$404+ 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 8/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Sep 10 — Sep 171
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 11, 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 11, 2026.
This oojo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/10![STARLUX Airlines logo]()
$774
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/1211:55 pm -
1 stop27h 40m
Tue 8/256:45 pm -
1 stop36h 55m
Deal found 8/8![STARLUX Airlines logo]()
$777
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:30 pm -
1 stop20h 40m
Thu 9/245:50 pm -
1 stop37h 15m
Deal found 8/7![STARLUX Airlines logo]()
$779
This FlightHub deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/211:30 pm -
1 stop20h 40m
Fri 10/2311:10 am -
1 stop19h 55m
Deal found 8/9![STARLUX Airlines logo]()
$782
This STARLUX Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/1411:55 pm -
1 stop20h 20m
Thu 9/36:05 pm -
1 stop37h 00m
Deal found 8/11![STARLUX Airlines logo]()
$785
This Gotogate deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 11/259:45 pm -
1 stop28h 30m
Sun 12/66:25 pm -
1 stop36h 30m
Deal found 8/9![STARLUX Airlines logo]()
$789
This Booking.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Mon 11/309:45 pm -
1 stop28h 30m
Sun 1/316:25 pm -
1 stop36h 30m
Deal found 8/11![STARLUX Airlines logo]()
$794
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/211:30 pm -
1 stop20h 40m
Fri 9/1111:10 am -
1 stop19h 55m
Deal found 8/11![STARLUX Airlines logo]()
$794
This Rumbo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:45 am -
1 stop18h 55m
Wed 9/3010:50 am -
1 stop21h 10m
Deal found 8/10![China Airlines logo]()
$798
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:45 am -
1 stop18h 55m
Tue 9/155:30 pm -
1 stop38h 30m
Deal found 8/11![China Airlines logo]()
$800
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 10/1912:10 am -
1 stop19h 30m
Tue 11/1711:00 am -
1 stop21h 05m
Deal found 8/11![China Airlines logo]()
$801
This Gotogate deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/1110:50 pm -
1 stop26h 25m
Mon 11/3011:00 am -
1 stop21h 05m
Deal found 8/11![China Airlines logo]()
$803
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 11, 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 11, 2026.
This STARLUX Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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.
Mon 10/1911:30 pm -
1 stop28h 05m
Thu 10/226:45 pm -
1 stop36h 20m
Deal found 8/10![STARLUX Airlines logo]()
$810
This FlightHub deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/212:45 am -
1 stop25h 45m
Mon 9/145:30 pm -
1 stop39h 10m
Deal found 8/7![China Airlines logo]()
$832
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/216:00 am -
2 stops27h 15m
Tue 9/81:55 pm -
2 stops46h 09m
Deal found 8/10![Delta logo]()
$842
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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.
Tue 11/106:00 am -
2 stops24h 50m
Tue 12/227:30 am -
2 stops22h 51m
Deal found 8/8![United Airlines logo]()
$920
This Korean Air deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 9/46:20 am -
2 stops24h 45m
Mon 9/1410:55 pm -
2 stops37h 45m
Deal found 8/7![Korean Air logo]()
$948
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 -
1 stop25h 45m
Mon 9/146:05 am -
2 stops26h 35m
Deal found 8/7![Multiple Airlines logo]()
$1,011
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/236:00 am -
2 stops27h 15m
Sat 9/51:55 pm -
2 stops46h 50m
Deal found 8/10![Delta logo]()
$842
This China Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/3012:45 am -
1 stop18h 55m
Wed 9/1610:50 am -
1 stop21h 10m
Deal found 8/11![China Airlines logo]()
$845
This STARLUX Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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.
Sat 9/511:30 pm -
1 stop20h 40m
Mon 9/1411:10 am -
1 stop19h 55m
Deal found 8/10![STARLUX Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 11/126:00 am -
2 stops27h 15m
Fri 12/47:30 am -
2 stops19h 50m
Deal found 8/7![United Airlines logo]()
$923
This China Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/212:10 am -
1 stop20h 20m
Mon 10/125:50 pm -
1 stop38h 10m
Deal found 8/9![China Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/19:25 am -
2 stops24h 50m
Sun 10/257:30 am -
2 stops22h 03m
Deal found 8/8![United Airlines logo]()
$923
This Korean Air deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/16:20 am -
2 stops40h 55m
Thu 11/123:45 pm -
2 stops40h 28m
Deal found 8/9![Korean Air logo]()
$1,038
This Delta deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/116:00 am -
2 stops24h 45m
Tue 11/1711:05 pm -
2 stops32h 25m
Deal found 8/7![Delta logo]()
$957
This China Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/912:45 am -
1 stop26h 05m
Mon 9/1411:30 am -
1 stop21h 10m
Deal found 8/10![China Airlines logo]()
$877
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 11/26:00 am -
2 stops27h 15m
Thu 11/267:30 am -
2 stops22h 54m
Deal found 8/9![United Airlines logo]()
$923
This Korean Air deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/186:00 am -
2 stops25h 05m
Sun 9/2710:55 pm -
2 stops37h 45m
Deal found 8/8![Korean Air logo]()
$1,038
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/106:00 am -
2 stops25h 35m
Sun 9/1311:10 pm -
2 stops38h 37m
Deal found 8/10![Delta logo]()
$957
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 11/186:00 am -
2 stops25h 55m
Thu 12/311:05 pm -
2 stops31h 22m
Deal found 8/9![United Airlines logo]()
$926
This Korean Air deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/196:20 am -
2 stops42h 00m
Thu 10/2210:55 pm -
2 stops32h 17m
Deal found 8/8![Korean Air logo]()
$1,038
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/61:06 pm -
2 stops55h 29m
Sun 9/1311:10 pm -
2 stops38h 37m
Deal found 8/10![Delta logo]()
$963
This United Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” 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 10/16:07 am -
2 stops25h 58m
Tue 10/277:30 am -
2 stops24h 31m
Deal found 8/9![United Airlines logo]()
$928
This China Airlines deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” 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 9/1412:45 am -
1 stop18h 15m
Thu 9/175:45 am -
2 stops26h 15m
Deal found 8/6![China Airlines logo]()
$1,040
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/2511:54 am -
2 stops43h 11m
Fri 10/210:55 pm -
2 stops37h 45m
Deal found 8/10![Delta logo]()
$999
This United Airlines deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 11/189:25 am -
2 stops22h 30m
Sat 12/197:30 am -
2 stops19h 45m
Deal found 8/10![United Airlines logo]()
$928
This China Airlines deal was found by Cheapflights users on 8/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:45 am -
1 stop19h 45m
Sat 9/265:50 am -
2 stops26h 10m
Deal found 8/9![China Airlines logo]()
$1,064
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/116:00 am -
2 stops25h 35m
Sun 9/1311:10 pm -
2 stops38h 37m
Deal found 8/10![Delta logo]()
$1,007
This United Airlines deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 9/239:01 am -
2 stops23h 04m
Tue 10/137:00 am -
2 stops24h 41m
Deal found 8/8![United Airlines logo]()
$928
This China Airlines deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:45 am -
1 stop26h 05m
Thu 9/245:50 am -
2 stops26h 10m
Deal found 8/7![China Airlines logo]()
$1,064
This Delta deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/86:00 am -
2 stops38h 35m
Sat 9/1211:10 pm -
2 stops37h 30m
Deal found 8/10![Delta logo]()
$1,007
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated August 11, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated August 11, 2026 and is based on user searches.
This FlightHub deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 8/1211:55 pm -
1 stop27h 40m
Tue 8/256:45 pm -
1 stop36h 55m
Deal found 8/8![STARLUX Airlines logo]()
$777
This STARLUX Airlines deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/1411:55 pm -
1 stop20h 20m
Thu 9/36:05 pm -
1 stop37h 00m
Deal found 8/11![STARLUX Airlines logo]()
$785
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/1912:45 am -
1 stop18h 55m
Fri 9/410:50 am -
1 stop21h 50m
Deal found 8/11![China Airlines logo]()
$806
This oojo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/10![STARLUX Airlines logo]()
$774
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 stop26h 55m
Thu 9/105:50 pm -
1 stop37h 15m
Deal found 8/11![STARLUX Airlines logo]()
$782
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/211:30 pm -
1 stop20h 40m
Fri 9/1111:10 am -
1 stop19h 55m
Deal found 8/11![STARLUX Airlines logo]()
$794
This Justfly.com deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 9/212:45 am -
1 stop18h 55m
Wed 10/2811:00 am -
1 stop21h 05m
Deal found 8/10![China Airlines logo]()
$807
This Justfly.com deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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.
Sun 9/612:45 am -
1 stop25h 35m
Thu 9/1710:50 am -
1 stop21h 10m
Deal found 8/11![China Airlines logo]()
$808
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:45 am -
1 stop18h 55m
Tue 9/155:30 pm -
1 stop38h 30m
Deal found 8/11![China Airlines logo]()
$800
This KAYAK deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KAYAK is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/711:30 pm -
1 stop27h 25m
Sat 9/2611:30 am -
1 stop19h 35m
Deal found 8/10![STARLUX Airlines logo]()
$804
This oojo deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:30 pm -
1 stop20h 40m
Thu 9/245:50 pm -
1 stop37h 15m
Deal found 8/7![STARLUX Airlines logo]()
$779
This Rumbo deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Rumbo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:45 am -
1 stop18h 55m
Wed 9/3010:50 am -
1 stop21h 10m
Deal found 8/10![China Airlines logo]()
$798
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 11, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated August 11, 2026.
This FlightHub deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1711:55 pm -
1 stop27h 00m
Deal found 8/6![STARLUX Airlines logo]()
$404
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/119:45 pm -
1 stop28h 00m
Deal found 8/11![STARLUX Airlines logo]()
$405
This oojo deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 10/1011:30 pm -
1 stop20h 45m
Deal found 8/8![STARLUX Airlines logo]()
$408
This SmartFares deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” 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 10/1712:10 am -
1 stop26h 40m
Deal found 8/7![China Airlines logo]()
$409
This CheapOair deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am -
1 stop18h 55m
Deal found 8/11![China Airlines logo]()
$416
This Kissandfly.com deal was found by Cheapflights users on 8/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/99:45 pm -
1 stop21h 45m
Deal found 8/7![STARLUX Airlines logo]()
$418
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 11/2610:50 pm -
1 stop26h 25m
Deal found 8/11![China Airlines logo]()
$419
This FlightHub deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 9/2112:10 am -
1 stop26h 10m
Deal found 8/11![China Airlines logo]()
$420
This oojo deal was found by Cheapflights users on 8/11. Clicking the “Pick Dates” 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 8/11![STARLUX Airlines logo]()
$420
This FlightHub deal was found by Cheapflights users on 8/10. Clicking the “Pick Dates” 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 8/2611:55 pm -
1 stop20h 15m
Deal found 8/10![STARLUX Airlines logo]()
$420
This Mytrip deal was found by Cheapflights users on 8/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/812:10 am -
1 stop26h 10m
Deal found 8/6![China Airlines logo]()
$423
This oojo deal was found by Cheapflights users on 8/8. Clicking the “Pick Dates” 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 stop21h 45m
Deal found 8/8![STARLUX Airlines logo]()
$423
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 11, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $774 (oojo) |
One-way from | $404 (FlightHub) |
Popular in | December |
Cheapest in | March |
Average price | $739 |
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 August 11, 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
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Mon 10/19
11:30 pm-5:35 pm
1 stop28h 05m
Da Nang
Thu 10/22
6:45 pm-5:05 pm
1 stop36h 20m
$810
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Wed 9/2
12:45 am-4:30 pm
1 stop25h 45m
Da Nang
Mon 9/14
5:30 pm-6:40 pm
1 stop39h 10m
$832
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Fri 8/21
6:00 am-11:15 pm
2 stops27h 15m
Ho Chi Minh City
Tue 9/8
1:55 pm-10:04 pm
2 stops46h 09m
$842
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sun 8/23
6:00 am-11:15 pm
2 stops27h 15m
Ho Chi Minh City
Sat 9/5
1:55 pm-10:45 pm
2 stops46h 50m
$842
Quickest round-trip
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sun 8/30
12:45 am-9:40 am
1 stop18h 55m
Ho Chi Minh City
Wed 9/16
10:50 am-6:00 pm
1 stop21h 10m
$845
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Sat 9/5
11:30 pm-10:10 am
1 stop20h 40m
Hanoi Noibai
Mon 9/14
11:10 am-5:05 pm
1 stop19h 55m
$845
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Fri 10/2
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Mon 10/12
5:50 pm-6:00 pm
1 stop38h 10m
$877
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Wed 9/9
12:45 am-4:50 pm
1 stop26h 05m
Hanoi Noibai
Mon 9/14
11:30 am-6:40 pm
1 stop21h 10m
$877
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Tue 11/10
6:00 am-9:50 pm
2 stops24h 50m
Ho Chi Minh City
Tue 12/22
7:30 am-3:21 pm
2 stops22h 51m
$920
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Thu 11/12
6:00 am-12:15 am
2 stops27h 15m
Ho Chi Minh City
Fri 12/4
7:30 am-12:20 pm
2 stops19h 50m
$923
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-DAD
ONT-SGN
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-DAD
ONT-SGN
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 $1,601). 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 11, 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
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Entertainment
8.7
Crew
9.1
Food
8.6
Overall
8.8
Boarding
8.9
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 11, 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 August 11, 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$825 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$741 | Average$928 | FlexibilityNo cancel fee | On-timeN/A |