$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 8/3. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — SGN
Jul 5 — Jul 121
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Vietnam with Cheapflights
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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 Juni 5, 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 Juni 5, 2026.
This lol.travel deal was found by Cheapflights users on 6/5. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure lol.travel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 8/136:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Mi 8/2611:45 pm
SGN
- ONT
2 stops37h 00m
Korean Air
Deal found 6/5![Korean Air logo]()
$884
This SmartFares deal was found by Cheapflights users on 6/4. 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.
Mi 8/266:20 am
ONT
- SGN
2 stops26h 55m
Korean Air
Mi 9/97:30 am
SGN
- ONT
2 stops23h 46m
Korean Air
Deal found 6/4![Korean Air logo]()
$936
This Gotogate deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 8/3112:45 am
ONT
- SGN
1 stop18h 55m
Multiple Airlines
Do 10/111:20 am
SGN
- ONT
1 stop20h 40m
Multiple Airlines
Deal found 6/1![Multiple Airlines logo]()
$939
This Booking.com deal was found by Cheapflights users on 6/4. 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.
Di 9/2212:10 am
ONT
- SGN
1 stop19h 30m
Multiple Airlines
Di 10/1311:20 am
SGN
- ONT
1 stop20h 40m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$942
This Booking.com deal was found by Cheapflights users on 6/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Booking.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fr 9/412:45 am
ONT
- SGN
1 stop18h 55m
Multiple Airlines
Sa 10/311:20 am
SGN
- ONT
1 stop20h 40m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$943
This Gotogate deal was found by Cheapflights users on 6/2. 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 Gotogate is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 9/3012:10 am
ONT
- SGN
1 stop26h 10m
Multiple Airlines
Di 12/1511:20 am
SGN
- ONT
1 stop20h 30m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$944
This Delta deal was found by Cheapflights users on 6/2. 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.
Di 9/16:00 am
ONT
- SGN
2 stops26h 10m
Delta
Mo 9/1411:45 pm
SGN
- ONT
2 stops36h 55m
Delta
Deal found 6/2![Delta logo]()
$945
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 11/46:00 am
ONT
- SGN
2 stops25h 25m
Delta
Mi 11/258:00 am
SGN
- ONT
2 stops23h 12m
Delta
Deal found 6/1![Delta logo]()
$946
This Delta deal was found by Cheapflights users on 6/5. 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.
So 8/309:43 am
ONT
- SGN
2 stops47h 32m
Delta
Mi 9/237:30 am
SGN
- ONT
2 stops29h 10m
Delta
Deal found 6/5![Delta logo]()
$951
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
So 11/85:05 pm
ONT
- SGN
2 stops39h 15m
Delta
Mi 11/258:00 am
SGN
- ONT
2 stops24h 17m
Delta
Deal found 6/1![Delta logo]()
$952
This Gotogate deal was found by Cheapflights users on 6/3. 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.
Do 11/1910:50 pm
ONT
- SGN
1 stop27h 00m
China Airlines
Sa 11/2811:00 am
SGN
- ONT
1 stop20h 50m
China Airlines
Deal found 6/3![China Airlines logo]()
$953
This Vliegwinkel deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Vliegwinkel is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Do 10/812:10 am
ONT
- SGN
1 stop19h 30m
China Airlines
Fr 10/2310:50 am
SGN
- ONT
1 stop21h 10m
China Airlines
Deal found 6/1![China Airlines logo]()
$954
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 Juni 5, 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 Juni 5, 2026.
This Delta deal was found by Cheapflights users on 6/4. 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.
So 8/911:45 am
ONT
- SGN
2 stops44h 25m
Delta
So 10/1111:45 pm
SGN
- ONT
2 stops31h 32m
Delta
Deal found 6/4![Delta logo]()
$951
This Korean Air deal was found by Cheapflights users on 6/4. 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.
Mo 8/176:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Sa 8/297:30 am
SGN
- ONT
2 stops29h 15m
Korean Air
Deal found 6/4![Korean Air logo]()
$1,001
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Mi 9/3012:10 am
ONT
- DAD
1 stop26h 20m
China Airlines
Mi 11/1110:20 am
DAD
- ONT
1 stop21h 30m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,023
This United Airlines deal was found by Cheapflights users on 6/2. 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.
So 10/185:00 am
ONT
- HAN
2 stops27h 15m
United Airlines
Do 10/2912:25 am
HAN
- ONT
2 stops31h 22m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,051
This Qatar Airways deal was found by Cheapflights users on 6/5. 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.
Di 9/112:00 pm
ONT
- HAN
2 stops29h 15m
Qatar Airways
Di 9/227:30 pm
HAN
- ONT
2 stops37h 33m
Qatar Airways
Deal found 6/5![Qatar Airways logo]()
$1,111
This China Airlines deal was found by Cheapflights users on 6/4. 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.
So 11/2210:50 pm
ONT
- HAN
2 stops24h 20m
Multiple Airlines
Sa 12/511:35 am
HAN
- ONT
1 stop20h 15m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$1,185
This Delta deal was found by Cheapflights users on 6/4. 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.
Sa 8/296:00 am
ONT
- SGN
2 stops40h 35m
Delta
So 9/1311:45 pm
SGN
- ONT
2 stops37h 52m
Delta
Deal found 6/4![Delta logo]()
$978
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Fr 10/212:10 am
ONT
- DAD
1 stop26h 20m
China Airlines
Sa 11/710:20 am
DAD
- ONT
1 stop21h 30m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,023
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Mo 11/96:00 am
ONT
- SGN
2 stops25h 55m
United Airlines
Mo 11/237:30 am
SGN
- ONT
2 stops22h 57m
United Airlines
Deal found 6/3![United Airlines logo]()
$1,062
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Di 12/17:00 am
ONT
- SGN
2 stops25h 20m
Delta
Di 12/158:00 am
SGN
- ONT
2 stops30h 48m
Delta
Deal found 5/31![Delta logo]()
$990
This Korean Air deal was found by Cheapflights users on 6/4. 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.
Di 8/46:20 am
ONT
- DAD
2 stops24h 45m
Korean Air
So 8/3010:55 pm
DAD
- ONT
2 stops32h 26m
Korean Air
Deal found 6/4![Korean Air logo]()
$1,095
This China Airlines deal was found by Cheapflights users on 6/3. 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.
Mi 9/3012:10 am
ONT
- DAD
1 stop26h 20m
China Airlines
Sa 10/2410:00 am
DAD
- ONT
1 stop22h 00m
China Airlines
Deal found 6/3![China Airlines logo]()
$1,023
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Do 8/139:01 am
ONT
- SGN
2 stops25h 14m
United Airlines
Mo 8/317:00 am
SGN
- ONT
2 stops25h 11m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,073
This Korean Air deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Sa 10/36:20 am
ONT
- DAD
2 stops24h 45m
Korean Air
So 11/83:45 pm
DAD
- ONT
2 stops40h 32m
Korean Air
Deal found 5/31![Korean Air logo]()
$1,101
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Mo 9/216:20 am
ONT
- HAN
2 stops25h 15m
Delta
Do 10/2211:10 pm
HAN
- ONT
2 stops32h 07m
Delta
Deal found 5/31![Delta logo]()
$1,007
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Do 9/2412:10 am
ONT
- HAN
1 stop26h 40m
China Airlines
Di 10/205:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 6/3. 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.
Do 9/36:00 am
ONT
- SGN
2 stops25h 55m
United Airlines
So 9/207:00 am
SGN
- ONT
2 stops25h 11m
United Airlines
Deal found 6/3![United Airlines logo]()
$1,089
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
So 9/206:20 am
ONT
- HAN
2 stops25h 15m
Delta
Di 10/2011:10 pm
HAN
- ONT
2 stops32h 07m
Delta
Deal found 5/31![Delta logo]()
$1,007
This Korean Air deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Di 7/76:20 am
ONT
- SGN
2 stops40h 15m
Korean Air
Do 7/167:30 am
SGN
- ONT
2 stops23h 51m
Korean Air
Deal found 5/31![Korean Air logo]()
$1,111
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Mi 9/2312:10 am
ONT
- HAN
1 stop26h 40m
China Airlines
Sa 10/175:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 6/2. 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.
Do 10/295:00 am
ONT
- SGN
2 stops29h 15m
United Airlines
Sa 11/216:00 am
SGN
- ONT
2 stops21h 20m
United Airlines
Deal found 6/2![United Airlines logo]()
$1,092
This Korean Air deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
So 8/26:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Sa 8/221:55 pm
SGN
- ONT
2 stops41h 26m
Korean Air
Deal found 5/31![Korean Air logo]()
$1,113
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Sa 9/1912:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
So 10/185:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Do 10/19:39 am
ONT
- SGN
2 stops22h 26m
United Airlines
Sa 10/316:00 am
SGN
- ONT
3 stops25h 47m
United Airlines
Deal found 5/31![United Airlines logo]()
$1,093
This Korean Air deal was found by Cheapflights users on 6/4. 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.
Mo 9/146:20 am
ONT
- DAD
2 stops42h 00m
Korean Air
Do 9/173:55 pm
DAD
- ONT
2 stops39h 25m
Korean Air
Deal found 6/4![Korean Air logo]()
$1,116
This China Airlines deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 10/1712:10 am
ONT
- HAN
1 stop26h 40m
China Airlines
Do 10/225:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 6/1![China Airlines logo]()
$1,028
This United Airlines deal was found by Cheapflights users on 6/4. 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.
Sa 8/2911:00 am
ONT
- SGN
2 stops21h 05m
United Airlines
So 9/137:00 am
SGN
- ONT
3 stops27h 01m
United Airlines
Deal found 6/4![United Airlines logo]()
$1,111
This Korean Air deal was found by Cheapflights users on 6/2. 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.
So 11/17:00 am
ONT
- DAD
2 stops23h 30m
Korean Air
Do 11/511:20 pm
DAD
- ONT
2 stops32h 57m
Korean Air
Deal found 6/2![Korean Air logo]()
$1,151
This China Airlines deal was found by Cheapflights users on 6/3. 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.
Di 10/1312:10 am
ONT
- DAD
1 stop18h 50m
China Airlines
Sa 11/710:20 am
DAD
- ONT
1 stop21h 30m
China Airlines
Deal found 6/3![China Airlines logo]()
$1,049
This China Airlines deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Di 10/612:10 am
ONT
- DAD
1 stop18h 50m
China Airlines
Mi 11/1110:20 am
DAD
- ONT
1 stop21h 30m
China Airlines
Deal found 5/31![China Airlines logo]()
$1,049
Last-minute flights from Ontario to VietnamDiscover last-minute flight deals from Ontario to Vietnam. Data last updated Juni 5, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Vietnam. Data last updated Juni 5, 2026 and is based on user searches.
This Mytrip deal was found by Cheapflights users on 6/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mi 7/112:45 am
ONT
- SGN
2 stops30h 20m
Multiple Airlines
Di 7/217:30 am
SGN
- ONT
2 stops25h 10m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,033
This Mytrip deal was found by Cheapflights users on 6/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 7/612:45 am
ONT
- SGN
2 stops25h 30m
Multiple Airlines
Di 7/2110:15 pm
SGN
- ONT
2 stops34h 25m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,012
This Mytrip deal was found by Cheapflights users on 6/3. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 7/712:45 am
ONT
- SGN
2 stops23h 45m
Multiple Airlines
Di 7/2111:00 pm
SGN
- ONT
2 stops33h 40m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$1,043
This Mytrip deal was found by Cheapflights users on 6/2. 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 Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 7/1812:45 am
ONT
- SGN
2 stops30h 45m
Multiple Airlines
Mi 8/56:55 am
SGN
- ONT
2 stops25h 45m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$1,038
This Korean Air deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Mo 7/206:20 am
ONT
- HAN
2 stops25h 15m
Korean Air
Di 8/1811:10 pm
HAN
- ONT
2 stops37h 35m
Korean Air
Deal found 5/31![Korean Air logo]()
$1,007
This ScholarTrip deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ScholarTrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 7/206:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Mo 7/2711:45 pm
SGN
- ONT
2 stops31h 36m
Korean Air
Deal found 6/1![Korean Air logo]()
$1,009
This Korean Air deal was found by Cheapflights users on 6/2. 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.
Mi 7/226:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
So 8/301:55 pm
SGN
- ONT
2 stops41h 26m
Korean Air
Deal found 6/2![Korean Air logo]()
$1,031
This Delta deal was found by Cheapflights users on 5/31. Clicking the “Pick Dates” 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.
Mo 7/276:20 am
ONT
- HAN
2 stops25h 15m
Delta
Mi 8/2611:10 pm
HAN
- ONT
2 stops38h 24m
Delta
Deal found 5/31![Delta logo]()
$1,002
This Korean Air deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 7/276:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Mo 8/1011:45 pm
SGN
- ONT
2 stops31h 36m
Korean Air
Deal found 6/1![Korean Air logo]()
$1,036
This Delta deal was found by Cheapflights users on 6/3. 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.
Di 7/286:00 am
ONT
- SGN
2 stops40h 35m
Delta
Mo 9/711:45 pm
SGN
- ONT
2 stops36h 59m
Delta
Deal found 6/3![Delta logo]()
$1,025
This Delta deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 7/286:00 am
ONT
- SGN
2 stops26h 10m
Delta
Do 8/277:30 am
SGN
- ONT
2 stops30h 04m
Delta
Deal found 6/1![Delta logo]()
$1,026
This Delta deal was found by Cheapflights users on 6/3. 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.
Fr 7/316:20 am
ONT
- SGN
2 stops40h 15m
Delta
So 9/2011:45 pm
SGN
- ONT
2 stops37h 52m
Delta
Deal found 6/3![Delta logo]()
$995
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 Juni 5, 2026.
Search for one-way flight options from Ontario to Vietnam. Find affordable one-way fares based on user searches. Data last updated Juni 5, 2026.
This Trip.com deal was found by Cheapflights users on 6/3. 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 Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 8/38:58 am
ONT
- SGN
2 stops39h 27m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$469
This oojo deal was found by Cheapflights users on 6/3. 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.
Mo 11/164:09 pm
ONT
- SGN
2 stops25h 21m
Multiple Airlines
Deal found 6/3![Multiple Airlines logo]()
$473
This Trip.com deal was found by Cheapflights users on 6/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sa 11/77:00 am
ONT
- SGN
2 stops24h 25m
Korean Air
Deal found 6/1![Korean Air logo]()
$487
This Trip.com deal was found by Cheapflights users on 6/5. 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.
So 11/87:00 am
ONT
- HAN
2 stops23h 45m
Korean Air
Deal found 6/5![Korean Air logo]()
$494
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mo 10/511:38 am
ONT
- SGN
2 stops36h 47m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$501
This Delta deal was found by Cheapflights users on 6/3. 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.
Mo 9/286:00 am
ONT
- SGN
2 stops27h 15m
Delta
Deal found 6/3![Delta logo]()
$503
This Kiwi.com deal was found by Cheapflights users on 6/4. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 9/88:33 pm
ONT
- DAD
3 stops52h 47m
Multiple Airlines
Deal found 6/4![Multiple Airlines logo]()
$504
This Korean Air deal was found by Cheapflights users on 6/2. 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.
Sa 8/156:20 am
ONT
- SGN
2 stops25h 50m
Korean Air
Deal found 6/2![Korean Air logo]()
$506
This Korean Air deal was found by Cheapflights users on 6/5. 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.
Fr 11/67:00 am
ONT
- HAN
2 stops23h 45m
Korean Air
Deal found 6/5![Korean Air logo]()
$506
This Delta deal was found by Cheapflights users on 6/5. 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.
Do 8/276:20 am
ONT
- HAN
2 stops25h 15m
Delta
Deal found 6/5![Delta logo]()
$507
This Kiwi.com deal was found by Cheapflights users on 6/2. 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 Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Di 10/69:49 pm
ONT
- SGN
3 stops50h 36m
Multiple Airlines
Deal found 6/2![Multiple Airlines logo]()
$510
This Delta deal was found by Cheapflights users on 6/2. 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.
Sa 10/105:05 pm
ONT
- SGN
2 stops40h 10m
Delta
Deal found 6/2![Delta logo]()
$514
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 Juni 5, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $884 (lol.travel) |
One-way from | $469 (Trip.com) |
Popular in | June |
Cheapest in | September |
Average price | $1,157 |
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 Juni 5, 2026.
Use the filters below to find and compare flights from Ontario to Vietnam that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
So 8/9
11:45 am-10:10 pm
2 stops44h 25m
Ho Chi Minh City
So 10/11
11:45 pm-5:17 pm
2 stops31h 32m
$951
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Sa 8/29
6:00 am-12:35 pm
2 stops40h 35m
Ho Chi Minh City
So 9/13
11:45 pm-11:37 pm
2 stops37h 52m
$978
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Di 12/1
7:00 am-11:20 pm
2 stops25h 20m
Ho Chi Minh City
Di 12/15
8:00 am-11:48 pm
2 stops30h 48m
$990
OntarioHo Chi Minh City
ONT - SGN
ONTSGN
Ontario
Mo 8/17
6:20 am-10:10 pm
2 stops25h 50m
Ho Chi Minh City
Sa 8/29
7:30 am-10:45 pm
2 stops29h 15m
$1,001
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Mo 9/21
6:20 am-9:35 pm
2 stops25h 15m
Hanoi Noibai
Do 10/22
11:10 pm-5:17 pm
2 stops32h 07m
$1,007
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
So 9/20
6:20 am-9:35 pm
2 stops25h 15m
Hanoi Noibai
Di 10/20
11:10 pm-5:17 pm
2 stops32h 07m
$1,007
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Mi 9/30
12:10 am-4:30 pm
1 stop26h 20m
Da Nang
Mi 11/11
10:20 am-4:50 pm
1 stop21h 30m
$1,023
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Fr 10/2
12:10 am-4:30 pm
1 stop26h 20m
Da Nang
Sa 11/7
10:20 am-4:50 pm
1 stop21h 30m
$1,023
OntarioDa Nang
ONT - DAD
ONTDAD
Ontario
Mi 9/30
12:10 am-4:30 pm
1 stop26h 20m
Da Nang
Sa 10/24
10:00 am-6:00 pm
1 stop22h 00m
$1,023
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Do 9/24
12:10 am-4:50 pm
1 stop26h 40m
Hanoi Noibai
Di 10/20
5:50 pm-6:00 pm
1 stop38h 10m
$1,028
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-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-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 Juni 5, 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.
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - TPE
Crew
9.1
Overall
8.9
Boarding
8.9
Comfort
8.9
Entertainment
8.8
Food
8.6
Reviews
1 / 13
10.0
ExcellentAnonymous,Jun 2026
LAX - 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.
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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 Juni 5, 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 Juni 5, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$640 | Average$917 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$649 | Average$756 | FlexibilityNo cancel fee | On-time81% | |
| Cheapest$654 | Average$735 | FlexibilityNo cancel fee | On-timeN/A | |
| Cheapest$691 | Average$812 | FlexibilityNo cancel fee | On-time70% | |
| Cheapest$741 | Average$821 | FlexibilityNo cancel fee | On-timeN/A |