$517+ Cheap flights from Ontario (ONT) to Thailand
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/14. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jun 1 — Jun 81
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Thailand 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 ThailandExplore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 2, 2026.
Explore the most affordable flight options available from Ontario to Thailand. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 2, 2026.
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
ONT
- BKK
2 stops24h 45m
Delta
Sat 5/239:40 pm
BKK
- ONT
2 stops33h 30m
Delta
Deal found 4/29![Delta logo]()
$940
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/47:00 am
ONT
- BKK
2 stops24h 45m
Delta
Thu 12/39:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 4/29![Delta logo]()
$952
This Delta deal was found by Cheapflights users on 5/1. 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.
Mon 11/166:00 am
ONT
- CNX
2 stops25h 55m
Delta
Wed 12/212:15 am
CNX
- ONT
2 stops37h 28m
Delta
Deal found 5/1![Delta logo]()
$952
This Korean Air deal was found by Cheapflights users on 5/1. 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.
Tue 11/177:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Mon 11/3011:15 pm
BKK
- ONT
2 stops33h 02m
Korean Air
Deal found 5/1![Korean Air logo]()
$957
This Korean Air deal was found by Cheapflights users on 5/1. 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.
Sun 11/157:00 am
ONT
- CNX
2 stops24h 55m
Korean Air
Wed 12/212:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 5/1![Korean Air logo]()
$957
This Korean Air deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 11/307:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Fri 12/1112:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 4/29![Korean Air logo]()
$958
This Korean Air deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 10/287:00 am
ONT
- CNX
2 stops25h 55m
Korean Air
Sat 10/3112:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 4/28![Korean Air logo]()
$958
This Delta deal was found by Cheapflights users on 5/1. 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.
Wed 11/1811:55 am
ONT
- BKK
2 stops66h 35m
Delta
Wed 12/29:40 am
BKK
- ONT
2 stops22h 37m
Delta
Deal found 5/1![Delta logo]()
$959
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/57:00 am
ONT
- BKK
2 stops26h 35m
Delta
Sat 5/239:40 pm
BKK
- ONT
2 stops33h 30m
Delta
Deal found 4/28![Delta logo]()
$965
This lol.travel deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 11/257:00 am
ONT
- BKK
2 stops23h 30m
Korean Air
Wed 12/1612:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 4/27![Korean Air logo]()
$969
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Mon 5/119:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 4/30![Korean Air logo]()
$971
This oojo deal was found by Cheapflights users on 4/30. 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.
Thu 10/226:58 pm
ONT
- HKT
2 stops49h 12m
Singapore Airlines
Mon 10/2610:05 am
HKT
- ONT
2 stops42h 42m
Singapore Airlines
Deal found 4/30![Singapore Airlines logo]()
$971
Best flights from Ontario to ThailandDiscover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
Discover carefully curated flight deals from Ontario to Thailand that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 2, 2026.
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 8/307:00 am
ONT
- BKK
2 stops26h 35m
Delta
Mon 9/219:40 pm
BKK
- ONT
2 stops40h 04m
Delta
Deal found 4/29![Delta logo]()
$952
This Korean Air deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 10/287:00 am
ONT
- CNX
2 stops25h 55m
Korean Air
Sat 10/3112:15 am
CNX
- ONT
2 stops32h 02m
Korean Air
Deal found 4/28![Korean Air logo]()
$958
This Korean Air deal was found by Cheapflights users on 5/1. 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.
Thu 9/107:00 am
ONT
- HKT
2 stops25h 10m
Multiple Airlines
Wed 9/3011:25 pm
HKT
- ONT
2 stops31h 51m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,106
This China Airlines deal was found by Cheapflights users on 5/1. 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.
Wed 10/2811:50 pm
ONT
- CNX
1 stop20h 35m
China Airlines
Sun 11/111:25 am
CNX
- ONT
1 stop20h 25m
China Airlines
Deal found 5/1![China Airlines logo]()
$1,162
This Qatar Airways deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/1312:00 pm
ONT
- BKK
2 stops28h 20m
Qatar Airways
Sat 10/242:00 am
BKK
- ONT
2 stops30h 13m
Qatar Airways
Deal found 4/27![Qatar Airways logo]()
$1,267
This United Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 8/76:00 am
ONT
- BKK
2 stops37h 35m
United Airlines
Sun 8/167:00 am
BKK
- ONT
2 stops43h 12m
United Airlines
Deal found 4/29![United Airlines logo]()
$1,275
This Delta deal was found by Cheapflights users on 5/1. 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.
Mon 8/316:00 am
ONT
- BKK
2 stops25h 45m
Delta
Wed 9/239:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 5/1![Delta logo]()
$952
This Korean Air deal was found by Cheapflights users on 5/1. 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 8/317:00 am
ONT
- BKK
2 stops28h 05m
Korean Air
Fri 9/49:50 am
BKK
- ONT
2 stops50h 50m
Korean Air
Deal found 5/1![Korean Air logo]()
$982
This Korean Air deal was found by Cheapflights users on 5/1. 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.
Thu 9/107:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Mon 9/1411:25 pm
HKT
- ONT
2 stops31h 51m
Korean Air
Deal found 5/1![Korean Air logo]()
$1,057
This China Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Thu 9/1012:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Sat 9/1911:20 am
CNX
- ONT
1 stop20h 40m
China Airlines
Deal found 4/28![China Airlines logo]()
$1,194
This Korean Air deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 9/217:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Tue 9/299:50 am
BKK
- ONT
2 stops26h 50m
Korean Air
Deal found 4/27![Korean Air logo]()
$1,058
This FlightHub deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:45 am
ONT
- KBV
2 stops42h 00m
Multiple Airlines
Mon 9/289:25 am
KBV
- ONT
2 stops22h 35m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$1,336
This China Airlines deal was found by Cheapflights users on 5/1. 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.
Tue 5/1212:10 am
ONT
- BKK
1 stop26h 10m
China Airlines
Sat 5/301:20 pm
BKK
- ONT
1 stop18h 40m
China Airlines
Deal found 5/1![China Airlines logo]()
$1,221
This United Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 8/76:00 am
ONT
- BKK
2 stops37h 35m
United Airlines
Sat 8/229:35 am
BKK
- ONT
2 stops27h 23m
United Airlines
Deal found 4/28![United Airlines logo]()
$1,402
This Korean Air deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/67:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Thu 9/1011:25 pm
HKT
- ONT
2 stops37h 15m
Korean Air
Deal found 4/28![Korean Air logo]()
$1,058
This Mytrip deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 8/512:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Sun 8/167:25 am
DMK
- ONT
1 stop25h 15m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,364
This Delta deal was found by Cheapflights users on 4/30. 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.
Fri 5/295:50 pm
ONT
- BKK
2 stops41h 15m
Delta
Sun 6/149:40 pm
BKK
- ONT
2 stops39h 01m
Delta
Deal found 4/30![Delta logo]()
$1,368
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/187:00 am
ONT
- HKT
2 stops25h 10m
Korean Air
Fri 8/2811:25 pm
HKT
- ONT
2 stops31h 51m
Korean Air
Deal found 4/30![Korean Air logo]()
$1,058
This China Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/712:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Tue 9/2210:10 am
CNX
- ONT
2 stops21h 50m
China Airlines
Deal found 4/28![China Airlines logo]()
$1,335
This Mytrip deal was found by Cheapflights users on 5/1. 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 5/1112:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Mon 6/16:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,371
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/296:45 am
ONT
- BKK
2 stops26h 50m
Delta
Thu 6/112:35 am
BKK
- ONT
2 stops28h 44m
Delta
Deal found 4/29![Delta logo]()
$1,385
This China Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 9/412:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Sun 9/202:35 pm
CNX
- ONT
2 stops41h 25m
China Airlines
Deal found 4/28![China Airlines logo]()
$1,339
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:00 am
ONT
- HKT
2 stops26h 10m
Korean Air
Thu 8/2711:25 pm
HKT
- ONT
2 stops38h 19m
Korean Air
Deal found 4/30![Korean Air logo]()
$1,108
This Delta deal was found by Cheapflights users on 5/1. 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.
Mon 6/296:20 am
ONT
- BKK
2 stops27h 15m
Delta
Thu 7/99:50 am
BKK
- ONT
2 stops50h 53m
Delta
Deal found 5/1![Delta logo]()
$1,397
This China Airlines deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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.
Wed 9/912:45 am
ONT
- CNX
1 stop19h 35m
China Airlines
Sun 9/2010:10 am
CNX
- ONT
2 stops21h 50m
China Airlines
Deal found 4/28![China Airlines logo]()
$1,339
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/166:00 am
ONT
- HKT
2 stops26h 10m
Korean Air
Fri 8/2811:25 pm
HKT
- ONT
2 stops31h 51m
Korean Air
Deal found 4/30![Korean Air logo]()
$1,108
This Mytrip deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” 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 8/212:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Wed 8/126:15 am
DMK
- ONT
1 stop26h 25m
Multiple Airlines
Deal found 4/27![Multiple Airlines logo]()
$1,479
This Mytrip deal was found by Cheapflights users on 5/2. 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.
Thu 10/112:10 am
ONT
- DMK
1 stop29h 20m
Multiple Airlines
Fri 10/96:15 am
DMK
- ONT
1 stop25h 45m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$1,508
This Korean Air deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/196:45 am
ONT
- HKT
2 stops25h 25m
Korean Air
Mon 6/111:25 pm
HKT
- ONT
2 stops31h 43m
Korean Air
Deal found 4/29![Korean Air logo]()
$1,231
This Mytrip deal was found by Cheapflights users on 5/2. 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.
Wed 7/1512:45 am
ONT
- DMK
1 stop28h 45m
Multiple Airlines
Mon 7/207:25 am
DMK
- ONT
1 stop25h 15m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$1,529
Last-minute flights from Ontario to ThailandDiscover last-minute flight deals from Ontario to Thailand. Data last updated May 2, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Thailand. Data last updated May 2, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/17:00 am
ONT
- BKK
2 stops24h 45m
Delta
Sat 5/239:40 pm
BKK
- ONT
2 stops33h 30m
Delta
Deal found 4/29![Delta logo]()
$940
This Korean Air deal was found by Cheapflights users on 5/1. 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.
Sun 5/37:00 am
ONT
- BKK
2 stops40h 35m
Korean Air
Mon 5/119:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 5/1![Korean Air logo]()
$1,020
This Vliegwinkel deal was found by Cheapflights users on 5/1. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:10 pm
ONT
- BKK
1 stop22h 50m
STARLUX Airlines
Sun 5/175:50 pm
BKK
- ONT
1 stop37h 15m
STARLUX Airlines
Deal found 5/1![STARLUX Airlines logo]()
$1,017
This Delta deal was found by Cheapflights users on 4/30. 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.
Mon 5/411:53 am
ONT
- BKK
2 stops43h 52m
Delta
Sat 5/239:40 pm
BKK
- ONT
2 stops33h 30m
Delta
Deal found 4/30![Delta logo]()
$1,023
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/57:00 am
ONT
- BKK
2 stops26h 35m
Delta
Sat 5/239:40 pm
BKK
- ONT
2 stops33h 30m
Delta
Deal found 4/28![Delta logo]()
$965
This Korean Air deal was found by Cheapflights users on 4/30. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/57:00 am
ONT
- BKK
2 stops24h 45m
Korean Air
Mon 5/119:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 4/30![Korean Air logo]()
$971
This Delta deal was found by Cheapflights users on 4/30. 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.
Tue 5/57:00 am
ONT
- BKK
2 stops26h 35m
Delta
Tue 5/199:50 am
BKK
- ONT
2 stops21h 20m
Delta
Deal found 4/30![Delta logo]()
$990
This Mytrip deal was found by Cheapflights users on 5/1. 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.
Tue 5/512:10 am
ONT
- DMK
2 stops24h 00m
Multiple Airlines
Wed 5/136:40 am
DMK
- ONT
2 stops25h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,010
This Korean Air deal was found by Cheapflights users on 5/1. 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 5/116:45 am
ONT
- BKK
2 stops25h 00m
Korean Air
Sun 5/312:35 am
BKK
- ONT
2 stops28h 33m
Korean Air
Deal found 5/1![Korean Air logo]()
$995
This Korean Air deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/116:45 am
ONT
- BKK
2 stops25h 00m
Korean Air
Mon 5/189:40 pm
BKK
- ONT
2 stops33h 30m
Korean Air
Deal found 4/29![Korean Air logo]()
$996
This CrystalTravel deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CrystalTravel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/1111:10 pm
ONT
- BKK
1 stop27h 30m
STARLUX Airlines
Mon 6/81:10 pm
BKK
- ONT
1 stop17h 55m
STARLUX Airlines
Deal found 4/27![STARLUX Airlines logo]()
$1,005
This Mytrip deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 5/1212:10 am
ONT
- DMK
2 stops32h 55m
Multiple Airlines
Sun 5/177:30 am
DMK
- ONT
2 stops24h 30m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$1,077
One-way flights from Ontario to ThailandSearch for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
Search for one-way flight options from Ontario to Thailand. Find affordable one-way fares based on user searches. Data last updated May 2, 2026.
This oojo deal was found by Cheapflights users on 4/30. 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.
Mon 9/146:00 am
ONT
- BKK
2 stops27h 20m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$517
This oojo deal was found by Cheapflights users on 5/1. 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.
Thu 9/246:00 am
ONT
- BKK
2 stops27h 20m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$533
This IEagle deal was found by Cheapflights users on 5/1. 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 IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/122:05 pm
ONT
- BKK
2 stops28h 50m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$534
This Kiwi.com deal was found by Cheapflights users on 4/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/68:33 pm
ONT
- BKK
2 stops59h 07m
Multiple Airlines
Deal found 4/26![Multiple Airlines logo]()
$546
This Fareboom deal was found by Cheapflights users on 4/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Fareboom is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/185:26 pm
ONT
- BKK
2 stops25h 29m
Philippine Airlines
Deal found 4/27![Philippine Airlines logo]()
$549
This Delta deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 8/176:00 am
ONT
- BKK
2 stops41h 35m
Delta
Deal found 4/28![Delta logo]()
$563
This Korean Air deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/116:45 am
ONT
- BKK
2 stops26h 50m
Korean Air
Deal found 4/29![Korean Air logo]()
$566
This SmartFares deal was found by Cheapflights users on 5/1. 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 8/512:45 am
ONT
- BKK
1 stop34h 40m
China Airlines
Deal found 5/1![China Airlines logo]()
$569
This Gotogate deal was found by Cheapflights users on 4/30. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:45 am
ONT
- BKK
1 stop25h 35m
China Airlines
Deal found 4/30![China Airlines logo]()
$575
This Delta deal was found by Cheapflights users on 5/1. 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.
Sun 8/95:16 pm
ONT
- BKK
2 stops40h 19m
Delta
Deal found 5/1![Delta logo]()
$576
This oojo deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” 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 5/811:10 pm
ONT
- BKK
1 stop22h 50m
STARLUX Airlines
Deal found 4/29![STARLUX Airlines logo]()
$577
This Kiwi.com deal was found by Cheapflights users on 4/28. Clicking the “Pick Dates” 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 8/173:40 pm
ONT
- BKK
3 stops41h 00m
Multiple Airlines
Deal found 4/28![Multiple Airlines logo]()
$580
Find flight deals from Ontario to Thailand
Keep the following information in mind while searching for Ontario to Thailand flight deals. Data was last updated May 2, 2026.
Round-trip from | $952 (Delta) |
|---|---|
One-way from | $517 (oojo) |
Popular in | December |
Cheapest in | September |
Average price | $847 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Thailand that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 2, 2026.
Use the filters below to find and compare flights from Ontario to Thailand that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 8/30
7:00 am-11:35 pm
2 stops26h 35m
Bangkok Suvarnabhumi
Mon 9/21
9:40 pm-11:44 pm
2 stops40h 04m
$952
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 8/31
6:00 am-9:45 pm
2 stops25h 45m
Bangkok Suvarnabhumi
Wed 9/23
9:50 am-10:40 pm
2 stops26h 50m
$952
OntarioChiang Mai
ONT - CNX
ONTCNX
Ontario
Wed 10/28
7:00 am-10:55 pm
2 stops25h 55m
Chiang Mai
Sat 10/31
12:15 am-6:17 pm
2 stops32h 02m
$958
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 8/31
7:00 am-1:05 am
2 stops28h 05m
Bangkok Suvarnabhumi
Fri 9/4
9:50 am-10:40 pm
2 stops50h 50m
$982
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Thu 9/10
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Mon 9/14
11:25 pm-5:16 pm
2 stops31h 51m
$1,057
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 9/21
7:00 am-9:45 pm
2 stops24h 45m
Bangkok Suvarnabhumi
Tue 9/29
9:50 am-10:40 pm
2 stops26h 50m
$1,058
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Sun 9/6
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Thu 9/10
11:25 pm-10:40 pm
2 stops37h 15m
$1,058
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Tue 8/18
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Fri 8/28
11:25 pm-5:16 pm
2 stops31h 51m
$1,058
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Thu 9/10
7:00 am-10:10 pm
2 stops25h 10m
Phuket City
Wed 9/30
11:25 pm-5:16 pm
2 stops31h 51m
$1,106
OntarioPhuket City
ONT - HKT
ONTHKT
Ontario
Sun 8/16
6:00 am-10:10 pm
2 stops26h 10m
Phuket City
Thu 8/27
11:25 pm-11:44 pm
2 stops38h 19m
$1,108
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Thailand
Have a flexible travel schedule? Discover the best time to fly to Thailand from Ontario with our price prediction graph.
ONT-BKK
ONT-CNX
ONT-HKT
ONT-DMK
ONT-KBV
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 Thailand
ONT-TH0
ONT-BKK
ONT-CNX
ONT-HKT
ONT-DMK
How far ahead should I book a flight from Ontario to Thailand?
The best time to book flights from Ontario to Thailand is 81 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Ontario to Thailand?
Currently, July is the cheapest month in which you can book a flight from Ontario to Thailand (average of $457). Flying from Ontario to Thailand in June is currently the most expensive (average of $906). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
Reviews of airlines servicing Thailand
Get insights into the airlines that provide service to Thailand. 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 Thailand. Reviews last updated May 2, 2026.
Peruse reviews from past customers who have flown with STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Thailand to help guide your decision. You can also see how each airline stacks up in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
8.6
Overall
8.9
Boarding
8.9
Crew
9.2
Entertainment
8.8
Comfort
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Food
8.6
Overall
8.9
Boarding
8.9
Crew
9.2
Entertainment
8.8
Comfort
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Food
8.6
Overall
8.9
Boarding
8.9
Crew
9.2
Entertainment
8.8
Comfort
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Food
8.6
Overall
8.9
Boarding
8.9
Crew
9.2
Entertainment
8.8
Comfort
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Food
8.6
Overall
8.9
Boarding
8.9
Crew
9.2
Entertainment
8.8
Comfort
8.9
Reviews
1 / 12
10.0
Excellentember j,Apr 2026
TPE - ONT
Related info for your journey
Find useful and relevant information for your journey from Ontario to Thailand. 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 Thailand
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Thailand by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Thailand by cabin class
Find flights from Ontario to Thailand, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Thailand flights
Browse other Ontario and Thailand flight options. Last updated on May 2, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Thailand flights
Consider these flights traveling from Ontario to Thailand.
Fly to Thailand regions
Consider these flights traveling to Thailand regions.
Top 4 airlines flying from Ontario to Thailand
Discover the top 4 airlines that operate flights from Ontario to Thailand. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$660 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$616 | Average$783 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$717 | Average$1,159 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$763 | Average$819 | FlexibilityNo cancel fee | On-timeN/A |