$415+ 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 10/20. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Oct 2 — Oct 91
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 September 2, 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 September 2, 2026.
This lastminute.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 stop19h 30m
Sun 10/410:50 am -
1 stop21h 10m
Deal found 8/31![China Airlines logo]()
$776
This Expedia deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Expedia is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/910:50 pm -
1 stop26h 25m
Mon 12/711:00 am -
1 stop21h 05m
Deal found 9/1![China Airlines logo]()
$783
This Expedia deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Thu 11/127:00 am -
2 stops24h 25m
Sat 12/511:50 pm -
2 stops32h 25m
Deal found 8/31![Korean Air logo]()
$788
This oojo deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:10 am -
1 stop26h 10m
Tue 10/1310:50 am -
1 stop21h 10m
Deal found 8/28![China Airlines logo]()
$797
This FlightHub deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop19h 30m
Wed 10/710:50 am -
1 stop21h 10m
Deal found 8/28![China Airlines logo]()
$798
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/1312:45 am -
1 stop18h 55m
Mon 10/1910:50 am -
1 stop21h 10m
Deal found 8/31![China Airlines logo]()
$799
This CheapOair deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 am -
1 stop19h 30m
Thu 10/155:30 pm -
1 stop38h 30m
Deal found 8/28![China Airlines logo]()
$800
This Gotogate deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Tue 9/2912:10 am -
1 stop19h 30m
Mon 11/1611:00 am -
1 stop21h 05m
Deal found 8/31![China Airlines logo]()
$801
This FlightHub deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm -
1 stop27h 25m
Mon 9/1411:30 am -
1 stop19h 35m
Deal found 8/28![STARLUX Airlines logo]()
$802
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/711:30 pm -
1 stop20h 45m
Sun 9/206:05 pm -
1 stop37h 00m
Deal found 8/31![STARLUX Airlines logo]()
$803
This Orbitz deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz 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 2/285:50 pm -
1 stop37h 05m
Deal found 9/1![STARLUX Airlines logo]()
$804
This CheapOair deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Sun 9/2012:10 am -
1 stop26h 20m
Mon 10/125:30 pm -
1 stop38h 30m
Deal found 8/31![China Airlines logo]()
$825
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 September 2, 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 September 2, 2026.
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/236:00 am -
2 stops27h 15m
Tue 10/131:55 pm -
2 stops41h 17m
Deal found 8/29![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/46:00 am -
2 stops26h 10m
Thu 4/17:30 am -
2 stops23h 47m
Deal found 8/29![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:50 pm -
1 stop20h 10m
Sun 12/135:15 pm -
1 stop38h 50m
Deal found 8/31![China Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 3/15:00 am -
2 stops27h 05m
Sun 3/1412:25 am -
2 stops29h 02m
Deal found 8/28![United Airlines logo]()
$901
This Delta deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:20 am -
2 stops26h 00m
Sun 12/68:00 am -
2 stops30h 58m
Deal found 8/28![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:00 am -
2 stops26h 10m
Sun 3/288:00 am -
2 stops23h 17m
Deal found 8/30![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 11/2410:50 pm -
1 stop20h 10m
Sun 12/135:15 pm -
1 stop38h 50m
Deal found 8/31![China Airlines logo]()
$845
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/196:20 am -
2 stops26h 55m
Fri 10/308:00 am -
2 stops23h 12m
Deal found 8/29![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:20 am -
2 stops26h 05m
Mon 11/3011:50 pm -
2 stops32h 25m
Deal found 8/28![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 11/2910:50 pm -
1 stop26h 25m
Thu 12/1711:00 am -
1 stop21h 05m
Deal found 8/31![China Airlines logo]()
$845
This United Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2111:10 am -
2 stops45h 05m
Sat 11/712:25 am -
2 stops37h 23m
Deal found 8/30![United Airlines logo]()
$957
This Delta deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:00 pm -
2 stops39h 15m
Sat 11/78:00 am -
2 stops29h 11m
Deal found 9/1![Delta logo]()
$812
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 11/2810:50 pm -
1 stop26h 25m
Thu 12/1711:00 am -
1 stop21h 05m
Deal found 8/31![China Airlines logo]()
$845
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:00 am -
2 stops26h 10m
Fri 9/117:30 am -
2 stops28h 34m
Deal found 8/29![Delta logo]()
$827
This Korean Air deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/316:20 am -
2 stops25h 10m
Wed 11/411:20 pm -
2 stops32h 52m
Deal found 8/28![Korean Air logo]()
$912
This China Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/3111:50 pm -
1 stop26h 35m
Wed 11/410:25 am -
1 stop21h 40m
Deal found 8/29![China Airlines logo]()
$872
This Korean Air deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/177:00 am -
2 stops40h 15m
Thu 3/43:45 pm -
2 stops45h 58m
Deal found 9/1![Korean Air logo]()
$912
This United Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/85:00 am -
2 stops27h 05m
Tue 11/1712:25 am -
2 stops27h 04m
Deal found 8/28![United Airlines logo]()
$1,178
This Korean Air deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/197:00 am -
2 stops23h 30m
Sun 3/1411:20 pm -
2 stops31h 57m
Deal found 9/1![Korean Air logo]()
$912
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 -
1 stop26h 40m
Tue 12/111:35 am -
1 stop20h 30m
Deal found 8/31![China Airlines logo]()
$960
This Korean Air deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/26:20 am -
2 stops40h 55m
Thu 11/53:45 pm -
2 stops40h 27m
Deal found 9/1![Korean Air logo]()
$912
This Delta deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/236:20 am -
2 stops25h 15m
Mon 11/1611:05 pm -
2 stops33h 14m
Deal found 8/30![Delta logo]()
$1,026
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/1512:10 am -
1 stop26h 40m
Sat 11/2811:35 am -
1 stop20h 30m
Deal found 8/31![China Airlines logo]()
$1,021
This China Airlines deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/2310:50 pm -
2 stops30h 25m
Wed 5/1210:00 am -
1 stop22h 00m
Deal found 8/29![China Airlines logo]()
$1,079
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/2510:50 pm -
1 stop20h 45m
Sun 3/146:00 am -
2 stops26h 05m
Deal found 8/31![China Airlines logo]()
$1,089
This Korean Air deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 1/277:00 am -
2 stops40h 15m
Wed 2/103:45 pm -
2 stops37h 12m
Deal found 8/31![Korean Air logo]()
$1,202
This China Airlines deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 2/1910:50 pm -
1 stop26h 35m
Sun 2/287:55 am -
2 stops24h 10m
Deal found 8/31![China Airlines logo]()
$1,133
This China Airlines deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/1610:50 pm -
2 stops24h 30m
Mon 11/3011:35 am -
1 stop20h 30m
Deal found 8/30![China Airlines logo]()
$1,164
This ScholarTrip deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/1310:50 pm -
2 stops43h 30m
Fri 11/2711:35 am -
1 stop20h 30m
Deal found 8/28![China Airlines logo]()
$1,192
This China Airlines deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/610:50 pm -
1 stop26h 40m
Sat 11/285:55 am -
2 stops26h 10m
Deal found 8/28![China Airlines logo]()
$1,206
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated September 2, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated September 2, 2026 and is based on user searches.
This Justfly.com deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm -
1 stop27h 25m
Tue 11/105:50 pm -
1 stop37h 05m
Deal found 8/28![STARLUX Airlines logo]()
$802
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/711:30 pm -
1 stop20h 45m
Sun 9/206:05 pm -
1 stop37h 00m
Deal found 8/31![STARLUX Airlines logo]()
$803
This oojo deal was found by Cheapflights users on 8/27. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:45 am -
1 stop18h 55m
Mon 11/235:15 pm -
1 stop38h 50m
Deal found 8/27![China Airlines logo]()
$806
This oojo deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/1312:45 am -
1 stop18h 55m
Mon 10/1910:50 am -
1 stop21h 10m
Deal found 8/31![China Airlines logo]()
$799
This lastminute.com deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 stop19h 30m
Sun 10/410:50 am -
1 stop21h 10m
Deal found 8/31![China Airlines logo]()
$776
This FlightHub deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
1 stop19h 30m
Wed 10/710:50 am -
1 stop21h 10m
Deal found 8/28![China Airlines logo]()
$798
This CheapOair deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Sun 9/2012:10 am -
1 stop26h 20m
Mon 10/125:30 pm -
1 stop38h 30m
Deal found 8/31![China Airlines logo]()
$825
This Orbitz deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Orbitz 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 2/285:50 pm -
1 stop37h 05m
Deal found 9/1![STARLUX Airlines logo]()
$804
This oojo deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2212:10 am -
1 stop26h 10m
Tue 10/1310:50 am -
1 stop21h 10m
Deal found 8/28![China Airlines logo]()
$797
This Gotogate deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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.
Tue 9/2912:10 am -
1 stop19h 30m
Thu 11/1911:00 am -
1 stop21h 05m
Deal found 8/31![China Airlines logo]()
$801
This CheapOair deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 am -
1 stop19h 30m
Thu 10/155:30 pm -
1 stop38h 30m
Deal found 8/28![China Airlines logo]()
$800
This oojo deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/2311:30 pm -
1 stop21h 00m
Fri 10/3011:40 am -
1 stop19h 15m
Deal found 9/1![STARLUX Airlines logo]()
$805
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 September 2, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated September 2, 2026.
This Delta deal was found by Cheapflights users on 9/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/206:20 am -
2 stops25h 15m
Deal found 9/1![Delta logo]()
$415
This Delta deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/286:00 am -
2 stops25h 35m
Deal found 8/31![Delta logo]()
$419
This Korean Air deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 9/296:00 am -
2 stops25h 35m
Deal found 8/31![Korean Air logo]()
$421
This Delta deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/135:15 pm -
2 stops38h 20m
Deal found 8/29![Delta logo]()
$430
This Booking.com deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/911:30 pm -
1 stop20h 45m
Deal found 8/29![STARLUX Airlines logo]()
$431
This oojo deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo 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 8/28![STARLUX Airlines logo]()
$434
This FlightHub deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3011:30 pm -
1 stop27h 25m
Deal found 8/28![STARLUX Airlines logo]()
$435
This oojo deal was found by Cheapflights users on 8/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/511:30 pm -
1 stop20h 45m
Deal found 8/30![STARLUX Airlines logo]()
$437
This oojo deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/712:45 am -
1 stop18h 55m
Deal found 8/28![China Airlines logo]()
$438
This SmartFares deal was found by Cheapflights users on 8/31. Clicking the “Pick Dates” 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 8/31![China Airlines logo]()
$438
This Mytrip deal was found by Cheapflights users on 8/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/2711:50 pm -
1 stop20h 10m
Deal found 8/29![China Airlines logo]()
$440
This CheapOair deal was found by Cheapflights users on 8/28. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/2912:10 am -
1 stop26h 10m
Deal found 8/28![China Airlines logo]()
$444
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 September 2, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $776 (lastminute.com) |
One-way from | $415 (Delta) |
Popular in | December |
Cheapest in | March |
Average price | $753 |
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 September 2, 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
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 9/23
6:00 am-11:15 pm
2 stops27h 15m
Ho Chi Minh City
Tue 10/13
1:55 pm-5:12 pm
2 stops41h 17m
$807
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 11/2
6:20 am-11:20 pm
2 stops26h 00m
Ho Chi Minh City
Sun 12/6
8:00 am-11:58 pm
2 stops30h 58m
$807
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 10/19
6:20 am-11:15 pm
2 stops26h 55m
Ho Chi Minh City
Fri 10/30
8:00 am-5:12 pm
2 stops23h 12m
$807
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sun 10/4
6:00 am-10:10 pm
2 stops26h 10m
Ho Chi Minh City
Thu 4/1
7:30 am-5:17 pm
2 stops23h 47m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 9/28
6:00 am-10:10 pm
2 stops26h 10m
Ho Chi Minh City
Sun 3/28
8:00 am-5:17 pm
2 stops23h 17m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Fri 10/30
6:20 am-10:25 pm
2 stops26h 05m
Ho Chi Minh City
Mon 11/30
11:50 pm-5:15 pm
2 stops32h 25m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 10/12
6:00 pm-11:15 pm
2 stops39h 15m
Ho Chi Minh City
Sat 11/7
8:00 am-10:11 pm
2 stops29h 11m
$812
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Tue 9/8
6:00 am-10:10 pm
2 stops26h 10m
Ho Chi Minh City
Fri 9/11
7:30 am-10:04 pm
2 stops28h 34m
$827
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Thu 11/26
10:50 pm-10:00 am
1 stop20h 10m
Ho Chi Minh City
Sun 12/13
5:15 pm-5:05 pm
1 stop38h 50m
$845
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Tue 11/24
10:50 pm-10:00 am
1 stop20h 10m
Ho Chi Minh City
Sun 12/13
5:15 pm-5:05 pm
1 stop38h 50m
$845
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-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 $1,608). 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 September 2, 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
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Food
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Food
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Food
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Food
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Food
8.5
Entertainment
8.7
Overall
8.7
Boarding
8.8
Comfort
8.8
Crew
9.1
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 September 2, 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 September 2, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$881 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$691 | Average$844 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$742 | Average$969 | FlexibilityNo cancel fee | On-timeN/A |