$435+ Cheap flights from Ontario (ONT) to Vietnam
This is the cheapest round-trip flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 2/17. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Oct 29 — Nov 51
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 29, 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 29, 2026.
This Kissandfly.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Sun 10/256:20 am -
2 stops27h 30m
Sun 11/17:55 am -
2 stops24h 17m
Deal found 9/25![Korean Air logo]()
$766
This Jetabroad deal was found by Cheapflights users on 9/28. 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 Jetabroad is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/125:56 pm -
2 stops27h 54m
Thu 11/197:55 am -
2 stops24h 21m
Deal found 9/28![Korean Air logo]()
$770
This IEagle deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:20 am -
2 stops26h 05m
Tue 11/37:55 am -
2 stops29h 48m
Deal found 9/26![Korean Air logo]()
$774
This Delta deal was found by Cheapflights users on 9/28. 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.
Fri 11/277:00 am -
2 stops24h 25m
Sat 1/307:55 am -
2 stops29h 48m
Deal found 9/28![Delta logo]()
$777
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Mon 10/196:20 am -
2 stops25h 50m
Mon 11/1611:40 pm -
2 stops32h 36m
Deal found 9/28![Korean Air logo]()
$782
This Traveloka deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 12/210:50 pm -
1 stop20h 10m
Mon 4/195:30 pm -
1 stop38h 30m
Deal found 9/26![China Airlines logo]()
$786
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:20 am -
2 stops50h 55m
Sat 11/711:40 pm -
2 stops38h 03m
Deal found 9/27![Korean Air logo]()
$788
This Traveloka deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Traveloka is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:50 pm -
1 stop20h 10m
Fri 1/155:15 pm -
1 stop38h 50m
Deal found 9/24![China Airlines logo]()
$790
This Kissandfly.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Sun 10/2511:50 pm -
1 stop26h 25m
Sun 11/111:00 am -
1 stop21h 05m
Deal found 9/25![China Airlines logo]()
$791
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 11/257:00 am -
2 stops23h 45m
Tue 12/811:05 pm -
2 stops32h 17m
Deal found 9/25![Delta logo]()
$792
This Korean Air deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 stops25h 15m
Wed 10/2111:10 pm -
2 stops32h 02m
Deal found 9/25![Korean Air logo]()
$797
This Gotogate deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/1712:10 am -
1 stop19h 30m
Mon 11/25:15 pm -
1 stop38h 50m
Deal found 9/26![China Airlines logo]()
$800
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 29, 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 29, 2026.
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 3/57:00 am -
2 stops49h 50m
Wed 4/141:55 pm -
2 stops46h 48m
Deal found 9/27![Korean Air logo]()
$780
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 11/257:00 am -
2 stops23h 45m
Tue 12/811:05 pm -
2 stops32h 17m
Deal found 9/25![Delta logo]()
$792
This China Airlines deal was found by Cheapflights users on 9/29. 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.
Mon 11/910:50 pm -
1 stop20h 10m
Tue 2/911:00 am -
1 stop21h 05m
Deal found 9/29![China Airlines logo]()
$873
This United Airlines deal was found by Cheapflights users on 9/28. 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 2/146:00 am -
2 stops27h 15m
Mon 3/2911:15 pm -
2 stops37h 51m
Deal found 9/28![United Airlines logo]()
$887
This Korean Air deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 3/57:00 am -
2 stops38h 50m
Thu 4/1511:45 pm -
2 stops31h 32m
Deal found 9/26![Korean Air logo]()
$780
This Trip.com deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 12/269:45 pm -
1 stop28h 55m
Mon 1/46:40 pm -
1 stop36h 15m
Deal found 9/26![STARLUX Airlines logo]()
$1,579
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 11/256:00 am -
2 stops24h 45m
Sat 12/511:05 pm -
2 stops33h 10m
Deal found 9/25![Delta logo]()
$842
This Korean Air deal was found by Cheapflights users on 9/28. 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 11/76:20 am -
2 stops25h 05m
Thu 1/147:55 am -
2 stops21h 02m
Deal found 9/28![Korean Air logo]()
$782
This China Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 11/810:50 pm -
1 stop20h 45m
Thu 11/1211:35 am -
1 stop20h 30m
Deal found 9/25![China Airlines logo]()
$878
This United Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 3/16:00 am -
2 stops24h 50m
Fri 4/27:00 am -
2 stops24h 47m
Deal found 9/26![United Airlines logo]()
$902
This Korean Air deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 stops27h 30m
Mon 11/302:05 pm -
2 stops42h 10m
Deal found 9/25![Korean Air logo]()
$782
This Delta deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/146:00 am -
2 stops25h 05m
Sat 10/3111:00 pm -
2 stops32h 23m
Deal found 9/26![Delta logo]()
$877
This China Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 12/310:50 pm -
1 stop20h 45m
Fri 4/2311:30 am -
1 stop20h 30m
Deal found 9/26![China Airlines logo]()
$878
This United Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 2/216:00 am -
2 stops24h 50m
Sun 4/187:00 am -
2 stops22h 27m
Deal found 9/25![United Airlines logo]()
$902
This Qatar Airways deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Fri 10/911:13 am -
3 stops34h 42m
Mon 10/192:05 pm -
3 stops37h 25m
Deal found 9/25![Multiple Airlines logo]()
$2,001
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Thu 2/183:30 pm -
2 stops41h 20m
Sat 4/37:30 am -
2 stops23h 47m
Deal found 9/28![Korean Air logo]()
$782
This Delta deal was found by Cheapflights users on 9/28. 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 11/236:00 am -
2 stops24h 40m
Fri 12/2511:00 pm -
2 stops32h 58m
Deal found 9/28![Delta logo]()
$877
This China Airlines deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 12/210:50 pm -
1 stop20h 45m
Sat 4/2411:30 am -
1 stop20h 30m
Deal found 9/26![China Airlines logo]()
$904
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/106:00 am -
2 stops27h 15m
Wed 2/106:00 am -
2 stops24h 27m
Deal found 9/27![United Airlines logo]()
$905
This Delta deal was found by Cheapflights users on 9/28. 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.
Sun 11/226:00 am -
2 stops24h 40m
Fri 12/2511:00 pm -
2 stops38h 37m
Deal found 9/28![Delta logo]()
$877
This United Airlines deal was found by Cheapflights users on 9/27. 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 United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 3/276:00 am -
2 stops26h 05m
Fri 4/27:00 am -
2 stops19h 20m
Deal found 9/27![United Airlines logo]()
$910
This Korean Air deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 stops25h 15m
Mon 10/2611:05 pm -
2 stops37h 38m
Deal found 9/24![Korean Air logo]()
$857
This China Airlines deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/1612:10 am -
1 stop26h 40m
Tue 10/2011:30 am -
1 stop20h 30m
Deal found 9/24![China Airlines logo]()
$984
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 11/81:35 pm -
2 stops41h 05m
Sun 11/1511:00 pm -
2 stops33h 16m
Deal found 9/24![Delta logo]()
$912
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Wed 11/257:00 am -
2 stops38h 50m
Mon 1/117:55 am -
2 stops21h 02m
Deal found 9/28![Korean Air logo]()
$873
This Delta deal was found by Cheapflights users on 9/27. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/177:00 am -
2 stops23h 40m
Thu 3/411:00 pm -
2 stops39h 48m
Deal found 9/27![Delta logo]()
$927
This China Airlines deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 11/2510:50 pm -
1 stop20h 45m
Mon 12/77:00 pm -
2 stops37h 05m
Deal found 9/25![China Airlines logo]()
$1,034
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:00 am -
2 stops24h 25m
Fri 12/411:45 pm -
2 stops32h 30m
Deal found 9/27![Korean Air logo]()
$880
This China Airlines deal was found by Cheapflights users on 9/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 pm -
2 stops41h 30m
Thu 11/510:25 am -
1 stop21h 40m
Deal found 9/23![China Airlines logo]()
$1,050
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
2 stops24h 25m
Fri 12/411:45 pm -
2 stops32h 30m
Deal found 9/27![Korean Air logo]()
$880
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated September 29, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated September 29, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 9/27. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/126:20 am -
2 stops50h 55m
Sat 11/711:40 pm -
2 stops38h 03m
Deal found 9/27![Korean Air logo]()
$788
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 10/146:00 am -
2 stops25h 35m
Tue 10/2011:10 pm -
2 stops38h 45m
Deal found 9/25![Delta logo]()
$792
This Gotogate deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” 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 10/1712:10 am -
1 stop19h 30m
Mon 11/25:15 pm -
1 stop38h 50m
Deal found 9/26![China Airlines logo]()
$800
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Mon 10/196:20 am -
2 stops25h 50m
Mon 11/1611:40 pm -
2 stops32h 36m
Deal found 9/28![Korean Air logo]()
$782
This Korean Air deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 stops25h 15m
Thu 10/2212:05 pm -
2 stops24h 38m
Deal found 9/25![Korean Air logo]()
$797
This Justfly.com deal was found by Cheapflights users on 9/27. 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 Justfly.com 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 11/35:15 pm -
1 stop38h 50m
Deal found 9/27![China Airlines logo]()
$805
This Justfly.com deal was found by Cheapflights users on 9/27. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/2212:10 am -
1 stop19h 30m
Fri 10/3011:00 am -
1 stop21h 05m
Deal found 9/27![China Airlines logo]()
$803
This Delta deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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 10/246:20 am -
2 stops27h 30m
Sun 11/87:55 am -
2 stops24h 17m
Deal found 9/25![Delta logo]()
$777
This Kissandfly.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Sun 10/256:20 am -
2 stops27h 30m
Sun 11/17:55 am -
2 stops24h 17m
Deal found 9/25![Korean Air logo]()
$766
This Kissandfly.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Sun 10/2511:50 pm -
1 stop26h 25m
Sun 11/111:00 am -
1 stop21h 05m
Deal found 9/25![China Airlines logo]()
$791
This Delta deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 10/276:20 am -
2 stops40h 30m
Tue 11/102:05 pm -
2 stops48h 44m
Deal found 9/24![Delta logo]()
$807
This IEagle deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure IEagle is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/286:20 am -
2 stops26h 05m
Tue 11/37:55 am -
2 stops29h 48m
Deal found 9/26![Korean Air logo]()
$774
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 29, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated September 29, 2026.
This Justfly.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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 2/1710:50 pm -
1 stop26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![China Airlines logo]()
$435
This Delta deal was found by Cheapflights users on 9/28. 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.
Wed 11/257:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Delta logo]()
$435
This FlightHub deal was found by Cheapflights users on 9/28. 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.
Tue 1/1210:50 pm -
1 stop26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![China Airlines logo]()
$437
This Korean Air deal was found by Cheapflights users on 9/28. 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.
Thu 11/267:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![Korean Air logo]()
$437
This Booking.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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.
Fri 11/610:50 pm -
1 stop20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![China Airlines logo]()
$439
This Booking.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” 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.
Tue 10/1312:10 am -
1 stop19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![China Airlines logo]()
$440
This Booking.com deal was found by Cheapflights users on 9/25. Clicking the “Pick Dates” 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.
Sat 10/1012:10 am -
1 stop19h 30m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/25![China Airlines logo]()
$441
This Mytrip deal was found by Cheapflights users on 9/28. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/1711:50 pm -
1 stop26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![China Airlines logo]()
$445
This FlightHub deal was found by Cheapflights users on 9/27. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 pm -
1 stop20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/27![China Airlines logo]()
$448
This Korean Air deal was found by Cheapflights users on 9/26. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/226:20 am -
2 stops49h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/26![Korean Air logo]()
$450
This Booking.com deal was found by Cheapflights users on 9/28. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/1110:50 pm -
1 stop20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/28![China Airlines logo]()
$451
This Kiwi.com deal was found by Cheapflights users on 9/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 12/78:29 am -
3 stops47h 31m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/24![Multiple Airlines logo]()
$452
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 29, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $766 (Kissandfly.com) |
One-way from | $435 (Justfly.com) |
Popular in | December |
Cheapest in | March |
Average price | $776 |
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 29, 2026.
Use the filters below to find and compare flights from Ontario to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Wed 11/25
6:00 am-9:45 pm
2 stops24h 45m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Fri 11/27
7:00 am-11:10 am
2 stops37h 10m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Tue 10/27
6:20 am-11:10 am
2 stops38h 50m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Sat 11/28
7:00 am-11:10 am
2 stops37h 10m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Mon 11/9
7:00 am-9:45 pm
2 stops23h 45m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Sun 11/29
5:56 pm-11:10 am
2 stops26h 14m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 10/28
6:00 am-11:50 pm
2 stops27h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$457
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 10/31
6:20 am-12:50 pm
2 stops40h 30m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$457
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Thu 11/12
6:00 am-11:50 pm
2 stops26h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$457
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Thu 12/31
11:59 am-12:50 pm
2 stops33h 51m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$459
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-HAN
ONT-PQC
ONT-DAD
ONT-CXR
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-HAN
ONT-PQC
ONT-DAD
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 $739). Flying from Ontario to Vietnam in December is currently the most expensive (average of $1,560). 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 29, 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
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
8.8
Crew
9.1
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Comfort
8.8
Food
8.5
Overall
8.7
Entertainment
8.7
Boarding
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
See prices for flight routes from nearby airports that may be better suited for you.
Complete your trip
Complete your trip to Vietnam by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Vietnam by cabin class
Find flights from Ontario to Vietnam, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Ontario and Vietnam flights
Browse other Ontario and Vietnam flight options. Last updated on September 29, 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 29, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$891 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$689 | Average$865 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$743 | Average$927 | FlexibilityNo cancel fee | On-timeN/A |