$469+ Cheap flights from Ontario (ONT) to Vietnam
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 8/6. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Aug 8 — Aug 151
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 July 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 July 9, 2026.
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 9/1211:30 pm
ONT
- DAD
1 stop28h 05m
STARLUX Airlines
Sun 9/276:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$896
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/3010:45 pm
ONT
- DAD
1 stop28h 30m
STARLUX Airlines
Fri 11/66:25 pm
DAD
- ONT
1 stop36h 30m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$901
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/711:30 pm
ONT
- HAN
1 stop20h 40m
STARLUX Airlines
Mon 12/711:40 am
HAN
- ONT
1 stop19h 15m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$901
This Vliegwinkel deal was found by Cheapflights users on 7/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:55 pm
ONT
- HAN
1 stop26h 55m
STARLUX Airlines
Mon 8/2411:10 am
HAN
- ONT
1 stop20h 30m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$906
This oojo deal was found by Cheapflights users on 7/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 11/29:45 pm
ONT
- HAN
1 stop21h 45m
STARLUX Airlines
Wed 11/1111:40 am
HAN
- ONT
1 stop19h 15m
STARLUX Airlines
Deal found 7/6![STARLUX Airlines logo]()
$909
This FlightHub deal was found by Cheapflights users on 7/7. 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 10/2111:30 pm
ONT
- HAN
1 stop20h 40m
STARLUX Airlines
Wed 11/1111:40 am
HAN
- ONT
1 stop19h 15m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$910
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Tue 9/86:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$920
This oojo deal was found by Cheapflights users on 7/7. 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.
Wed 8/1911:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Thu 8/276:45 pm
DAD
- ONT
1 stop36h 55m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$921
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Tue 9/86:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/5![STARLUX Airlines logo]()
$923
This FlightHub deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Sun 9/66:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/4![STARLUX Airlines logo]()
$926
This oojo deal was found by Cheapflights users on 7/7. 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.
Wed 8/511:55 pm
ONT
- HAN
1 stop20h 15m
STARLUX Airlines
Thu 8/275:50 pm
HAN
- ONT
1 stop37h 50m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$926
This FlightHub deal was found by Cheapflights users on 7/5. 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 9/911:30 pm
ONT
- HAN
1 stop20h 40m
STARLUX Airlines
Fri 9/1811:10 am
HAN
- ONT
1 stop19h 55m
STARLUX Airlines
Deal found 7/5![STARLUX Airlines logo]()
$931
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 July 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 July 9, 2026.
This oojo deal was found by Cheapflights users on 7/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/211:30 pm
ONT
- DAD
1 stop28h 40m
STARLUX Airlines
Fri 10/237:20 pm
DAD
- ONT
1 stop35h 45m
STARLUX Airlines
Deal found 7/3![STARLUX Airlines logo]()
$923
This Delta deal was found by Cheapflights users on 7/6. 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.
Sun 8/96:20 am
ONT
- SGN
2 stops26h 55m
Delta
Sun 10/1111:45 pm
SGN
- ONT
2 stops31h 27m
Delta
Deal found 7/6![Delta logo]()
$1,010
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/169:01 am
ONT
- SGN
2 stops23h 04m
United Airlines
Wed 10/77:00 am
SGN
- ONT
2 stops22h 22m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,011
This Korean Air deal was found by Cheapflights users on 7/7. 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.
Sat 8/296:20 am
ONT
- HAN
2 stops25h 15m
Korean Air
Wed 9/911:10 pm
HAN
- ONT
2 stops32h 10m
Korean Air
Deal found 7/7![Korean Air logo]()
$1,012
This China Airlines deal was found by Cheapflights users on 7/5. 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.
Tue 9/812:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Tue 9/1511:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/5![China Airlines logo]()
$1,020
This Korean Air deal was found by Cheapflights users on 7/8. 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.
Wed 8/266:00 am
ONT
- DAD
2 stops25h 05m
Multiple Airlines
Wed 9/910:55 pm
DAD
- ONT
2 stops32h 25m
Multiple Airlines
Deal found 7/8![Multiple Airlines logo]()
$1,087
This Qatar Airways deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/511:13 am
ONT
- HAN
2 stops30h 02m
Qatar Airways
Mon 10/267:10 pm
HAN
- ONT
2 stops36h 53m
Qatar Airways
Deal found 7/5![Qatar Airways logo]()
$1,111
This Korean Air deal was found by Cheapflights users on 7/4. 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.
Mon 8/106:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Sun 8/2311:45 pm
SGN
- ONT
2 stops31h 36m
Korean Air
Deal found 7/4![Korean Air logo]()
$1,016
This Delta deal was found by Cheapflights users on 7/6. 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.
Wed 8/266:20 am
ONT
- DAD
2 stops24h 45m
Delta
Wed 9/910:55 pm
DAD
- ONT
2 stops37h 09m
Delta
Deal found 7/6![Delta logo]()
$1,033
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/86:08 am
ONT
- SGN
2 stops25h 47m
United Airlines
Sat 9/267:00 am
SGN
- ONT
2 stops24h 46m
United Airlines
Deal found 7/4![United Airlines logo]()
$1,040
This China Airlines deal was found by Cheapflights users on 7/4. 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 8/812:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Mon 8/245:50 pm
HAN
- ONT
1 stop38h 50m
China Airlines
Deal found 7/4![China Airlines logo]()
$1,050
This United Airlines deal was found by Cheapflights users on 7/8. 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.
Mon 10/56:00 am
ONT
- HAN
2 stops26h 15m
United Airlines
Sun 10/1811:35 pm
HAN
- ONT
2 stops29h 47m
United Airlines
Deal found 7/8![United Airlines logo]()
$1,050
This China Airlines deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/2312:10 am
ONT
- SGN
1 stop19h 30m
China Airlines
Sun 11/811:00 am
SGN
- ONT
1 stop20h 50m
China Airlines
Deal found 7/5![China Airlines logo]()
$1,054
This Delta deal was found by Cheapflights users on 7/8. 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.
Sat 8/226:00 am
ONT
- DAD
2 stops25h 05m
Delta
Tue 9/83:55 pm
DAD
- ONT
2 stops44h 09m
Delta
Deal found 7/8![Delta logo]()
$1,072
This Qatar Airways deal was found by Cheapflights users on 7/7. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:12 pm
ONT
- HAN
2 stops29h 03m
Qatar Airways
Tue 9/157:30 pm
HAN
- ONT
2 stops37h 33m
Qatar Airways
Deal found 7/7![Qatar Airways logo]()
$1,224
This Korean Air deal was found by Cheapflights users on 7/4. 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.
Thu 8/276:20 am
ONT
- DAD
2 stops24h 45m
Korean Air
Sun 9/610:55 pm
DAD
- ONT
2 stops32h 26m
Korean Air
Deal found 7/4![Korean Air logo]()
$1,146
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Fri 10/29:25 am
ONT
- SGN
2 stops22h 40m
United Airlines
Sun 10/256:00 am
SGN
- ONT
2 stops20h 01m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,068
This Delta deal was found by Cheapflights users on 7/4. 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 9/16:00 am
ONT
- DAD
2 stops25h 05m
Delta
Thu 9/103:55 pm
DAD
- ONT
2 stops44h 09m
Delta
Deal found 7/4![Delta logo]()
$1,072
This United Airlines deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 7/116:00 am
ONT
- SGN
2 stops26h 05m
United Airlines
Wed 7/157:00 am
SGN
- ONT
2 stops24h 54m
United Airlines
Deal found 7/4![United Airlines logo]()
$1,068
This Delta deal was found by Cheapflights users on 7/8. 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.
Sat 8/226:00 am
ONT
- DAD
2 stops25h 05m
Delta
Mon 9/710:55 pm
DAD
- ONT
2 stops37h 09m
Delta
Deal found 7/8![Delta logo]()
$1,072
This Qatar Airways deal was found by Cheapflights users on 7/4. 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 Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/112:00 pm
ONT
- DAD
3 stops33h 00m
Multiple Airlines
Thu 9/103:15 pm
DAD
- ONT
3 stops41h 48m
Multiple Airlines
Deal found 7/4![Multiple Airlines logo]()
$1,467
This Korean Air deal was found by Cheapflights users on 7/5. 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 7/276:20 am
ONT
- HAN
2 stops25h 15m
Korean Air
Mon 8/311:10 pm
HAN
- ONT
2 stops37h 35m
Korean Air
Deal found 7/5![Korean Air logo]()
$1,231
This China Airlines deal was found by Cheapflights users on 7/6. 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 7/1312:45 am
ONT
- HAN
1 stop19h 45m
China Airlines
Mon 7/2711:30 am
HAN
- ONT
1 stop21h 10m
China Airlines
Deal found 7/6![China Airlines logo]()
$1,269
This Delta deal was found by Cheapflights users on 7/4. 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.
Thu 8/276:00 am
ONT
- DAD
2 stops25h 05m
Delta
Sat 9/510:55 pm
DAD
- ONT
2 stops50h 21m
Delta
Deal found 7/4![Delta logo]()
$1,080
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Mon 10/56:00 am
ONT
- SGN
2 stops26h 05m
United Airlines
Wed 10/147:00 am
SGN
- ONT
2 stops22h 22m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,096
This Delta deal was found by Cheapflights users on 7/8. 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.
Wed 8/196:20 am
ONT
- DAD
2 stops24h 45m
Delta
Wed 8/2610:55 pm
DAD
- ONT
2 stops32h 26m
Delta
Deal found 7/8![Delta logo]()
$1,083
This United Airlines deal was found by Cheapflights users on 7/3. 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.
Sat 7/116:00 am
ONT
- SGN
2 stops26h 05m
United Airlines
Sat 7/187:00 am
SGN
- ONT
2 stops22h 29m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,096
This China Airlines deal was found by Cheapflights users on 7/8. 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 China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 9/1112:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Sun 9/275:45 am
DAD
- ONT
2 stops26h 15m
China Airlines
Deal found 7/8![China Airlines logo]()
$1,359
This United Airlines deal was found by Cheapflights users on 7/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/308:03 am
ONT
- HAN
2 stops24h 12m
United Airlines
Wed 10/2812:25 am
HAN
- ONT
2 stops31h 30m
United Airlines
Deal found 7/3![United Airlines logo]()
$1,100
This United Airlines deal was found by Cheapflights users on 7/7. 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.
Sat 7/185:00 am
ONT
- SGN
2 stops29h 15m
United Airlines
Mon 7/277:00 am
SGN
- ONT
2 stops29h 37m
United Airlines
Deal found 7/7![United Airlines logo]()
$1,108
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated July 9, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated July 9, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/311:55 pm
ONT
- HAN
1 stop26h 55m
STARLUX Airlines
Fri 8/1411:10 am
HAN
- ONT
1 stop20h 30m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$954
This oojo deal was found by Cheapflights users on 7/7. 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.
Wed 8/511:55 pm
ONT
- HAN
1 stop20h 15m
STARLUX Airlines
Thu 8/275:50 pm
HAN
- ONT
1 stop37h 50m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$926
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/511:55 pm
ONT
- HAN
1 stop20h 15m
STARLUX Airlines
Thu 8/135:50 pm
HAN
- ONT
1 stop37h 50m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$949
This Vliegwinkel deal was found by Cheapflights users on 7/7. 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 Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 8/1011:55 pm
ONT
- HAN
1 stop26h 55m
STARLUX Airlines
Mon 8/2411:10 am
HAN
- ONT
1 stop20h 30m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$906
This oojo deal was found by Cheapflights users on 7/7. 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.
Wed 8/1911:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Thu 8/276:45 pm
DAD
- ONT
1 stop36h 55m
STARLUX Airlines
Deal found 7/7![STARLUX Airlines logo]()
$921
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2112:45 am
ONT
- DAD
1 stop25h 45m
China Airlines
Mon 9/75:30 pm
DAD
- ONT
1 stop39h 10m
China Airlines
Deal found 7/8![China Airlines logo]()
$969
This oojo deal was found by Cheapflights users on 7/8. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2211:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Tue 9/86:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$920
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Wed 9/910:00 am
DAD
- ONT
1 stop22h 40m
China Airlines
Deal found 7/5![China Airlines logo]()
$968
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/2512:45 am
ONT
- DAD
1 stop18h 15m
China Airlines
Wed 9/1610:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 7/5![China Airlines logo]()
$970
This oojo deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Tue 9/86:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/5![STARLUX Airlines logo]()
$923
This FlightHub deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/2611:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Sun 9/66:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/4![STARLUX Airlines logo]()
$926
This BusinessClass deal was found by Cheapflights users on 7/4. 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 BusinessClass is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2811:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Sun 9/66:45 pm
DAD
- ONT
1 stop36h 20m
STARLUX Airlines
Deal found 7/4![STARLUX Airlines logo]()
$964
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 July 9, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated July 9, 2026.
This SmartFares deal was found by Cheapflights users on 7/7. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/612:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Deal found 7/7![China Airlines logo]()
$469
This SmartFares deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/156:20 am
ONT
- HAN
2 stops25h 15m
Korean Air
Deal found 7/4![Korean Air logo]()
$471
This oojo deal was found by Cheapflights users on 7/7. 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.
Wed 8/263:07 pm
ONT
- SGN
2 stops33h 18m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$476
This oojo deal was found by Cheapflights users on 7/3. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/163:14 pm
ONT
- SGN
2 stops33h 11m
Multiple Airlines
Deal found 7/3![Multiple Airlines logo]()
$477
This oojo deal was found by Cheapflights users on 7/6. 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 oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 8/233:07 pm
ONT
- SGN
2 stops27h 23m
Philippine Airlines
Deal found 7/6![Philippine Airlines logo]()
$478
This lastminute.com deal was found by Cheapflights users on 7/7. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/96:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Deal found 7/7![Korean Air logo]()
$480
This SmartFares deal was found by Cheapflights users on 7/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 9/1412:45 am
ONT
- HAN
1 stop26h 05m
China Airlines
Deal found 7/4![China Airlines logo]()
$485
This SmartFares deal was found by Cheapflights users on 7/8. 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 SmartFares is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/1211:55 pm
ONT
- DAD
1 stop27h 40m
STARLUX Airlines
Deal found 7/8![STARLUX Airlines logo]()
$486
This Gotogate deal was found by Cheapflights users on 7/8. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 8/412:45 am
ONT
- SGN
1 stop25h 35m
China Airlines
Deal found 7/8![China Airlines logo]()
$487
This oojo deal was found by Cheapflights users on 7/7. 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.
Sat 8/159:20 pm
ONT
- SGN
2 stops45h 10m
Multiple Airlines
Deal found 7/7![Multiple Airlines logo]()
$488
This Trip.com deal was found by Cheapflights users on 7/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 8/2912:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Deal found 7/5![China Airlines logo]()
$489
This lastminute.com deal was found by Cheapflights users on 7/7. 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 lastminute.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 9/812:45 am
ONT
- SGN
1 stop18h 55m
China Airlines
Deal found 7/7![China Airlines logo]()
$491
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 July 9, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $896 (oojo) |
One-way from | $469 (SmartFares) |
Popular in | December |
Cheapest in | September |
Average price | $1,068 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Vietnam that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated July 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
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Fri 10/2
11:30 pm-6:10 pm
1 stop28h 40m
Da Nang
Fri 10/23
7:20 pm-5:05 pm
1 stop35h 45m
$923
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Sun 8/9
6:20 am-11:15 pm
2 stops26h 55m
Ho Chi Minh City
Sun 10/11
11:45 pm-5:12 pm
2 stops31h 27m
$1,010
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Wed 9/16
9:01 am-10:05 pm
2 stops23h 04m
Ho Chi Minh City
Wed 10/7
7:00 am-3:22 pm
2 stops22h 22m
$1,011
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Sat 8/29
6:20 am-9:35 pm
2 stops25h 15m
Hanoi Noibai
Wed 9/9
11:10 pm-5:20 pm
2 stops32h 10m
$1,012
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Mon 8/10
6:20 am-10:10 pm
2 stops25h 50m
Ho Chi Minh City
Sun 8/23
11:45 pm-5:21 pm
2 stops31h 36m
$1,016
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Tue 9/8
12:45 am-10:30 am
1 stop19h 45m
Hanoi Noibai
Tue 9/15
11:30 am-6:40 pm
1 stop21h 10m
$1,020
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Wed 8/26
6:20 am-9:05 pm
2 stops24h 45m
Da Nang
Wed 9/9
10:55 pm-10:04 pm
2 stops37h 09m
$1,033
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Tue 9/8
6:08 am-9:55 pm
2 stops25h 47m
Ho Chi Minh City
Sat 9/26
7:00 am-5:46 pm
2 stops24h 46m
$1,040
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Sat 8/8
12:45 am-4:50 pm
1 stop26h 05m
Hanoi Noibai
Mon 8/24
5:50 pm-6:40 pm
1 stop38h 50m
$1,050
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Mon 10/5
6:00 am-10:15 pm
2 stops26h 15m
Hanoi Noibai
Sun 10/18
11:35 pm-3:22 pm
2 stops29h 47m
$1,050
Showing 1-10 of 60 resultsSorted by cheapest first
Best time to book a flight from Ontario to Vietnam
Have a flexible travel schedule? Discover the best time to fly to Vietnam from Ontario with our price prediction graph.
ONT-SGN
ONT-DAD
ONT-THD
ONT-HAN
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Ontario to Vietnam
ONT-VN0
ONT-SGN
ONT-DAD
ONT-THD
ONT-HAN
What is the cheapest month to book a flight from Ontario to Vietnam?
Currently, April is the cheapest month in which you can book a flight from Ontario to Vietnam (average of $360). Flying from Ontario to Vietnam in December is currently the most expensive (average of $928). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How far ahead should I book a flight from Ontario to Vietnam?
The best time to book flights from Ontario to Vietnam is 65 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
Reviews of airlines servicing Vietnam
Get insights into the airlines that provide service to Vietnam. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Vietnam. Reviews last updated July 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
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
Overall
8.8
Food
8.6
Boarding
8.9
Comfort
8.9
Crew
9.2
Entertainment
8.8
Reviews
1 / 14
8.0
ExcellentAndrew,Jun 2026
SEA - TPE
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 July 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 2,558,603 searches. Data last updated July 9, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$611 | Average$841 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$656 | Average$755 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$691 | Average$818 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$735 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$742 | Average$848 | FlexibilityNo cancel fee | On-timeN/A |