$460+ Cheap flights from Ontario (ONT) to Vietnam
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 8/30. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Aug 19 — Aug 261
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Vietnam with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheap flight deals from Ontario to Vietnam
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Cheapest flights from Ontario to VietnamExplore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
Explore the most affordable flight options available from Ontario to Vietnam. Find the lowest fares from popular airlines and budget airlines, with prices last updated on July 20, 2026.
This Delta deal was found by Cheapflights users on 7/18. 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.
Mon 10/126:20 am
ONT
- HAN
2 stops25h 15m
Delta
Tue 10/2711:05 pm
HAN
- ONT
2 stops32h 07m
Delta
Deal found 7/18![Delta logo]()
$957
This oojo deal was found by Cheapflights users on 7/15. 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.
Sat 8/812:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Tue 8/2511:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/15![China Airlines logo]()
$968
This flugladen.de deal was found by Cheapflights users on 7/15. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/912:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Tue 8/2511:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/15![China Airlines logo]()
$971
This Gotogate deal was found by Cheapflights users on 7/16. 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.
Fri 8/2812:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Sat 9/1910:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/16![China Airlines logo]()
$973
This Gotogate deal was found by Cheapflights users on 7/15. 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 9/212:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Sat 9/1210:00 am
DAD
- ONT
1 stop22h 40m
China Airlines
Deal found 7/15![China Airlines logo]()
$974
This Gotogate deal was found by Cheapflights users on 7/16. 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.
Sun 9/2012:10 am
ONT
- DAD
1 stop26h 20m
China Airlines
Fri 10/25:30 pm
DAD
- ONT
1 stop38h 30m
China Airlines
Deal found 7/16![China Airlines logo]()
$975
This Gotogate deal was found by Cheapflights users on 7/15. 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.
Sun 8/3012:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Wed 9/3010:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/15![China Airlines logo]()
$976
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Tue 9/85:30 pm
DAD
- ONT
1 stop39h 10m
China Airlines
Deal found 7/17![China Airlines logo]()
$977
This oojo deal was found by Cheapflights users on 7/15. 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.
Tue 8/2512:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Wed 9/910:00 am
DAD
- ONT
1 stop22h 40m
China Airlines
Deal found 7/15![China Airlines logo]()
$978
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Mon 9/1411:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/19![China Airlines logo]()
$979
This oojo deal was found by Cheapflights users on 7/15. 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.
Thu 8/1312:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Fri 8/285:50 pm
HAN
- ONT
1 stop38h 50m
China Airlines
Deal found 7/15![China Airlines logo]()
$983
This oojo deal was found by Cheapflights users on 7/18. 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.
Sun 8/912:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Mon 8/1711:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/18![China Airlines logo]()
$984
Best flights from Ontario to VietnamDiscover carefully curated flight deals from Ontario to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
Discover carefully curated flight deals from Ontario to Vietnam that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated July 20, 2026.
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:10 am
ONT
- DAD
1 stop18h 50m
China Airlines
Wed 10/710:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/17![China Airlines logo]()
$977
This Korean Air deal was found by Cheapflights users on 7/19. 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.
Mon 9/76:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Thu 9/1011:45 pm
SGN
- ONT
2 stops31h 34m
Korean Air
Deal found 7/19![Korean Air logo]()
$998
This Delta deal was found by Cheapflights users on 7/19. 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.
Sun 8/96:20 am
ONT
- SGN
2 stops26h 55m
Delta
Sun 10/117:30 am
SGN
- ONT
2 stops30h 16m
Delta
Deal found 7/19![Delta logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Thu 12/316:00 am
ONT
- SGN
2 stops27h 15m
United Airlines
Mon 1/187:30 am
SGN
- ONT
2 stops22h 57m
United Airlines
Deal found 7/19![United Airlines logo]()
$1,046
This STARLUX Airlines deal was found by Cheapflights users on 7/14. 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 8/1211:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Tue 9/86:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/14![STARLUX Airlines logo]()
$1,083
This ANA deal was found by Cheapflights users on 7/19. 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 ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/39:01 am
ONT
- HAN
2 stops23h 14m
Multiple Airlines
Mon 9/1411:35 pm
HAN
- ONT
2 stops28h 26m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$1,131
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/3012:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Wed 9/1610:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/19![China Airlines logo]()
$977
This Delta deal was found by Cheapflights users on 7/16. 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.
Wed 8/56:00 am
ONT
- SGN
2 stops27h 15m
Delta
Thu 10/87:30 am
SGN
- ONT
2 stops30h 16m
Delta
Deal found 7/16![Delta logo]()
$1,034
This Korean Air deal was found by Cheapflights users on 7/18. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/56:20 am
ONT
- SGN
2 stops40h 15m
Korean Air
Thu 10/81:55 pm
SGN
- ONT
2 stops41h 17m
Korean Air
Deal found 7/18![Korean Air logo]()
$1,039
This United Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/106:00 am
ONT
- SGN
3 stops26h 05m
United Airlines
Mon 8/317:00 am
SGN
- ONT
3 stops25h 11m
United Airlines
Deal found 7/19![United Airlines logo]()
$1,056
This China Airlines deal was found by Cheapflights users on 7/19. 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.
Sat 10/1712:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Thu 10/225:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 7/19![China Airlines logo]()
$1,011
This Delta deal was found by Cheapflights users on 7/15. 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 8/266:00 am
ONT
- DAD
2 stops25h 05m
Delta
Tue 9/83:55 pm
DAD
- ONT
2 stops44h 09m
Delta
Deal found 7/15![Delta logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 7/17. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:00 am
ONT
- SGN
2 stops26h 15m
United Airlines
Sun 8/237:00 am
SGN
- ONT
2 stops25h 11m
United Airlines
Deal found 7/17![United Airlines logo]()
$1,063
This Korean Air deal was found by Cheapflights users on 7/15. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/216:20 am
ONT
- DAD
2 stops24h 45m
Korean Air
Wed 9/23:55 pm
DAD
- ONT
2 stops39h 26m
Korean Air
Deal found 7/15![Korean Air logo]()
$1,069
This Booking.com deal was found by Cheapflights users on 7/18. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 am
ONT
- DAD
1 stop18h 15m
Multiple Airlines
Sun 8/307:50 am
DAD
- ONT
2 stops24h 50m
Multiple Airlines
Deal found 7/18![Multiple Airlines logo]()
$1,180
This China Airlines deal was found by Cheapflights users on 7/15. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:10 am
ONT
- SGN
1 stop26h 10m
China Airlines
Sat 11/711:00 am
SGN
- ONT
1 stop21h 05m
China Airlines
Deal found 7/15![China Airlines logo]()
$1,025
This Delta deal was found by Cheapflights users on 7/17. 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.
Mon 8/316:20 am
ONT
- DAD
2 stops24h 45m
Delta
Mon 9/710:55 pm
DAD
- ONT
2 stops37h 09m
Delta
Deal found 7/17![Delta logo]()
$1,034
This United Airlines deal was found by Cheapflights users on 7/16. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/158:00 am
ONT
- SGN
2 stops26h 15m
United Airlines
Wed 8/197:00 am
SGN
- ONT
2 stops25h 16m
United Airlines
Deal found 7/16![United Airlines logo]()
$1,063
This Korean Air deal was found by Cheapflights users on 7/17. 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.
Thu 10/226:20 am
ONT
- DAD
2 stops24h 45m
Korean Air
Mon 10/263:45 pm
DAD
- ONT
2 stops39h 27m
Korean Air
Deal found 7/17![Korean Air logo]()
$1,116
This Delta deal was found by Cheapflights users on 7/15. 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 8/266:20 am
ONT
- DAD
2 stops24h 45m
Delta
Wed 9/910:55 pm
DAD
- ONT
2 stops37h 09m
Delta
Deal found 7/15![Delta logo]()
$1,034
This China Airlines deal was found by Cheapflights users on 7/18. 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.
Tue 10/1312:10 am
ONT
- HAN
1 stop26h 40m
China Airlines
Sat 10/3111:35 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 7/18![China Airlines logo]()
$1,036
This Korean Air deal was found by Cheapflights users on 7/19. 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.
Sun 10/186:20 am
ONT
- HAN
2 stops38h 15m
Korean Air
Thu 10/2212:05 pm
HAN
- ONT
2 stops43h 07m
Korean Air
Deal found 7/19![Korean Air logo]()
$1,134
This China Airlines deal was found by Cheapflights users on 7/16. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2312:10 am
ONT
- SGN
1 stop19h 50m
China Airlines
Tue 11/1011:00 am
SGN
- ONT
1 stop21h 05m
China Airlines
Deal found 7/16![China Airlines logo]()
$1,039
This Delta deal was found by Cheapflights users on 7/17. 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.
Wed 9/26:20 am
ONT
- DAD
2 stops24h 45m
Delta
Thu 10/83:55 pm
DAD
- ONT
2 stops39h 17m
Delta
Deal found 7/17![Delta logo]()
$1,064
This China Airlines deal was found by Cheapflights users on 7/15. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:50 pm
ONT
- SGN
1 stop20h 10m
China Airlines
Fri 12/1111:00 am
SGN
- ONT
1 stop21h 05m
China Airlines
Deal found 7/15![China Airlines logo]()
$1,039
This Delta deal was found by Cheapflights users on 7/15. 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.
Fri 8/216:20 am
ONT
- DAD
2 stops24h 45m
Delta
Wed 9/23:55 pm
DAD
- ONT
2 stops44h 50m
Delta
Deal found 7/15![Delta logo]()
$1,114
This China Airlines deal was found by Cheapflights users on 7/19. 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.
Mon 8/1012:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Sun 8/165:30 pm
SGN
- ONT
1 stop39h 10m
China Airlines
Deal found 7/19![China Airlines logo]()
$1,064
This Delta deal was found by Cheapflights users on 7/18. 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.
Sun 10/116:20 am
ONT
- HAN
2 stops25h 15m
Delta
Sat 10/3111:05 pm
HAN
- ONT
2 stops33h 07m
Delta
Deal found 7/18![Delta logo]()
$1,129
This China Airlines deal was found by Cheapflights users on 7/17. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/212:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Tue 8/1111:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/17![China Airlines logo]()
$1,096
This Delta deal was found by Cheapflights users on 7/18. 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.
Sun 8/26:00 am
ONT
- HAN
2 stops25h 35m
Delta
Mon 8/1711:10 pm
HAN
- ONT
2 stops37h 35m
Delta
Deal found 7/18![Delta logo]()
$1,169
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated July 20, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated July 20, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/15. 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.
Sat 8/812:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Tue 8/2511:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/15![China Airlines logo]()
$968
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Sun 8/235:50 pm
HAN
- ONT
1 stop38h 50m
China Airlines
Deal found 7/17![China Airlines logo]()
$985
This flugladen.de deal was found by Cheapflights users on 7/15. 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 flugladen.de is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/912:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Tue 8/2511:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/15![China Airlines logo]()
$971
This oojo deal was found by Cheapflights users on 7/18. 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.
Sun 8/912:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Mon 8/1711:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/18![China Airlines logo]()
$984
This Mytrip deal was found by Cheapflights users on 7/15. 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.
Tue 8/1112:45 am
ONT
- HAN
2 stops33h 40m
Multiple Airlines
Wed 8/1911:25 pm
HAN
- ONT
2 stops33h 15m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$987
This oojo deal was found by Cheapflights users on 7/15. 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.
Thu 8/1312:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Fri 8/285:50 pm
HAN
- ONT
1 stop38h 50m
China Airlines
Deal found 7/15![China Airlines logo]()
$983
This Justfly.com deal was found by Cheapflights users on 7/15. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/1312:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Fri 8/215:50 pm
HAN
- ONT
1 stop38h 50m
China Airlines
Deal found 7/15![China Airlines logo]()
$991
This oojo deal was found by Cheapflights users on 7/15. 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.
Tue 8/2512:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Tue 9/85:30 pm
DAD
- ONT
1 stop39h 10m
China Airlines
Deal found 7/15![China Airlines logo]()
$978
This oojo deal was found by Cheapflights users on 7/17. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2612:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Tue 9/85:30 pm
DAD
- ONT
1 stop39h 10m
China Airlines
Deal found 7/17![China Airlines logo]()
$977
This Justfly.com deal was found by Cheapflights users on 7/17. 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.
Thu 8/2712:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Tue 9/85:30 pm
DAD
- ONT
1 stop39h 10m
China Airlines
Deal found 7/17![China Airlines logo]()
$986
This Gotogate deal was found by Cheapflights users on 7/16. 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.
Fri 8/2812:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Sat 9/1910:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/16![China Airlines logo]()
$973
This Gotogate deal was found by Cheapflights users on 7/15. 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.
Sun 8/3012:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Wed 9/3010:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/15![China Airlines logo]()
$976
One-way flights from Ontario to VietnamSearch for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated July 20, 2026.
This Orbitz deal was found by Cheapflights users on 7/15. 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 Orbitz is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/307:59 pm
ONT
- SGN
2 stops36h 51m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$460
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/164:09 pm
ONT
- SGN
2 stops25h 11m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$476
This oojo deal was found by Cheapflights users on 7/16. 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 8/2612:00 pm
ONT
- SGN
2 stops36h 25m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$477
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/114:00 pm
ONT
- SGN
2 stops25h 20m
Multiple Airlines
Deal found 7/19![Multiple Airlines logo]()
$479
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/178:58 am
ONT
- SGN
2 stops39h 27m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$483
This Kiwi.com deal was found by Cheapflights users on 7/15. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:38 am
ONT
- SGN
2 stops36h 47m
Multiple Airlines
Deal found 7/15![Multiple Airlines logo]()
$484
This SmartFares deal was found by Cheapflights users on 7/17. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Deal found 7/17![China Airlines logo]()
$486
This oojo deal was found by Cheapflights users on 7/15. 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.
Sat 8/2912:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Deal found 7/15![China Airlines logo]()
$487
This oojo deal was found by Cheapflights users on 7/16. 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.
Sun 11/157:10 pm
ONT
- SGN
2 stops46h 10m
Multiple Airlines
Deal found 7/16![Multiple Airlines logo]()
$488
This oojo deal was found by Cheapflights users on 7/18. 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.
Mon 9/2812:10 am
ONT
- SGN
1 stop19h 30m
China Airlines
Deal found 7/18![China Airlines logo]()
$489
This oojo deal was found by Cheapflights users on 7/15. 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 8/1412:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Deal found 7/15![China Airlines logo]()
$490
This oojo deal was found by Cheapflights users on 7/19. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:50 pm
ONT
- SGN
1 stop20h 10m
China Airlines
Deal found 7/19![China Airlines logo]()
$491
Find flight deals from Ontario to Vietnam
Keep the following information in mind while searching for Ontario to Vietnam flight deals. Data was last updated July 20, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $957 (Delta) |
One-way from | $460 (Orbitz) |
Popular in | December |
Cheapest in | August |
Average price | $1,069 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Vietnam 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 July 20, 2026.
Use the filters below to find and compare flights from Ontario to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
Quickest round-trip
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Tue 9/15
12:10 am-9:00 am
1 stop18h 50m
Da Nang
Wed 10/7
10:00 am-6:00 pm
1 stop22h 00m
$977
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Sun 8/30
12:45 am-4:30 pm
1 stop25h 45m
Da Nang
Wed 9/16
10:00 am-6:00 pm
1 stop22h 00m
$977
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Mon 9/7
6:20 am-10:10 pm
2 stops25h 50m
Ho Chi Minh City
Thu 9/10
11:45 pm-5:19 pm
2 stops31h 34m
$998
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Sat 10/17
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Thu 10/22
5:50 pm-6:00 pm
1 stop38h 10m
$1,011
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Wed 9/23
12:10 am-4:20 pm
1 stop26h 10m
Ho Chi Minh City
Sat 11/7
11:00 am-5:05 pm
1 stop21h 05m
$1,025
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Sun 8/9
6:20 am-11:15 pm
2 stops26h 55m
Ho Chi Minh City
Sun 10/11
7:30 am-11:46 pm
2 stops30h 16m
$1,034
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Wed 8/5
6:00 am-11:15 pm
2 stops27h 15m
Ho Chi Minh City
Thu 10/8
7:30 am-11:46 pm
2 stops30h 16m
$1,034
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Wed 8/26
6:00 am-9:05 pm
2 stops25h 05m
Da Nang
Tue 9/8
3:55 pm-10:04 pm
2 stops44h 09m
$1,034
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Mon 8/31
6:20 am-9:05 pm
2 stops24h 45m
Da Nang
Mon 9/7
10:55 pm-10:04 pm
2 stops37h 09m
$1,034
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Wed 8/26
6:20 am-9:05 pm
2 stops24h 45m
Da Nang
Wed 9/9
10:55 pm-10:04 pm
2 stops37h 09m
$1,034
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from Ontario with our price prediction graph.
ONT-HAN
ONT-DAD
ONT-SGN
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 Vietnam
ONT-VN0
ONT-HAN
ONT-DAD
ONT-SGN
What is the cheapest month to book a flight from Ontario to Vietnam?
Currently, March is the cheapest month in which you can book a flight from Ontario to Vietnam (average of $737). Flying from Ontario to Vietnam in December is currently the most expensive (average of $1,596). 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 far ahead should I book a flight from Ontario to Vietnam?
The best time to book flights from Ontario to Vietnam is 65 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.
Reviews of airlines servicing Vietnam
Get insights into the airlines that provide service to Vietnam. 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 Vietnam. Reviews last updated July 20, 2026.
See what other customers who have flown with STARLUX Airlines,Korean Air, andChina Airlines from Ontario to Vietnam have to say. You can also see how each airline compares in terms of entertainment options, comfort, food, crew/service, and boarding process.
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Food
8.6
Boarding
8.9
Entertainment
8.7
Comfort
8.9
Crew
9.1
Overall
8.8
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 Vietnam. 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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Alternative routes for Ontario to Vietnam
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Vietnam by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Vietnam by cabin class
Find flights from Ontario to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Vietnam flights
Browse other Ontario and Vietnam flight options. Last updated on July 20, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Ontario to Vietnam flights
Consider these flights traveling from Ontario to Vietnam.
Fly to Vietnam regions
Consider these flights traveling to Vietnam regions.
Top 5 airlines flying from Ontario to Vietnam
Discover the top 5 airlines that operate flights from Ontario to Vietnam. 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 July 20, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$852 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$691 | Average$821 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$741 | Average$897 | FlexibilityNo cancel fee | On-timeN/A |