$405+ 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 9/16. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Sep 21 — Sep 281
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 August 22, 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 August 22, 2026.
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 pm -
1 stop20h 45m
Wed 11/1111:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$754
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop20h 20m
Mon 9/1411:30 am -
1 stop19h 35m
Deal found 8/18![STARLUX Airlines logo]()
$756
This oojo deal was found by Cheapflights users on 8/17. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:45 pm -
1 stop28h 00m
Thu 1/285:50 pm -
1 stop37h 05m
Deal found 8/17![STARLUX Airlines logo]()
$757
This Flightnetwork deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:30 pm -
1 stop27h 25m
Sun 10/46:05 pm -
1 stop37h 00m
Deal found 8/18![STARLUX Airlines logo]()
$759
This Gotogate deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm -
1 stop20h 45m
Fri 10/911:30 am -
1 stop19h 35m
Deal found 8/18![STARLUX Airlines logo]()
$765
This ScholarTrip deal was found by Cheapflights users on 8/19. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:55 pm -
1 stop20h 20m
Tue 9/86:05 pm -
1 stop37h 00m
Deal found 8/19![STARLUX Airlines logo]()
$766
This Gotogate deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:30 pm -
1 stop20h 45m
Fri 10/3011:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$769
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:55 pm -
1 stop27h 40m
Tue 9/16:45 pm -
1 stop36h 20m
Deal found 8/18![STARLUX Airlines logo]()
$774
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
1 stop20h 45m
Fri 10/3011:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$775
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:30 pm -
1 stop28h 40m
Sun 11/86:25 pm -
1 stop36h 30m
Deal found 8/18![STARLUX Airlines logo]()
$777
This Trip.com deal was found by Cheapflights users on 8/19. 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.
Fri 10/1611:30 pm -
1 stop27h 25m
Wed 11/411:40 am -
1 stop19h 15m
Deal found 8/19![STARLUX Airlines logo]()
$778
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:30 pm -
1 stop27h 20m
Thu 10/155:50 pm -
1 stop37h 15m
Deal found 8/18![STARLUX Airlines logo]()
$779
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 August 22, 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 August 22, 2026.
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:30 pm -
1 stop27h 20m
Thu 10/155:50 pm -
1 stop37h 15m
Deal found 8/18![STARLUX Airlines logo]()
$779
This Delta deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:20 am -
2 stops40h 15m
Tue 9/2211:45 pm -
2 stops36h 55m
Deal found 8/18![Delta logo]()
$806
This Korean Air deal was found by Cheapflights users on 8/22. 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.
Wed 11/187:00 am -
2 stops24h 25m
Thu 12/38:00 am -
2 stops24h 15m
Deal found 8/22![Korean Air logo]()
$812
This lastminute.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop20h 20m
Sun 10/411:30 am -
1 stop20h 30m
Deal found 8/18![China Airlines logo]()
$826
This United Airlines deal was found by Cheapflights users on 8/19. 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 10/178:03 am -
2 stops24h 02m
Mon 11/167:30 am -
2 stops23h 03m
Deal found 8/19![United Airlines logo]()
$922
This Mytrip deal was found by Cheapflights users on 8/20. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/612:45 am -
2 stops30h 35m
Wed 9/1611:00 pm -
2 stops33h 00m
Deal found 8/20![Multiple Airlines logo]()
$966
This Delta deal was found by Cheapflights users on 8/22. 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.
Sat 11/287:00 am -
2 stops25h 20m
Sat 12/58:00 am -
2 stops29h 30m
Deal found 8/22![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 8/22. 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.
Sun 9/276:00 am -
2 stops40h 35m
Wed 3/242:05 pm -
2 stops41h 12m
Deal found 8/22![Korean Air logo]()
$812
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:45 am -
1 stop19h 45m
Wed 10/1411:30 am -
1 stop20h 30m
Deal found 8/18![China Airlines logo]()
$837
This STARLUX Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:30 pm -
1 stop28h 05m
Fri 10/167:20 pm -
1 stop35h 45m
Deal found 8/18![STARLUX Airlines logo]()
$870
This Korean Air deal was found by Cheapflights users on 8/22. 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 10/176:20 am -
2 stops40h 15m
Sat 10/318:00 am -
2 stops23h 12m
Deal found 8/22![Korean Air logo]()
$812
This Delta deal was found by Cheapflights users on 8/21. 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.
Tue 9/156:00 am -
2 stops25h 35m
Sun 9/2711:10 pm -
2 stops37h 30m
Deal found 8/21![Delta logo]()
$826
This United Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 10/96:00 am -
2 stops26h 05m
Mon 10/267:30 am -
2 stops24h 26m
Deal found 8/20![United Airlines logo]()
$922
This China Airlines deal was found by Cheapflights users on 8/19. 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 11/1410:50 pm -
1 stop20h 10m
Wed 12/911:00 am -
1 stop21h 05m
Deal found 8/19![China Airlines logo]()
$845
This Korean Air deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/257:00 am -
2 stops24h 25m
Wed 2/242:05 pm -
2 stops38h 52m
Deal found 8/18![Korean Air logo]()
$859
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 pm -
1 stop19h 25m
Thu 12/310:25 am -
1 stop21h 40m
Deal found 8/18![China Airlines logo]()
$872
This Delta deal was found by Cheapflights users on 8/19. 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.
Wed 9/96:00 am -
2 stops25h 05m
Wed 10/73:55 pm -
2 stops44h 48m
Deal found 8/19![Delta logo]()
$906
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/310:50 pm -
1 stop19h 25m
Wed 12/210:25 am -
1 stop21h 40m
Deal found 8/18![China Airlines logo]()
$872
This Korean Air deal was found by Cheapflights users on 8/20. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am -
2 stops38h 35m
Fri 9/1111:10 pm -
2 stops32h 09m
Deal found 8/20![Korean Air logo]()
$881
This China Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 11/210:50 pm -
1 stop19h 25m
Thu 11/510:25 am -
1 stop21h 40m
Deal found 8/20![China Airlines logo]()
$872
This Korean Air deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:20 am -
2 stops40h 55m
Thu 11/53:45 pm -
2 stops40h 27m
Deal found 8/18![Korean Air logo]()
$912
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/110:50 pm -
1 stop26h 35m
Thu 12/310:25 am -
1 stop21h 40m
Deal found 8/18![China Airlines logo]()
$872
This Korean Air deal was found by Cheapflights users on 8/20. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/37:00 am -
2 stops38h 50m
Wed 3/178:00 am -
2 stops23h 17m
Deal found 8/20![Korean Air logo]()
$920
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:10 am -
1 stop26h 40m
Sat 10/2411:30 am -
1 stop20h 30m
Deal found 8/18![China Airlines logo]()
$877
This Korean Air deal was found by Cheapflights users on 8/21. 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.
Wed 8/266:20 am -
2 stops24h 45m
Sun 9/1310:55 pm -
2 stops37h 45m
Deal found 8/21![Korean Air logo]()
$959
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/712:10 am -
1 stop26h 40m
Tue 10/2011:30 am -
1 stop20h 30m
Deal found 8/18![China Airlines logo]()
$877
This China Airlines deal was found by Cheapflights users on 8/20. 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.
Fri 10/912:10 am -
1 stop26h 40m
Sun 10/185:50 pm -
1 stop38h 10m
Deal found 8/20![China Airlines logo]()
$877
This China Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/512:10 am -
1 stop26h 40m
Wed 10/2111:30 am -
1 stop20h 30m
Deal found 8/18![China Airlines logo]()
$877
This China Airlines deal was found by Cheapflights users on 8/20. 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.
Mon 9/712:45 am -
1 stop26h 05m
Fri 9/115:50 pm -
1 stop38h 50m
Deal found 8/20![China Airlines logo]()
$877
This China Airlines deal was found by Cheapflights users on 8/20. 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 2/1610:50 pm -
1 stop20h 10m
Sat 5/1510:50 am -
1 stop21h 10m
Deal found 8/20![China Airlines logo]()
$879
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated August 22, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated August 22, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:55 pm -
1 stop27h 40m
Tue 9/16:45 pm -
1 stop36h 20m
Deal found 8/18![STARLUX Airlines logo]()
$774
This STARLUX Airlines deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm -
1 stop27h 00m
Mon 9/1411:30 am -
1 stop19h 35m
Deal found 8/18![STARLUX Airlines logo]()
$791
This ScholarTrip deal was found by Cheapflights users on 8/19. 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 ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2911:55 pm -
1 stop20h 20m
Tue 9/86:05 pm -
1 stop37h 00m
Deal found 8/19![STARLUX Airlines logo]()
$766
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/3111:55 pm -
1 stop20h 20m
Mon 9/1411:30 am -
1 stop19h 35m
Deal found 8/18![STARLUX Airlines logo]()
$756
This Jetabroad deal was found by Cheapflights users on 8/19. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/26:20 am -
2 stops26h 55m
Thu 9/107:30 am -
2 stops23h 49m
Deal found 8/19![Korean Air logo]()
$787
This AirNGo deal was found by Cheapflights users on 8/19. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/46:20 am -
2 stops25h 50m
Tue 9/87:30 am -
2 stops23h 49m
Deal found 8/19![Korean Air logo]()
$794
This oojo deal was found by Cheapflights users on 8/19. 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 9/1411:30 pm -
1 stop27h 25m
Mon 10/1911:30 am -
1 stop19h 35m
Deal found 8/19![STARLUX Airlines logo]()
$757
This oojo deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1411:30 pm -
1 stop27h 20m
Thu 10/155:50 pm -
1 stop37h 15m
Deal found 8/18![STARLUX Airlines logo]()
$779
This Justfly.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 pm -
1 stop20h 45m
Wed 11/1111:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$754
This Flightnetwork deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Flightnetwork is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2111:30 pm -
1 stop27h 25m
Sun 10/46:05 pm -
1 stop37h 00m
Deal found 8/18![STARLUX Airlines logo]()
$759
This Trip.com deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/2611:30 pm -
1 stop20h 45m
Fri 10/3011:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$775
This Gotogate deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/2811:30 pm -
1 stop20h 45m
Fri 10/3011:40 am -
1 stop19h 15m
Deal found 8/18![STARLUX Airlines logo]()
$769
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 August 22, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated August 22, 2026.
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/1611:30 pm -
1 stop27h 25m
Deal found 8/18![STARLUX Airlines logo]()
$405
This oojo deal was found by Cheapflights users on 8/19. 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 11/189:45 pm -
1 stop21h 45m
Deal found 8/19![STARLUX Airlines logo]()
$407
This Expedia deal was found by Cheapflights users on 8/22. 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 Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/66:20 am -
2 stops25h 15m
Deal found 8/22![Korean Air logo]()
$415
This Trip.com deal was found by Cheapflights users on 8/19. 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.
Mon 9/711:30 pm -
1 stop20h 45m
Deal found 8/19![STARLUX Airlines logo]()
$416
This SmartFares deal was found by Cheapflights users on 8/21. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1911:30 pm -
1 stop20h 45m
Deal found 8/21![STARLUX Airlines logo]()
$417
This Jetabroad deal was found by Cheapflights users on 8/19. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/211:30 pm -
1 stop27h 25m
Deal found 8/19![STARLUX Airlines logo]()
$419
This Delta deal was found by Cheapflights users on 8/22. 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 9/216:00 am -
2 stops25h 35m
Deal found 8/22![Delta logo]()
$419
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1811:30 pm -
1 stop28h 05m
Deal found 8/18![STARLUX Airlines logo]()
$420
This FlightHub deal was found by Cheapflights users on 8/18. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1211:30 pm -
1 stop27h 20m
Deal found 8/18![STARLUX Airlines logo]()
$420
This Korean Air deal was found by Cheapflights users on 8/20. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/36:20 am -
2 stops24h 25m
Deal found 8/20![Korean Air logo]()
$421
This SmartFares deal was found by Cheapflights users on 8/19. 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.
Wed 9/1612:10 am -
1 stop19h 30m
Deal found 8/19![China Airlines logo]()
$422
This oojo deal was found by Cheapflights users on 8/19. 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 11/119:45 pm -
1 stop28h 30m
Deal found 8/19![STARLUX Airlines logo]()
$422
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 August 22, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $754 (FlightHub) |
One-way from | $405 (FlightHub) |
Popular in | December |
Cheapest in | March |
Average price | $756 |
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 7,457,451 searches. Data last updated August 22, 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
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Mon 9/14
11:30 pm-4:50 pm
1 stop27h 20m
Hanoi Noibai
Thu 10/15
5:50 pm-5:05 pm
1 stop37h 15m
$779
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 9/2
6:20 am-12:35 pm
2 stops40h 15m
Ho Chi Minh City
Tue 9/22
11:45 pm-10:40 pm
2 stops36h 55m
$806
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 11/28
7:00 am-11:20 pm
2 stops25h 20m
Ho Chi Minh City
Sat 12/5
8:00 am-10:30 pm
2 stops29h 30m
$807
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 11/18
7:00 am-10:25 pm
2 stops24h 25m
Ho Chi Minh City
Thu 12/3
8:00 am-5:15 pm
2 stops24h 15m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sun 9/27
6:00 am-12:35 pm
2 stops40h 35m
Ho Chi Minh City
Wed 3/24
2:05 pm-5:17 pm
2 stops41h 12m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 10/17
6:20 am-12:35 pm
2 stops40h 15m
Ho Chi Minh City
Sat 10/31
8:00 am-5:12 pm
2 stops23h 12m
$812
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Sun 9/20
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Sun 10/4
11:30 am-6:00 pm
1 stop20h 30m
$826
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Tue 9/15
6:00 am-9:35 pm
2 stops25h 35m
Hanoi Noibai
Sun 9/27
11:10 pm-10:40 pm
2 stops37h 30m
$826
Quickest round-trip
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Sat 9/12
12:45 am-10:30 am
1 stop19h 45m
Hanoi Noibai
Wed 10/14
11:30 am-6:00 pm
1 stop20h 30m
$837
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 11/14
10:50 pm-10:00 am
1 stop20h 10m
Ho Chi Minh City
Wed 12/9
11:00 am-5:05 pm
1 stop21h 05m
$845
Showing 1-10 of 58 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-SGN
ONT-DAD
ONT-HAN
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-SGN
ONT-DAD
ONT-HAN
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 $1,604). 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 71 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 August 22, 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.
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Crew
9.1
Food
8.6
Boarding
8.9
Entertainment
8.7
Overall
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Related info for your journey
Find useful and relevant information for your journey from Ontario to 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
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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 August 22, 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 7,457,451 searches. Data last updated August 22, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$868 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$691 | Average$828 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$743 | Average$927 | FlexibilityNo cancel fee | On-timeN/A |