18, 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 18, 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 18, 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$883 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$731 | Average$842 | FlexibilityNo cancel fee | On-timeN/A |