$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 1/25. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Oct 7 — Oct 141
Round-trip
1 adult, Economy
We work with more than 300 partners to bring you better travel deals
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
Cheapest
Best
Last-minute
One-way
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 7, 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 7, 2026.
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Sun 11/1510:50 pm -
1 stop20h 10m
Sun 1/1711:00 am -
1 stop21h 05m
Deal found 9/7![China Airlines logo]()
$789
This AirNGo deal was found by Cheapflights users on 9/5. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am -
2 stops26h 10m
Thu 9/247:30 am -
2 stops29h 10m
Deal found 9/5![Korean Air logo]()
$793
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:10 am -
1 stop26h 10m
Sat 11/75:15 pm -
1 stop38h 50m
Deal found 9/4![China Airlines logo]()
$800
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:10 am -
1 stop26h 10m
Mon 10/2611:00 am -
1 stop21h 05m
Deal found 9/3![China Airlines logo]()
$801
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Fri 10/912:10 am -
1 stop19h 30m
Sat 10/2410:50 am -
1 stop21h 10m
Deal found 9/7![China Airlines logo]()
$803
This Delta deal was found by Cheapflights users on 9/4. 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.
Tue 9/296:00 am -
2 stops27h 15m
Wed 10/147:30 am -
2 stops23h 42m
Deal found 9/4![Delta logo]()
$804
This CheapOair deal was found by Cheapflights users on 9/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:10 am -
1 stop26h 10m
Mon 11/235:15 pm -
1 stop38h 50m
Deal found 9/5![China Airlines logo]()
$805
This Delta deal was found by Cheapflights users on 9/7. 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.
Fri 11/276:00 am -
2 stops25h 25m
Mon 12/147:55 am -
2 stops24h 20m
Deal found 9/7![Delta logo]()
$807
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Thu 11/1210:50 pm -
1 stop20h 10m
Thu 12/245:15 pm -
1 stop38h 50m
Deal found 9/4![China Airlines logo]()
$808
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Wed 10/2112:10 am -
1 stop20h 20m
Sun 11/811:35 am -
1 stop20h 30m
Deal found 9/7![China Airlines logo]()
$808
This Gotogate deal was found by Cheapflights users on 9/4. 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.
Wed 11/2510:50 pm -
1 stop20h 10m
Fri 12/115:15 pm -
1 stop38h 50m
Deal found 9/4![China Airlines logo]()
$809
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:10 am -
1 stop19h 30m
Wed 1/2711:00 am -
1 stop21h 05m
Deal found 9/3![China Airlines logo]()
$810
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 7, 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 7, 2026.
This Delta deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/257:00 am -
2 stops38h 50m
Tue 12/82:05 pm -
2 stops42h 10m
Deal found 9/7![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 9/6. 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 1/177:00 am -
2 stops25h 50m
Mon 3/111:40 pm -
2 stops29h 17m
Deal found 9/6![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 3/410:50 pm -
1 stop26h 25m
Mon 5/310:50 am -
1 stop21h 10m
Deal found 9/7![China Airlines logo]()
$827
This United Airlines deal was found by Cheapflights users on 9/5. 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.
Mon 10/199:25 am -
2 stops24h 50m
Thu 10/297:30 am -
2 stops22h 03m
Deal found 9/5![United Airlines logo]()
$887
This Mytrip deal was found by Cheapflights users on 9/7. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/2012:10 am -
2 stops28h 10m
Thu 9/248:40 am -
2 stops46h 25m
Deal found 9/7![Multiple Airlines logo]()
$1,188
This Delta deal was found by Cheapflights users on 9/4. 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 10/246:20 am -
2 stops27h 00m
Sat 10/318:00 am -
2 stops28h 43m
Deal found 9/4![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 9/3. 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 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 10m
Deal found 9/3![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 9/6. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/210:50 pm -
1 stop19h 25m
Thu 11/510:25 am -
1 stop21h 40m
Deal found 9/6![China Airlines logo]()
$870
This United Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/256:00 am -
2 stops27h 15m
Wed 12/167:30 am -
2 stops22h 53m
Deal found 9/7![United Airlines logo]()
$887
This Delta deal was found by Cheapflights users on 9/3. 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.
Wed 9/236:00 am -
2 stops27h 15m
Tue 10/131:55 pm -
2 stops41h 17m
Deal found 9/3![Delta logo]()
$807
This Korean Air deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/306:20 am -
2 stops26h 05m
Mon 11/3011:40 pm -
2 stops32h 35m
Deal found 9/7![Korean Air logo]()
$812
This China Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 2/1910:50 pm -
1 stop20h 10m
Sat 3/2711:00 am -
1 stop21h 05m
Deal found 9/7![China Airlines logo]()
$875
This Delta deal was found by Cheapflights users on 9/3. 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.
Mon 2/156:00 am -
2 stops39h 50m
Wed 3/2411:50 pm -
2 stops36h 53m
Deal found 9/3![Delta logo]()
$857
This Korean Air deal was found by Cheapflights users on 9/2. 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 10/206:20 am -
2 stops38h 15m
Sun 11/812:20 pm -
2 stops43h 59m
Deal found 9/2![Korean Air logo]()
$857
This United Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 10/229:25 am -
2 stops22h 50m
Sat 11/712:25 am -
2 stops32h 31m
Deal found 9/3![United Airlines logo]()
$951
This China Airlines deal was found by Cheapflights users on 9/3. 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.
Thu 9/2412:10 am -
1 stop20h 20m
Sun 11/2211:35 am -
1 stop20h 30m
Deal found 9/3![China Airlines logo]()
$893
This Korean Air deal was found by Cheapflights users on 9/6. 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.
Wed 10/216:20 am -
2 stops25h 15m
Sun 11/811:05 pm -
2 stops33h 14m
Deal found 9/6![Korean Air logo]()
$857
This United Airlines deal was found by Cheapflights users on 9/2. 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.
Tue 10/208:03 am -
2 stops24h 12m
Sat 11/712:25 am -
2 stops32h 31m
Deal found 9/2![United Airlines logo]()
$951
This Delta deal was found by Cheapflights users on 9/2. 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.
Sun 10/186:00 am -
2 stops25h 35m
Sun 11/1511:05 pm -
2 stops33h 14m
Deal found 9/2![Delta logo]()
$902
This Delta deal was found by Cheapflights users on 9/4. 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 2/156:00 am -
2 stops24h 30m
Mon 3/1511:20 pm -
2 stops37h 23m
Deal found 9/4![Delta logo]()
$907
This Korean Air deal was found by Cheapflights users on 9/5. 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 3/27:00 am -
2 stops40h 15m
Thu 5/610:55 pm -
2 stops32h 22m
Deal found 9/5![Korean Air logo]()
$912
This China Airlines deal was found by Cheapflights users on 9/4. 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 10/312:10 am -
1 stop26h 40m
Sun 10/116:00 am -
2 stops26h 00m
Deal found 9/4![China Airlines logo]()
$1,047
This Delta deal was found by Cheapflights users on 9/5. 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 11/276:00 am -
2 stops41h 15m
Wed 12/211:20 pm -
2 stops39h 38m
Deal found 9/5![Delta logo]()
$907
This Korean Air deal was found by Cheapflights users on 9/5. 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.
Mon 11/26:20 am -
2 stops40h 55m
Thu 11/53:45 pm -
2 stops40h 27m
Deal found 9/5![Korean Air logo]()
$912
This Delta deal was found by Cheapflights users on 9/7. 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.
Tue 9/229:52 am -
2 stops58h 43m
Thu 10/811:10 pm -
2 stops32h 02m
Deal found 9/7![Delta logo]()
$908
This Korean Air deal was found by Cheapflights users on 9/7. 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 2/177:00 am -
2 stops40h 15m
Thu 3/43:45 pm -
2 stops45h 58m
Deal found 9/7![Korean Air logo]()
$912
This China Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/1712:10 am -
2 stops24h 00m
Wed 10/711:30 am -
1 stop20h 30m
Deal found 9/7![China Airlines logo]()
$1,120
This Delta deal was found by Cheapflights users on 9/5. 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 10/236:20 am -
2 stops25h 15m
Thu 10/2911:05 pm -
2 stops38h 50m
Deal found 9/5![Delta logo]()
$952
This China Airlines deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1812:10 am -
2 stops25h 00m
Sun 10/46:00 am -
2 stops26h 00m
Deal found 9/7![China Airlines logo]()
$1,335
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated September 7, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated September 7, 2026 and is based on user searches.
This AirNGo deal was found by Cheapflights users on 9/5. 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 AirNGo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 9/206:00 am -
2 stops26h 10m
Thu 9/247:30 am -
2 stops29h 10m
Deal found 9/5![Korean Air logo]()
$793
This Delta deal was found by Cheapflights users on 9/4. 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.
Tue 9/296:00 am -
2 stops27h 15m
Wed 10/147:30 am -
2 stops23h 42m
Deal found 9/4![Delta logo]()
$804
This Booking.com deal was found by Cheapflights users on 9/7. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/312:10 am -
1 stop19h 30m
Sat 10/1010:50 am -
1 stop21h 10m
Deal found 9/7![China Airlines logo]()
$811
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/412:10 am -
1 stop26h 10m
Mon 10/2611:00 am -
1 stop21h 05m
Deal found 9/3![China Airlines logo]()
$801
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Fri 10/912:10 am -
1 stop19h 30m
Sat 10/2410:50 am -
1 stop21h 10m
Deal found 9/7![China Airlines logo]()
$803
This CheapOair deal was found by Cheapflights users on 9/4. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 10/1112:10 am -
1 stop26h 10m
Sat 11/75:15 pm -
1 stop38h 50m
Deal found 9/4![China Airlines logo]()
$800
This CheapOair deal was found by Cheapflights users on 9/5. 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 CheapOair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:10 am -
1 stop26h 10m
Mon 11/235:15 pm -
1 stop38h 50m
Deal found 9/5![China Airlines logo]()
$805
This Gotogate deal was found by Cheapflights users on 9/3. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/1212:10 am -
1 stop19h 30m
Wed 1/2711:00 am -
1 stop21h 05m
Deal found 9/3![China Airlines logo]()
$810
This Justfly.com deal was found by Cheapflights users on 9/4. 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 Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 am -
1 stop26h 10m
Sun 10/2511:00 am -
1 stop21h 05m
Deal found 9/4![China Airlines logo]()
$807
This FlightHub deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 10/1712:10 am -
1 stop19h 30m
Sun 11/155:15 pm -
1 stop38h 50m
Deal found 9/7![China Airlines logo]()
$808
This Korean Air deal was found by Cheapflights users on 9/6. 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.
Sat 10/176:20 am -
2 stops26h 55m
Sat 10/247:30 am -
2 stops23h 42m
Deal found 9/6![Korean Air logo]()
$812
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Wed 10/2112:10 am -
1 stop20h 20m
Sun 11/811:35 am -
1 stop20h 30m
Deal found 9/7![China Airlines logo]()
$808
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 7, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated September 7, 2026.
This Kissandfly.com deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kissandfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 1/259:45 pm -
1 stop28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![STARLUX Airlines logo]()
$413
This lol.travel deal was found by Cheapflights users on 9/6. 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 lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 11/187:00 am -
2 stops37h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/6![Korean Air logo]()
$414
This FlightHub deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 1/209:45 pm -
1 stop28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![STARLUX Airlines logo]()
$419
This oojo deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 1/59:45 pm -
1 stop28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![STARLUX Airlines logo]()
$420
This oojo deal was found by Cheapflights users on 9/7. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 1/89:45 pm -
1 stop21h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![STARLUX Airlines logo]()
$422
This lastminute.com deal was found by Cheapflights users on 9/3. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 2/97:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Korean Air logo]()
$422
This Trip.com deal was found by Cheapflights users on 9/7. 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.
Wed 1/69:45 pm -
1 stop28h 00m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/7![STARLUX Airlines logo]()
$426
This Delta deal was found by Cheapflights users on 9/3. 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.
Mon 2/87:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Delta logo]()
$430
This Mytrip deal was found by Cheapflights users on 9/5. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 3/310:50 pm -
1 stop26h 25m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![China Airlines logo]()
$431
This Booking.com deal was found by Cheapflights users on 9/4. 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 Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 2/1810:50 pm -
1 stop20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/4![China Airlines logo]()
$433
This Korean Air deal was found by Cheapflights users on 9/3. 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 Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 2/107:00 am -
2 stops23h 45m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/3![Korean Air logo]()
$433
This FlightHub deal was found by Cheapflights users on 9/5. 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.
Wed 2/1710:50 pm -
1 stop20h 10m
Wed 12/3112:00 am -
Nonstop0h 00m
Deal found 9/5![China Airlines logo]()
$434
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 7, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $772 (Trip.com) |
One-way from | $414 (lol.travel) |
Popular in | December |
Cheapest in | March |
Average price | $762 |
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 7, 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
Thu 11/5
6:20 am-9:45 pm
2 stops24h 25m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Mon 9/28
6:00 am-9:35 pm
2 stops25h 35m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Tue 11/3
6:20 am-11:10 am
2 stops37h 50m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$435
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Tue 11/17
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
Tue 9/29
6:00 am-9:35 pm
2 stops25h 35m
Hanoi Noibai
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$437
OntarioHanoi
ONT Ontario - HAN Hanoi Noibai
ONTHAN
Ontario
Tue 11/3
6:20 am-11:10 am
2 stops37h 50m
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
Thu 9/24
6:00 am-10:10 pm
2 stops26h 10m
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
Wed 9/23
6:00 am-11:15 pm
2 stops27h 15m
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
Tue 10/6
6:20 am-11:15 pm
2 stops26h 55m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$459
OntarioHo Chi Minh City
ONT Ontario - SGN Ho Chi Minh City
ONTSGN
Ontario
Wed 2/17
7:00 am-12:50 pm
2 stops38h 50m
Ho Chi Minh City
Wed 12/31
12:00 am-8:00 am
Nonstop0h 00m
$460
Showing 1-10 of 59 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-THD
ONT-DAD
ONT-HAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Vietnam
ONT-VN0
ONT-SGN
ONT-THD
ONT-DAD
ONT-HAN
What is the cheapest month to book a flight from Ontario to Vietnam?
Currently, March is the cheapest month in which you can book a flight from Ontario to Vietnam (average of $738). Flying from Ontario to Vietnam in December is currently the most expensive (average of $1,605). 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 7, 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.
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
Reviews
1 / 15
8.0
ExcellentAnonymous,Jul 2026
TPE - CRK
Entertainment
8.7
Food
8.5
Boarding
8.8
Comfort
8.8
Crew
9.1
Overall
8.7
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
Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.
Alternative routes
Complete your trip
Flights by cabin class
Other flight options
Popular flights
Top destinations
Top regions
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 7, 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 7, 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$690 | Average$844 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$742 | Average$970 | FlexibilityNo cancel fee | On-timeN/A |