$413+ 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 11/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Dec 9 — Dec 161
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 November 9, 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 November 9, 2026.
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am -
2 stops23h 45m
Wed 12/911:05 pm -
2 stops33h 10m
Deal found 11/5![Delta logo]()
$782
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:20 am -
2 stops26h 30m
Thu 11/267:55 am -
2 stops24h 21m
Deal found 11/5![Delta logo]()
$837
This Korean Air deal was found by Cheapflights users on 11/5. 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 11/257:00 am -
2 stops38h 50m
Tue 12/87:55 am -
2 stops30h 04m
Deal found 11/5![Korean Air logo]()
$843
This Korean Air deal was found by Cheapflights users on 11/5. 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 11/245:56 pm -
2 stops51h 54m
Thu 12/102:05 pm -
2 stops47h 54m
Deal found 11/5![Korean Air logo]()
$849
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:00 am -
2 stops24h 25m
Wed 12/97:55 am -
2 stops24h 20m
Deal found 11/8![Korean Air logo]()
$897
This FlightHub deal was found by Cheapflights users on 11/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:50 pm -
1 stop26h 25m
Sun 12/1311:00 am -
1 stop21h 05m
Deal found 11/5![China Airlines logo]()
$900
This Korean Air deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am -
2 stops38h 50m
Mon 11/167:55 am -
2 stops30h 05m
Deal found 11/7![Korean Air logo]()
$902
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:56 pm -
2 stops38h 54m
Sat 12/127:55 am -
2 stops24h 20m
Deal found 11/8![Korean Air logo]()
$903
This Gotogate deal was found by Cheapflights users on 11/4. 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 11/2710:50 pm -
1 stop20h 10m
Sun 12/1311:00 am -
1 stop21h 05m
Deal found 11/4![China Airlines logo]()
$905
This Gotogate deal was found by Cheapflights users on 11/5. 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 11/3010:50 pm -
1 stop20h 10m
Tue 12/811:00 am -
1 stop21h 05m
Deal found 11/5![China Airlines logo]()
$909
This Gotogate deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:50 pm -
1 stop20h 10m
Mon 12/711:00 am -
1 stop21h 05m
Deal found 11/6![China Airlines logo]()
$910
This Globehunters deal was found by Cheapflights users on 11/5. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:50 pm -
1 stop20h 10m
Thu 12/105:15 pm -
1 stop38h 50m
Deal found 11/5![China Airlines logo]()
$913
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 November 9, 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 November 9, 2026.
This Korean Air deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/107:00 am -
2 stops40h 15m
Mon 2/153:45 pm -
2 stops38h 03m
Deal found 11/7![Korean Air logo]()
$783
This Delta deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 3/217:00 am -
2 stops24h 40m
Sat 4/310:55 pm -
2 stops50h 12m
Deal found 11/8![Delta logo]()
$843
This China Airlines deal was found by Cheapflights users on 11/4. 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.
Sat 1/910:50 pm -
1 stop26h 25m
Fri 2/511:00 am -
1 stop21h 05m
Deal found 11/4![China Airlines logo]()
$937
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/207:25 am -
2 stops24h 45m
Wed 1/277:30 am -
2 stops19h 49m
Deal found 11/8![United Airlines logo]()
$952
This Trip.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 2/2010:50 pm -
2 stops27h 15m
Tue 5/410:45 am -
2 stops45h 15m
Deal found 11/8![Multiple Airlines logo]()
$1,077
This Alaska Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Alaska Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/96:00 am -
2 stops38h 10m
Mon 1/2512:20 pm -
2 stops25h 23m
Deal found 11/9![Alaska Airlines logo]()
$1,402
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/47:00 am -
2 stops23h 40m
Sun 7/113:55 pm -
2 stops39h 22m
Deal found 11/9![Korean Air logo]()
$783
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/235:47 pm -
2 stops37h 53m
Fri 4/210:55 pm -
2 stops37h 53m
Deal found 11/8![Korean Air logo]()
$783
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/87:00 am -
2 stops23h 40m
Wed 2/1711:00 pm -
2 stops30h 48m
Deal found 11/5![Delta logo]()
$897
This China Airlines deal was found by Cheapflights users on 11/5. 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.
Sun 1/1710:50 pm -
1 stop26h 25m
Fri 2/511:00 am -
1 stop21h 05m
Deal found 11/5![China Airlines logo]()
$937
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 3/95:47 pm -
2 stops36h 53m
Sun 3/213:45 pm -
2 stops44h 58m
Deal found 11/8![Korean Air logo]()
$783
This United Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 11/289:25 am -
2 stops22h 45m
Fri 12/257:30 am -
2 stops22h 49m
Deal found 11/5![United Airlines logo]()
$952
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/43:35 pm -
2 stops31h 40m
Wed 2/1711:00 pm -
2 stops38h 39m
Deal found 11/5![Delta logo]()
$917
This United Airlines deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/289:25 am -
2 stops22h 45m
Fri 12/116:00 am -
3 stops24h 35m
Deal found 11/8![United Airlines logo]()
$965
This China Airlines deal was found by Cheapflights users on 11/5. 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.
Sat 4/2412:10 am -
1 stop20h 20m
Tue 5/411:30 am -
1 stop20h 30m
Deal found 11/5![China Airlines logo]()
$966
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/126:00 am -
2 stops25h 05m
Tue 4/2710:55 pm -
2 stops32h 22m
Deal found 11/7![Delta logo]()
$936
This Trip.com deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/910:50 pm -
2 stops30h 30m
Sat 1/237:30 am -
3 stops48h 35m
Deal found 11/7![Multiple Airlines logo]()
$1,148
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/127:25 am -
2 stops24h 45m
Tue 1/266:00 am -
2 stops21h 33m
Deal found 11/9![United Airlines logo]()
$968
This China Airlines deal was found by Cheapflights users on 11/4. 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.
Sun 1/1010:50 pm -
1 stop26h 25m
Tue 2/1611:00 am -
1 stop21h 05m
Deal found 11/4![China Airlines logo]()
$977
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/87:00 am -
2 stops25h 50m
Mon 1/257:55 am -
2 stops21h 55m
Deal found 11/9![Korean Air logo]()
$897
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 4/126:00 am -
2 stops25h 05m
Sun 5/210:55 pm -
2 stops37h 53m
Deal found 11/7![Delta logo]()
$936
This United Airlines deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 11/286:00 am -
2 stops26h 10m
Sat 12/266:00 am -
2 stops24h 19m
Deal found 11/9![United Airlines logo]()
$968
This Trip.com deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 1/210:50 pm -
2 stops30h 30m
Sat 1/1611:25 am -
2 stops44h 40m
Deal found 11/6![Multiple Airlines logo]()
$1,186
This China Airlines deal was found by Cheapflights users on 11/4. 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 12/110:50 pm -
1 stop26h 40m
Fri 12/1111:35 am -
1 stop20h 30m
Deal found 11/4![China Airlines logo]()
$992
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 1/317:00 am -
2 stops25h 50m
Mon 2/222:05 pm -
2 stops39h 43m
Deal found 11/9![Korean Air logo]()
$904
This United Airlines deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/87:25 am -
2 stops24h 45m
Sun 1/246:00 am -
2 stops18h 57m
Deal found 11/6![United Airlines logo]()
$968
This China Airlines deal was found by Cheapflights users on 11/5. 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 2/510:50 pm -
1 stop26h 35m
Thu 2/1810:25 am -
1 stop21h 40m
Deal found 11/5![China Airlines logo]()
$1,001
This Trip.com deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1810:50 pm -
2 stops31h 05m
Thu 5/69:50 pm -
2 stops34h 10m
Deal found 11/8![Multiple Airlines logo]()
$1,238
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
2 stops24h 25m
Wed 12/1611:45 pm -
2 stops32h 30m
Deal found 11/9![Korean Air logo]()
$931
This Delta deal was found by Cheapflights users on 11/4. 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.
Mon 11/307:00 am -
2 stops23h 45m
Tue 12/812:20 pm -
2 stops25h 39m
Deal found 11/4![Delta logo]()
$1,042
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated November 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated November 9, 2026 and is based on user searches.
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/66:20 am -
2 stops26h 30m
Thu 11/267:55 am -
2 stops24h 21m
Deal found 11/5![Delta logo]()
$837
This Korean Air deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/117:00 am -
2 stops38h 50m
Wed 11/187:55 am -
2 stops24h 21m
Deal found 11/7![Korean Air logo]()
$902
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/225:56 pm -
2 stops38h 54m
Sat 12/127:55 am -
2 stops24h 20m
Deal found 11/8![Korean Air logo]()
$903
This Korean Air deal was found by Cheapflights users on 11/5. 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 11/245:56 pm -
2 stops51h 54m
Sat 12/1211:40 pm -
2 stops38h 19m
Deal found 11/5![Korean Air logo]()
$849
This Korean Air deal was found by Cheapflights users on 11/5. 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 11/257:00 am -
2 stops38h 50m
Fri 12/117:55 am -
2 stops30h 04m
Deal found 11/5![Korean Air logo]()
$843
This Globehunters deal was found by Cheapflights users on 11/5. 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 Globehunters is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/2610:50 pm -
1 stop20h 10m
Thu 12/105:15 pm -
1 stop38h 50m
Deal found 11/5![China Airlines logo]()
$913
This Korean Air deal was found by Cheapflights users on 11/8. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 11/277:00 am -
2 stops24h 25m
Wed 12/97:55 am -
2 stops24h 20m
Deal found 11/8![Korean Air logo]()
$897
This Gotogate deal was found by Cheapflights users on 11/4. 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 11/2710:50 pm -
1 stop20h 10m
Sun 12/1311:00 am -
1 stop21h 05m
Deal found 11/4![China Airlines logo]()
$905
This Gotogate deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/2910:50 pm -
1 stop20h 10m
Mon 12/711:00 am -
1 stop21h 05m
Deal found 11/6![China Airlines logo]()
$910
This Delta deal was found by Cheapflights users on 11/5. 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 Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am -
2 stops23h 45m
Wed 12/911:05 pm -
2 stops33h 10m
Deal found 11/5![Delta logo]()
$782
This Gotogate deal was found by Cheapflights users on 11/5. 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 11/3010:50 pm -
1 stop20h 10m
Tue 12/811:00 am -
1 stop21h 05m
Deal found 11/5![China Airlines logo]()
$909
This FlightHub deal was found by Cheapflights users on 11/5. 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 FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 12/310:50 pm -
1 stop26h 25m
Sun 12/1311:00 am -
1 stop21h 05m
Deal found 11/5![China Airlines logo]()
$900
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 November 9, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated November 9, 2026.
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Korean Air logo]()
$413
This Delta deal was found by Cheapflights users on 11/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/177:00 am -
2 stops24h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/7![Delta logo]()
$424
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 2/87:00 am -
2 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$424
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Korean Air logo]()
$424
This Korean Air deal was found by Cheapflights users on 11/4. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/203:35 pm -
2 stops30h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/4![Korean Air logo]()
$427
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/257:00 am -
2 stops23h 40m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Korean Air logo]()
$427
This Delta deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/197:00 am -
2 stops25h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Delta logo]()
$432
This Korean Air deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 11/157:00 am -
2 stops25h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Korean Air logo]()
$435
This Korean Air deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/197:00 am -
2 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Korean Air logo]()
$435
This Delta deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/307:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Delta logo]()
$435
This Korean Air deal was found by Cheapflights users on 11/9. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
2 stops38h 50m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/9![Korean Air logo]()
$446
This Korean Air deal was found by Cheapflights users on 11/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 11/267:00 am -
2 stops40h 15m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 11/6![Korean Air logo]()
$447
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 November 9, 2026.
Most accurate provider | Ovago 3 stars |
|---|---|
Most trusted provider | Ovago 3 stars |
Round-trip from | $733 (SmartFares) |
One-way from | $413 (Korean Air) |
Popular in | December |
Cheapest in | March |
Average price | $796 |
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 November 9, 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
7:00 am-11:10 am
2 stops37h 10m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$413
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Mon 2/8
7:00 am-2:15 pm
2 stops40h 15m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$424
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Thu 2/25
7:00 am-9:40 pm
2 stops23h 40m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$427
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Tue 2/23
7:00 am-9:40 pm
2 stops23h 40m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$427
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Fri 2/19
7:00 am-2:15 pm
2 stops40h 15m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Wed 11/25
7:00 am-9:40 pm
2 stops23h 40m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Fri 3/12
5:47 pm-9:40 pm
2 stops36h 53m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
Quickest round-trip
OntarioDa Nang
ONT Ontario - DAD Da Nang
ONTDAD
Ontario
Thu 2/25
7:00 am-9:40 pm
2 stops23h 40m
Da Nang
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$451
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Sat 1/16
10:50 pm-4:15 pm
1 stop26h 25m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$506
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 11/25
6:00 am-12:15 am
2 stops27h 15m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$512
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-SGN
ONT-DAD
ONT-CXR
ONT-PQC
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-SGN
ONT-DAD
ONT-CXR
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 $762). Flying from Ontario to Vietnam in December is currently the most expensive (average of $1,588). 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 November 9, 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
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Overall
8.8
Comfort
8.8
Food
8.5
Crew
9.1
Entertainment
8.7
Boarding
8.8
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Related info for your journey
Find useful and relevant information for your journey from Ontario to Vietnam. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.
Browse thousands of different options on Cheapflights for your next trip
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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 November 9, 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 November 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$891 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$765 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$692 | Average$891 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$743 | Average$958 | FlexibilityNo cancel fee | On-timeN/A |