$395+ 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 8/21. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Sep 5 — Sep 121
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 6, 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 6, 2026.
This SmartFares deal was found by Cheapflights users on 8/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:30 pm -
1 stop20h 40m
Fri 9/1811:10 am -
1 stop19h 55m
Deal found 8/1![STARLUX Airlines logo]()
$764
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/211:30 pm -
1 stop28h 05m
Tue 9/86:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$774
This Justfly.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Fri 9/1111:30 pm -
1 stop28h 05m
Fri 9/186:45 pm -
1 stop36h 20m
Deal found 8/5![STARLUX Airlines logo]()
$777
This oojo deal was found by Cheapflights users on 8/1. 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.
Sat 9/1211:30 pm -
1 stop20h 40m
Thu 9/245:50 pm -
1 stop37h 15m
Deal found 8/1![STARLUX Airlines logo]()
$779
This oojo deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 10/511:30 pm -
1 stop27h 20m
Mon 10/1211:10 am -
1 stop19h 55m
Deal found 8/5![STARLUX Airlines logo]()
$781
This FlightHub deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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
Mon 9/1411:10 am -
1 stop19h 55m
Deal found 8/4![STARLUX Airlines logo]()
$782
This FlightHub deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 10/2111:30 pm -
1 stop20h 40m
Wed 11/411:40 am -
1 stop19h 15m
Deal found 8/4![STARLUX Airlines logo]()
$794
This Gotogate deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/1811:30 pm -
1 stop28h 05m
Fri 9/256:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$797
This STARLUX Airlines deal was found by Cheapflights users on 8/1. 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 STARLUX Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/2810:45 pm -
1 stop28h 30m
Sun 11/16:25 pm -
1 stop36h 30m
Deal found 8/1![STARLUX Airlines logo]()
$809
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm -
1 stop27h 40m
Sun 9/136:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$811
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Sat 10/312:10 am -
1 stop19h 30m
Thu 10/1510:50 am -
1 stop21h 10m
Deal found 8/5![China Airlines logo]()
$813
This Trip.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/410:50 pm -
1 stop20h 10m
Sat 12/511:00 am -
1 stop21h 05m
Deal found 8/5![China Airlines logo]()
$814
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 6, 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 6, 2026.
This China Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/312:45 am -
1 stop25h 35m
Tue 9/2210:50 am -
1 stop21h 10m
Deal found 8/5![China Airlines logo]()
$844
This Delta deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/236:00 am -
2 stops27h 15m
Sat 11/72:05 pm -
2 stops42h 07m
Deal found 8/2![Delta logo]()
$853
This Korean Air deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 stops25h 50m
Wed 10/288:00 am -
2 stops23h 12m
Deal found 8/2![Korean Air logo]()
$859
This Korean Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 stops25h 05m
Tue 11/248:00 am -
2 stops24h 13m
Deal found 8/5![Multiple Airlines logo]()
$908
This United Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 11/136:00 am -
2 stops25h 55m
Sat 11/217:30 am -
2 stops19h 59m
Deal found 8/5![United Airlines logo]()
$928
This Qatar Airways deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/1312:12 pm -
2 stops29h 03m
Tue 9/297:30 pm -
2 stops37h 33m
Deal found 8/5![Qatar Airways logo]()
$1,150
This China Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/2612:45 am -
1 stop18h 55m
Fri 10/3011:00 am -
1 stop21h 05m
Deal found 8/5![China Airlines logo]()
$844
This Korean Air deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 stops25h 05m
Sun 12/62:05 pm -
2 stops42h 08m
Deal found 8/2![Korean Air logo]()
$859
This Delta deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 10/316:20 am -
2 stops40h 30m
Fri 12/411:50 pm -
2 stops32h 23m
Deal found 8/4![Delta logo]()
$903
This Korean Air deal was found by Cheapflights users on 8/1. 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 11/187:04 am -
2 stops24h 21m
Thu 12/38:00 am -
2 stops24h 13m
Deal found 8/1![Korean Air logo]()
$859
This China Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/1710:00 am -
1 stop22h 00m
Deal found 8/5![China Airlines logo]()
$871
This Korean Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 9/26:20 am -
2 stops26h 55m
Tue 9/151:55 pm -
2 stops41h 24m
Deal found 8/5![Korean Air logo]()
$859
This United Airlines deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 10/218:03 am -
2 stops24h 12m
Tue 10/2712:25 am -
2 stops31h 36m
Deal found 8/2![United Airlines logo]()
$1,050
This China Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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
Tue 9/155:50 pm -
1 stop38h 10m
Deal found 8/5![China Airlines logo]()
$876
This China Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 stop25h 35m
Tue 9/2210:50 am -
1 stop21h 10m
Deal found 8/3![China Airlines logo]()
$878
This United Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 11/176:00 am -
2 stops26h 05m
Wed 11/2512:25 am -
2 stops29h 59m
Deal found 8/4![United Airlines logo]()
$1,101
This Delta deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/126:00 am -
2 stops38h 35m
Fri 9/2511:10 pm -
2 stops37h 30m
Deal found 8/3![Delta logo]()
$1,129
This Korean Air deal was found by Cheapflights users on 8/1. 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 10/286:20 am -
2 stops41h 55m
Sun 11/13:45 pm -
2 stops40h 27m
Deal found 8/1![Korean Air logo]()
$959
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/3112:45 am -
1 stop18h 15m
Wed 9/910:00 am -
1 stop22h 40m
Deal found 8/4![China Airlines logo]()
$878
This Korean Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 10/246:20 am -
2 stops41h 55m
Tue 11/243:45 pm -
2 stops40h 28m
Deal found 8/5![Korean Air logo]()
$959
This China Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/812:45 am -
1 stop18h 55m
Thu 9/2410:50 am -
1 stop21h 10m
Deal found 8/4![China Airlines logo]()
$879
This United Airlines deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 9/29:01 am -
2 stops23h 14m
Tue 9/811:35 pm -
2 stops32h 41m
Deal found 8/3![United Airlines logo]()
$1,200
This Korean Air deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 9/156:00 am -
2 stops25h 05m
Thu 9/173:55 pm -
2 stops44h 45m
Deal found 8/2![Korean Air logo]()
$959
This China Airlines deal was found by Cheapflights users on 8/1. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/212:45 am -
1 stop26h 05m
Mon 9/711:30 am -
1 stop21h 10m
Deal found 8/1![China Airlines logo]()
$913
This Korean Air deal was found by Cheapflights users on 8/1. 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.
Thu 9/36:20 am -
2 stops25h 15m
Mon 9/711:10 pm -
2 stops32h 09m
Deal found 8/1![Korean Air logo]()
$963
This Korean Air deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 1/177:00 am -
2 stops40h 15m
Tue 2/23:45 pm -
2 stops37h 12m
Deal found 8/5![Korean Air logo]()
$982
This China Airlines deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:45 am -
1 stop19h 45m
Wed 9/95:50 am -
2 stops26h 50m
Deal found 8/5![China Airlines logo]()
$1,035
This China Airlines deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/2412:45 am -
2 stops29h 45m
Tue 9/85:30 pm -
1 stop39h 10m
Deal found 8/4![China Airlines logo]()
$1,055
This China Airlines deal was found by Cheapflights users on 8/1. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/1512:10 am -
1 stop18h 50m
Tue 9/225:45 am -
2 stops26h 15m
Deal found 8/1![China Airlines logo]()
$1,078
This China Airlines deal was found by Cheapflights users on 8/1. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:50 pm -
1 stop19h 25m
Tue 12/226:00 am -
2 stops26h 05m
Deal found 8/1![China Airlines logo]()
$1,078
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated August 6, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated August 6, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/712:45 am -
1 stop25h 35m
Mon 8/3110:50 am -
1 stop21h 50m
Deal found 8/4![China Airlines logo]()
$816
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/812:45 am -
1 stop25h 35m
Sat 10/1010:50 am -
1 stop21h 10m
Deal found 8/4![China Airlines logo]()
$818
This Trip.com deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm -
1 stop27h 40m
Sun 9/136:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$811
This Gotogate deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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 8/3112:45 am -
1 stop25h 35m
Tue 9/1510:50 am -
1 stop21h 50m
Deal found 8/5![China Airlines logo]()
$815
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/211:30 pm -
1 stop28h 05m
Tue 9/86:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$774
This FlightHub deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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
Mon 9/1411:10 am -
1 stop19h 55m
Deal found 8/4![STARLUX Airlines logo]()
$782
This SmartFares deal was found by Cheapflights users on 8/1. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1111:30 pm -
1 stop20h 40m
Fri 9/1811:10 am -
1 stop19h 55m
Deal found 8/1![STARLUX Airlines logo]()
$764
This Justfly.com deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Fri 9/1111:30 pm -
1 stop28h 05m
Fri 9/186:45 pm -
1 stop36h 20m
Deal found 8/5![STARLUX Airlines logo]()
$777
This oojo deal was found by Cheapflights users on 8/1. 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.
Sat 9/1211:30 pm -
1 stop20h 40m
Fri 9/2511:10 am -
1 stop19h 55m
Deal found 8/1![STARLUX Airlines logo]()
$779
This lol.travel deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1212:45 am -
1 stop19h 45m
Tue 9/2911:30 am -
1 stop20h 30m
Deal found 8/5![China Airlines logo]()
$819
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/1412:45 am -
1 stop18h 55m
Fri 3/1211:00 am -
1 stop21h 05m
Deal found 8/4![China Airlines logo]()
$819
This Gotogate deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/1811:30 pm -
1 stop28h 05m
Fri 9/256:45 pm -
1 stop36h 20m
Deal found 8/4![STARLUX Airlines logo]()
$797
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 6, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated August 6, 2026.
This SmartFares deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Fri 8/2111:55 pm -
1 stop20h 20m
Deal found 8/5![STARLUX Airlines logo]()
$395
This SmartFares deal was found by Cheapflights users on 8/5. Clicking the “Pick Dates” 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.
Fri 8/216:20 am -
2 stops25h 50m
Deal found 8/5![Korean Air logo]()
$397
This SmartFares deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 9/2311:30 pm -
1 stop20h 40m
Deal found 8/4![STARLUX Airlines logo]()
$402
This FlightHub deal was found by Cheapflights users on 8/1. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:55 pm -
1 stop27h 00m
Deal found 8/1![STARLUX Airlines logo]()
$404
This FlightHub deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/1011:55 pm -
1 stop27h 00m
Deal found 8/4![STARLUX Airlines logo]()
$405
This oojo deal was found by Cheapflights users on 8/4. Clicking the “Pick Dates” 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 8/1411:55 pm -
1 stop27h 00m
Deal found 8/4![STARLUX Airlines logo]()
$406
This oojo deal was found by Cheapflights users on 8/2. Clicking the “Pick Dates” 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 11/79:45 pm -
1 stop21h 45m
Deal found 8/2![STARLUX Airlines logo]()
$408
This Booking.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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 stop21h 45m
Deal found 8/3![STARLUX Airlines logo]()
$410
This Kissandfly.com deal was found by Cheapflights users on 8/3. Clicking the “Pick Dates” 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.
Fri 10/211:30 pm -
1 stop20h 40m
Deal found 8/3![STARLUX Airlines logo]()
$411
This oojo deal was found by Cheapflights users on 8/1. 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.
Tue 11/2410:50 pm -
1 stop26h 25m
Deal found 8/1![China Airlines logo]()
$413
This oojo deal was found by Cheapflights users on 8/1. 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.
Mon 9/2112:10 am -
1 stop19h 30m
Deal found 8/1![China Airlines logo]()
$414
This CheapOair deal was found by Cheapflights users on 8/1. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1212:45 am -
1 stop25h 35m
Deal found 8/1![China Airlines logo]()
$416
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 6, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $764 (SmartFares) |
One-way from | $395 (SmartFares) |
Popular in | December |
Cheapest in | March |
Average price | $722 |
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 6, 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
Thu 9/3
12:45 am-4:20 pm
1 stop25h 35m
Ho Chi Minh City
Tue 9/22
10:50 am-6:00 pm
1 stop21h 10m
$844
Quickest round-trip
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 8/26
12:45 am-9:40 am
1 stop18h 55m
Ho Chi Minh City
Fri 10/30
11:00 am-6:05 pm
1 stop21h 05m
$844
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Fri 10/23
6:00 am-11:15 pm
2 stops27h 15m
Ho Chi Minh City
Sat 11/7
2:05 pm-5:12 pm
2 stops42h 07m
$853
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 10/17
6:20 am-10:10 pm
2 stops25h 50m
Ho Chi Minh City
Wed 10/28
8:00 am-5:12 pm
2 stops23h 12m
$859
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 11/2
6:20 am-10:25 pm
2 stops25h 05m
Ho Chi Minh City
Sun 12/6
2:05 pm-5:13 pm
2 stops42h 08m
$859
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 11/18
7:04 am-10:25 pm
2 stops24h 21m
Ho Chi Minh City
Thu 12/3
8:00 am-5:13 pm
2 stops24h 13m
$859
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 9/2
6:20 am-11:15 pm
2 stops26h 55m
Ho Chi Minh City
Tue 9/15
1:55 pm-5:19 pm
2 stops41h 24m
$859
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Mon 9/14
12:45 am-9:00 am
1 stop18h 15m
Da Nang
Thu 9/17
10:00 am-6:00 pm
1 stop22h 00m
$871
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Fri 9/11
12:45 am-4:50 pm
1 stop26h 05m
Hanoi Noibai
Tue 9/15
5:50 pm-6:00 pm
1 stop38h 10m
$876
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Mon 9/7
12:45 am-4:20 pm
1 stop25h 35m
Ho Chi Minh City
Tue 9/22
10:50 am-6:00 pm
1 stop21h 10m
$878
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from Ontario with our price prediction graph.
ONT-HAN
ONT-DAD
ONT-SGN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Vietnam
ONT-VN0
ONT-HAN
ONT-DAD
ONT-SGN
What is the cheapest month to book a flight from Ontario to Vietnam?
Currently, March is the cheapest month in which you can book a flight from Ontario to Vietnam (average of $737). Flying from Ontario to Vietnam in December is currently the most expensive (average of $1,596). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Ontario to Vietnam?
The best time to book flights from Ontario to Vietnam is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Vietnam
Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated August 6, 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.
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Crew
9.1
Boarding
8.9
Entertainment
8.7
Comfort
8.8
Food
8.6
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 6, 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 6, 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$690 | Average$822 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$742 | Average$917 | FlexibilityNo cancel fee | On-timeN/A |