$379+ Cheap flights from Ontario (ONT) to Asia
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 7/29. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — BKK
Jul 24 — Jul 311
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Asia 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 AsiaExplore the most affordable flight options available from Ontario to Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
Explore the most affordable flight options available from Ontario to Asia. Find the lowest fares from popular airlines and budget airlines, with prices last updated on June 24, 2026.
This Korean Air deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 11/167:00 am
ONT
- BKK
2 stops39h 25m
Korean Air
Mon 12/2111:15 pm
BKK
- ONT
2 stops32h 41m
Korean Air
Deal found 6/21![Korean Air logo]()
$837
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/286:20 am
ONT
- BKK
2 stops25h 25m
Delta
Tue 10/139:40 pm
BKK
- ONT
2 stops33h 37m
Delta
Deal found 6/22![Delta logo]()
$839
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 10/227:00 am
ONT
- BKK
2 stops28h 05m
Delta
Sun 11/111:15 pm
BKK
- ONT
2 stops38h 28m
Delta
Deal found 6/20![Delta logo]()
$840
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/65:05 pm
ONT
- BKK
2 stops40h 30m
Delta
Mon 9/142:35 am
BKK
- ONT
2 stops34h 05m
Delta
Deal found 6/22![Delta logo]()
$845
This lol.travel deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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.
Mon 8/106:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Tue 8/2511:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 6/19![Korean Air logo]()
$849
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/276:20 am
ONT
- BKK
2 stops25h 25m
Delta
Thu 9/39:50 am
BKK
- ONT
2 stops27h 44m
Delta
Deal found 6/19![Delta logo]()
$867
This Korean Air deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/66:20 am
ONT
- BKK
2 stops28h 45m
Korean Air
Wed 8/262:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 6/19![Korean Air logo]()
$872
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 11/141:00 pm
ONT
- BKK
2 stops41h 30m
Delta
Thu 12/249:40 am
BKK
- ONT
2 stops40h 36m
Delta
Deal found 6/21![Delta logo]()
$882
This Korean Air deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 11/167:00 am
ONT
- BKK
2 stops25h 20m
Korean Air
Thu 12/249:30 pm
BKK
- ONT
2 stops34h 26m
Korean Air
Deal found 6/21![Korean Air logo]()
$887
This lol.travel deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/306:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 10/2812:55 am
BKK
- ONT
2 stops30h 22m
Korean Air
Deal found 6/21![Korean Air logo]()
$888
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/286:00 am
ONT
- BKK
2 stops29h 05m
Delta
Tue 9/159:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 6/23![Delta logo]()
$889
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 9/76:20 am
ONT
- BKK
2 stops25h 25m
Delta
Tue 9/229:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 6/19![Delta logo]()
$890
Best flights from Ontario to AsiaDiscover carefully curated flight deals from Ontario to Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
Discover carefully curated flight deals from Ontario to Asia that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated June 24, 2026.
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/46:20 am
ONT
- BKK
2 stops25h 25m
Delta
Wed 8/2611:30 pm
BKK
- ONT
2 stops38h 04m
Delta
Deal found 6/20![Delta logo]()
$839
This Korean Air deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 11/57:00 am
ONT
- BKK
2 stops26h 45m
Korean Air
Wed 11/2512:55 am
BKK
- ONT
2 stops31h 22m
Korean Air
Deal found 6/23![Korean Air logo]()
$845
This China Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 11/1010:50 pm
ONT
- TPE
Nonstop14h 40m
China Airlines
Thu 11/269:25 pm
TPE
- ONT
Nonstop11h 25m
China Airlines
Deal found 6/23![China Airlines logo]()
$900
This United Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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.
Wed 8/125:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Wed 8/267:00 am
BKK
- ONT
2 stops25h 16m
United Airlines
Deal found 6/20![United Airlines logo]()
$950
This China Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 11/1010:50 pm
ONT
- TPE
Nonstop14h 40m
Multiple Airlines
Sun 2/214:30 pm
TPE
- ONT
1 stop18h 20m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,023
This Alaska Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:02 am
ONT
- ICN
1 stop19h 28m
Alaska Airlines
Mon 10/197:35 pm
ICN
- ONT
1 stop14h 28m
Alaska Airlines
Deal found 6/23![Alaska Airlines logo]()
$1,106
This Qatar Airways deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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.
Thu 10/156:02 am
ONT
- DEL
2 stops38h 13m
Qatar Airways
Wed 11/113:45 am
DEL
- ONT
2 stops28h 13m
Qatar Airways
Deal found 6/19![Qatar Airways logo]()
$1,301
This Etihad Airways deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Etihad Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/2711:51 pm
ONT
- DEL
2 stops54h 59m
Etihad Airways
Wed 8/54:50 am
DEL
- ONT
2 stops54h 18m
Etihad Airways
Deal found 6/22![Etihad Airways logo]()
$1,516
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/96:20 am
ONT
- BKK
2 stops25h 25m
Delta
Mon 9/219:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 6/20![Delta logo]()
$889
This Korean Air deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 10/257:00 am
ONT
- BKK
2 stops24h 30m
Korean Air
Wed 10/2812:55 am
BKK
- ONT
2 stops30h 22m
Korean Air
Deal found 6/21![Korean Air logo]()
$895
This China Airlines deal was found by Cheapflights users on 6/18. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:50 pm
ONT
- TPE
Nonstop14h 40m
China Airlines
Thu 11/129:25 pm
TPE
- ONT
Nonstop11h 25m
China Airlines
Deal found 6/18![China Airlines logo]()
$901
This Turkish Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Turkish Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/1111:24 pm
ONT
- DEL
2 stops64h 56m
Turkish Airlines
Thu 7/166:30 am
DEL
- ONT
2 stops28h 44m
Turkish Airlines
Deal found 6/22![Turkish Airlines logo]()
$1,874
This Delta deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 11/26:00 am
ONT
- BKK
2 stops24h 30m
Delta
Tue 1/269:30 pm
BKK
- ONT
2 stops40h 13m
Delta
Deal found 6/19![Delta logo]()
$890
This United Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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.
Sat 10/174:03 pm
ONT
- BKK
2 stops27h 32m
United Airlines
Mon 11/99:10 am
BKK
- ONT
2 stops21h 13m
United Airlines
Deal found 6/19![United Airlines logo]()
$1,004
This China Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 11/910:50 pm
ONT
- TPE
Nonstop14h 40m
China Airlines
Fri 11/279:25 pm
TPE
- ONT
Nonstop11h 25m
China Airlines
Deal found 6/23![China Airlines logo]()
$926
This China Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1912:10 am
ONT
- TPE
Nonstop14h 05m
Multiple Airlines
Sun 9/275:30 pm
TPE
- ONT
1 stop19h 50m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$1,027
This Korean Air deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 9/36:20 am
ONT
- SHA
2 stops43h 45m
Korean Air
Mon 9/286:25 pm
SHA
- ONT
2 stops43h 15m
Korean Air
Deal found 6/21![Korean Air logo]()
$947
This Alaska Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:20 pm
ONT
- ICN
1 stop28h 10m
Alaska Airlines
Sat 7/257:35 pm
ICN
- ONT
1 stop19h 36m
Alaska Airlines
Deal found 6/19![Alaska Airlines logo]()
$1,113
This United Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/47:13 pm
ONT
- TPE
1 stop17h 52m
United Airlines
Sat 9/199:50 am
TPE
- ONT
1 stop17h 22m
United Airlines
Deal found 6/22![United Airlines logo]()
$1,022
This China Airlines deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 9/107:59 pm
ONT
- TPE
1 stop18h 01m
Multiple Airlines
Thu 9/179:10 pm
TPE
- ONT
Nonstop11h 50m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$1,031
This Korean Air deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/206:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Mon 7/2711:30 pm
BKK
- ONT
2 stops31h 51m
Korean Air
Deal found 6/23![Korean Air logo]()
$956
This Delta deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 9/216:20 am
ONT
- TPE
1 stop22h 35m
Delta
Mon 9/289:35 am
TPE
- ONT
1 stop16h 39m
Delta
Deal found 6/20![Delta logo]()
$971
This China Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2612:10 am
ONT
- SGN
1 stop19h 30m
China Airlines
Thu 12/311:00 am
SGN
- ONT
1 stop20h 50m
China Airlines
Deal found 6/22![China Airlines logo]()
$1,015
This United Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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.
Mon 8/179:01 am
ONT
- SGN
2 stops23h 04m
United Airlines
Wed 9/97:00 am
SGN
- ONT
3 stops25h 16m
United Airlines
Deal found 6/21![United Airlines logo]()
$1,024
This Alaska Airlines deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am
ONT
- NRT
1 stop16h 25m
Alaska Airlines
Thu 12/105:25 pm
NRT
- ONT
1 stop14h 22m
Alaska Airlines
Deal found 6/21![Alaska Airlines logo]()
$1,173
This Delta deal was found by Cheapflights users on 6/18. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2911:44 am
ONT
- TPE
1 stop17h 11m
Delta
Mon 11/1610:55 am
TPE
- ONT
2 stops28h 53m
Delta
Deal found 6/18![Delta logo]()
$976
This Korean Air deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 11/107:00 am
ONT
- SHA
2 stops42h 10m
Korean Air
Tue 12/16:25 pm
SHA
- ONT
2 stops38h 52m
Korean Air
Deal found 6/23![Korean Air logo]()
$994
This Qatar Airways deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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.
Thu 9/1712:12 pm
ONT
- DEL
2 stops25h 13m
Qatar Airways
Wed 9/239:30 pm
DEL
- ONT
2 stops28h 25m
Qatar Airways
Deal found 6/22![Qatar Airways logo]()
$1,328
This MakeMyTrip deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure MakeMyTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:55 pm
ONT
- SHA
2 stops24h 00m
Multiple Airlines
Mon 8/1710:30 pm
SHA
- ONT
2 stops58h 10m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$1,113
This China Airlines deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 9/3012:10 am
ONT
- SGN
1 stop19h 30m
China Airlines
Sun 11/295:50 pm
SGN
- ONT
1 stop38h 00m
China Airlines
Deal found 6/22![China Airlines logo]()
$1,015
Last-minute flights from Ontario to AsiaDiscover last-minute flight deals from Ontario to Asia. Data last updated June 24, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Asia. Data last updated June 24, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/86:20 am
ONT
- HND
1 stop16h 00m
Delta
Tue 9/14:20 pm
HND
- ONT
1 stop17h 01m
Delta
Deal found 6/23![Delta logo]()
$948
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/91:00 pm
ONT
- BKK
2 stops44h 35m
Delta
Sat 7/1811:30 pm
BKK
- ONT
2 stops47h 17m
Delta
Deal found 6/21![Delta logo]()
$951
This Korean Air deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/146:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Sat 7/252:35 am
BKK
- ONT
2 stops34h 17m
Korean Air
Deal found 6/19![Korean Air logo]()
$922
This Korean Air deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/146:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Tue 7/282:35 am
BKK
- ONT
2 stops28h 46m
Korean Air
Deal found 6/19![Korean Air logo]()
$935
This United Airlines deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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.
Wed 7/155:00 am
ONT
- BKK
2 stops28h 55m
United Airlines
Thu 8/207:00 am
BKK
- ONT
2 stops25h 11m
United Airlines
Deal found 6/23![United Airlines logo]()
$950
This Delta deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/166:00 am
ONT
- BKK
2 stops25h 45m
Delta
Tue 9/159:50 am
BKK
- ONT
2 stops26h 50m
Delta
Deal found 6/21![Delta logo]()
$839
This Booking.com deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/189:20 pm
ONT
- NRT
1 stop26h 40m
Multiple Airlines
Fri 7/246:00 pm
NRT
- ONT
1 stop21h 11m
Multiple Airlines
Deal found 6/22![Multiple Airlines logo]()
$939
This SmartFares deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 7/196:02 am
ONT
- NRT
1 stop17h 58m
Multiple Airlines
Fri 7/246:00 pm
NRT
- ONT
1 stop21h 11m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$931
This Alaska Airlines deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/199:20 pm
ONT
- NRT
1 stop26h 40m
Multiple Airlines
Tue 7/216:00 pm
NRT
- ONT
1 stop21h 11m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$946
This Cheapflightsfares deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Cheapflightsfares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/262:05 pm
ONT
- NRT
1 stop33h 55m
Multiple Airlines
Tue 8/116:00 pm
NRT
- ONT
1 stop21h 11m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$953
This Korean Air deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/286:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Fri 8/1411:30 pm
BKK
- ONT
2 stops37h 15m
Korean Air
Deal found 6/23![Korean Air logo]()
$909
This lol.travel deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” 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 7/306:20 am
ONT
- BKK
2 stops25h 25m
Korean Air
Wed 10/2812:55 am
BKK
- ONT
2 stops30h 22m
Korean Air
Deal found 6/21![Korean Air logo]()
$888
One-way flights from Ontario to AsiaSearch for one-way flight options from Ontario to Asia. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
Search for one-way flight options from Ontario to Asia. Find affordable one-way fares based on user searches. Data last updated June 24, 2026.
This Trip.com deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/298:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$379
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/18:58 am
ONT
- ICN
1 stop19h 12m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$381
This Trip.com deal was found by Cheapflights users on 6/19. Clicking the “Pick Dates” 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 8/58:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/19![Multiple Airlines logo]()
$401
This SmartFares deal was found by Cheapflights users on 6/18. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 7/276:02 am
ONT
- NRT
1 stop17h 58m
Multiple Airlines
Deal found 6/18![Multiple Airlines logo]()
$418
This Trip.com deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/228:58 am
ONT
- ICN
1 stop20h 42m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$419
This SmartFares deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 8/36:02 am
ONT
- NRT
1 stop17h 58m
Multiple Airlines
Deal found 6/23![Multiple Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 6/23. Clicking the “Pick Dates” 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 7/246:00 am
ONT
- BKK
2 stops27h 35m
Delta
Deal found 6/23![Delta logo]()
$428
This Korean Air deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/116:20 am
ONT
- BKK
2 stops27h 15m
Korean Air
Deal found 6/22![Korean Air logo]()
$431
This SmartFares deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 7/286:02 am
ONT
- NRT
1 stop17h 58m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$433
This SmartFares deal was found by Cheapflights users on 6/20. Clicking the “Pick Dates” 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 8/56:02 am
ONT
- NRT
1 stop17h 58m
Multiple Airlines
Deal found 6/20![Multiple Airlines logo]()
$437
This Orbitz deal was found by Cheapflights users on 6/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/306:02 am
ONT
- TPE
2 stops26h 18m
Multiple Airlines
Deal found 6/21![Multiple Airlines logo]()
$439
This Delta deal was found by Cheapflights users on 6/22. Clicking the “Pick Dates” 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 7/101:00 pm
ONT
- BKK
2 stops44h 35m
Delta
Deal found 6/22![Delta logo]()
$439
Find flight deals from Ontario to Asia
Keep the following information in mind while searching for Ontario to Asia flight deals. Data was last updated June 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $837 (Korean Air) |
One-way from | $379 (Trip.com) |
Popular in | December |
Cheapest in | September |
Average price | $1,226 |
Good round-trip deal | $1,009 or less |
Good one-way deal | $598 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Asia 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 June 24, 2026.
Use the filters below to find and compare flights from Ontario to Asia that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Tue 8/4
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Wed 8/26
11:30 pm-11:34 pm
2 stops38h 04m
$839
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Thu 11/5
7:00 am-12:45 am
2 stops26h 45m
Bangkok Suvarnabhumi
Wed 11/25
12:55 am-5:17 pm
2 stops31h 22m
$845
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 9/9
6:20 am-9:45 pm
2 stops25h 25m
Bangkok Suvarnabhumi
Mon 9/21
9:50 am-10:40 pm
2 stops26h 50m
$889
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Mon 11/2
6:00 am-9:30 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Tue 1/26
9:30 pm-10:43 pm
2 stops40h 13m
$890
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Sun 10/25
7:00 am-9:30 pm
2 stops24h 30m
Bangkok Suvarnabhumi
Wed 10/28
12:55 am-5:17 pm
2 stops30h 22m
$895
Quickest round-trip
OntarioTaipei City
ONT - TPE
ONTTPE
Ontario
Tue 11/10
10:50 pm-5:30 am
Nonstop14h 40m
Taipei City Taiwan Taoyuan Intl
Thu 11/26
9:25 pm-4:50 pm
Nonstop11h 25m
$900
OntarioTaipei City
ONT - TPE
ONTTPE
Ontario
Sun 11/1
10:50 pm-5:30 am
Nonstop14h 40m
Taipei City Taiwan Taoyuan Intl
Thu 11/12
9:25 pm-4:50 pm
Nonstop11h 25m
$901
OntarioTaipei City
ONT - TPE
ONTTPE
Ontario
Mon 11/9
10:50 pm-5:30 am
Nonstop14h 40m
Taipei City Taiwan Taoyuan Intl
Fri 11/27
9:25 pm-4:50 pm
Nonstop11h 25m
$926
OntarioShanghai
ONT - SHA
ONTSHA
Ontario
Thu 9/3
6:20 am-5:05 pm
2 stops43h 45m
Shanghai Hongqiao Intl
Mon 9/28
6:25 pm-10:40 pm
2 stops43h 15m
$947
OntarioBangkok
ONT - BKK
ONTBKK
Ontario
Wed 8/12
5:00 am-11:55 pm
2 stops28h 55m
Bangkok Suvarnabhumi
Wed 8/26
7:00 am-6:16 pm
2 stops25h 16m
$950
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Asia
Have a flexible travel schedule? Discover the best time to fly to Asia from Ontario with our price prediction graph.
ONT-BKK
ONT-TPE
ONT-ICN
ONT-DEL
ONT-SHA
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 Asia
ONT-AS0
ONT-BKK
ONT-TPE
ONT-ICN
ONT-DEL
What is the cheapest month to book a flight from Ontario to Asia?
Currently, January is the cheapest month in which you can book a flight from Ontario to Asia (average of $715). Flying from Ontario to Asia in December is currently the most expensive (average of $1,419). 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.
What is the cheapest time of day to fly from ONT to AS?
Find hourly flight availability from Ontario to Asia. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated June 24, 2026.
Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Ontario to Asia as you normally would.
How far ahead should I book a flight from Ontario to Asia?
To ensure you get the cheapest price possible for a flight from Ontario to Asia, you should look to book at least 72 days in advance of your intended travel date. The price of your flight may increase if you delay and leave booking until a week or so before departure.
Reviews of airlines servicing Asia
Get insights into the airlines that provide service to Asia. 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 Asia. Reviews last updated June 24, 2026.
Read reviews from past customers who have flown STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Asia. Users can see the overall rating for each airline as well as how each is rated in terms of entertainment options, comfort, food, crew/service, and boarding process.
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Boarding
8.9
Overall
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Food
8.7
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Asia. 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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Alternative routes for Ontario to Asia
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Asia by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Asia by cabin class
Find flights from Ontario to Asia, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Asia flights
Browse other Ontario and Asia flight options. Last updated on June 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Fly to Asia countries
Consider these flights traveling to countries located in Asia.
Ontario to Asia flights
Consider these flights traveling from Ontario to Asia.
Top 8 airlines flying from Ontario to Asia
Discover the top 8 airlines that operate flights from Ontario to Asia. 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 June 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$457 | Average$930 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$509 | Average$1,084 | FlexibilityNo cancel fee | On-time69% | |
| Cheapest$611 | Average$793 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$645 | Average$944 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$647 | Average$1,209 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$652 | Average$1,030 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$754 | Average$1,359 | FlexibilityNo cancel fee | On-time60% | |
| Cheapest$783 | Average$975 | FlexibilityNo cancel fee | On-time71% |