$387+ Cheap flights from Ontario (ONT) to Hanoi (HAN)
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 9/28. Fares are subject to change and may not be available on all flights or dates of travel.
ONT — HAN
May 24 — May 311
Round-trip
1 adult, Economy
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Find cheap flights from Ontario to Hanoi 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
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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 Hanoi
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Cheapest flights from Ontario to HanoiExplore the most affordable flight options available from Ontario to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
Explore the most affordable flight options available from Ontario to Hanoi. Find the lowest fares from popular airlines and budget airlines, with prices last updated on April 24, 2026.
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/76:00 am
ONT
- HAN
2 stops25h 35m
Delta
Sun 9/2011:10 pm
HAN
- ONT
2 stops38h 34m
Delta
Deal found 4/19![Delta logo]()
$761
This Korean Air deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am
ONT
- HAN
2 stops23h 45m
Korean Air
Mon 11/3011:05 pm
HAN
- ONT
2 stops33h 12m
Korean Air
Deal found 4/20![Korean Air logo]()
$766
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/45:05 pm
ONT
- HAN
2 stops51h 45m
Delta
Sun 5/3111:10 pm
HAN
- ONT
2 stops37h 22m
Delta
Deal found 4/22![Delta logo]()
$767
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/116:00 am
ONT
- HAN
2 stops38h 35m
Delta
Sun 9/2011:10 pm
HAN
- ONT
2 stops38h 34m
Delta
Deal found 4/19![Delta logo]()
$811
This Korean Air deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 11/177:00 am
ONT
- HAN
2 stops23h 45m
Korean Air
Thu 12/312:20 pm
HAN
- ONT
2 stops43h 57m
Korean Air
Deal found 4/20![Korean Air logo]()
$816
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/55:05 pm
ONT
- HAN
2 stops38h 30m
Delta
Tue 9/2211:10 pm
HAN
- ONT
2 stops38h 34m
Delta
Deal found 4/19![Delta logo]()
$817
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/116:00 am
ONT
- HAN
2 stops38h 35m
Delta
Thu 9/2411:10 pm
HAN
- ONT
2 stops38h 34m
Delta
Deal found 4/19![Delta logo]()
$861
This Delta deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 9/55:05 pm
ONT
- HAN
2 stops38h 30m
Delta
Thu 9/2411:10 pm
HAN
- ONT
2 stops38h 34m
Delta
Deal found 4/19![Delta logo]()
$867
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Sun 5/3111:10 pm
HAN
- ONT
2 stops31h 58m
Korean Air
Deal found 4/22![Korean Air logo]()
$901
This Korean Air deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 8/256:00 am
ONT
- HAN
2 stops25h 35m
Multiple Airlines
Tue 9/812:05 pm
HAN
- ONT
2 stops43h 11m
Multiple Airlines
Deal found 4/19![Multiple Airlines logo]()
$915
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Sat 5/3011:10 pm
HAN
- ONT
2 stops32h 00m
Korean Air
Deal found 4/22![Korean Air logo]()
$925
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/45:05 pm
ONT
- HAN
2 stops51h 45m
Delta
Thu 6/411:10 pm
HAN
- ONT
2 stops37h 22m
Delta
Deal found 4/22![Delta logo]()
$926
Best flights from Ontario to HanoiDiscover carefully curated flight deals from Ontario to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
Discover carefully curated flight deals from Ontario to Hanoi that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated April 24, 2026.
This Korean Air deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 9/67:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Thu 9/1011:10 pm
HAN
- ONT
2 stops37h 30m
Korean Air
Deal found 4/20![Korean Air logo]()
$1,016
This Qatar Airways deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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.
Wed 5/610:39 am
ONT
- HAN
2 stops37h 16m
Qatar Airways
Tue 5/261:55 am
HAN
- ONT
2 stops36h 03m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$1,105
This China Airlines deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/412:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Fri 5/2911:30 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 4/20![China Airlines logo]()
$1,165
This Qatar Airways deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Qatar Airways is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 9/3012:10 pm
ONT
- HAN
2 stops29h 05m
Qatar Airways
Thu 10/297:10 pm
HAN
- ONT
2 stops37h 03m
Qatar Airways
Deal found 4/24![Qatar Airways logo]()
$1,131
This China Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Thu 5/285:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 4/23![China Airlines logo]()
$1,167
This Qatar Airways deal was found by Cheapflights users on 4/19. Clicking the “Pick Dates” 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 10/612:00 pm
ONT
- HAN
2 stops29h 15m
Qatar Airways
Tue 11/37:10 pm
HAN
- ONT
2 stops38h 03m
Qatar Airways
Deal found 4/19![Qatar Airways logo]()
$1,131
This China Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Wed 5/2711:30 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 4/23![China Airlines logo]()
$1,167
This China Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/612:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Thu 5/285:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 4/23![China Airlines logo]()
$1,167
This Qatar Airways deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 10/1312:00 pm
ONT
- HAN
2 stops29h 15m
Qatar Airways
Sat 10/247:30 pm
HAN
- ONT
2 stops36h 43m
Qatar Airways
Deal found 4/20![Qatar Airways logo]()
$1,171
This China Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/512:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Sat 5/235:50 pm
HAN
- ONT
1 stop38h 10m
China Airlines
Deal found 4/21![China Airlines logo]()
$1,167
This China Airlines deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure China Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/712:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Fri 5/2911:30 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 4/23![China Airlines logo]()
$1,167
This China Airlines deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 5/512:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Mon 5/2511:30 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 4/21![China Airlines logo]()
$1,172
Last-minute flights from Ontario to HanoiDiscover last-minute flight deals from Ontario to Hanoi. Data last updated April 24, 2026 and is based on user searches.
Discover last-minute flight deals from Ontario to Hanoi. Data last updated April 24, 2026 and is based on user searches.
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Wed 6/311:10 pm
HAN
- ONT
2 stops31h 58m
Korean Air
Deal found 4/22![Korean Air logo]()
$766
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Sun 5/3111:10 pm
HAN
- ONT
2 stops31h 58m
Korean Air
Deal found 4/22![Korean Air logo]()
$901
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 4/287:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Thu 6/412:05 pm
HAN
- ONT
2 stops43h 03m
Korean Air
Deal found 4/22![Korean Air logo]()
$925
This ScholarTrip deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Fri 5/111:10 pm
ONT
- HAN
1 stop21h 00m
STARLUX Airlines
Mon 6/111:10 am
HAN
- ONT
1 stop19h 55m
STARLUX Airlines
Deal found 4/22![STARLUX Airlines logo]()
$1,060
This oojo deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/210:39 am
ONT
- HAN
2 stops37h 16m
Qatar Airways
Sun 5/102:00 am
HAN
- ONT
2 stops35h 59m
Qatar Airways
Deal found 4/22![Qatar Airways logo]()
$1,088
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/41:29 pm
ONT
- HAN
2 stops55h 21m
Delta
Mon 6/111:10 pm
HAN
- ONT
2 stops37h 22m
Delta
Deal found 4/22![Delta logo]()
$767
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/45:05 pm
ONT
- HAN
2 stops51h 45m
Delta
Fri 5/2911:10 pm
HAN
- ONT
2 stops37h 24m
Delta
Deal found 4/22![Delta logo]()
$926
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 5/41:29 pm
ONT
- HAN
2 stops55h 21m
Delta
Sat 5/3011:10 pm
HAN
- ONT
2 stops47h 43m
Delta
Deal found 4/22![Delta logo]()
$932
This Justfly.com deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/411:10 pm
ONT
- HAN
1 stop27h 40m
STARLUX Airlines
Thu 5/75:50 pm
HAN
- ONT
1 stop37h 15m
STARLUX Airlines
Deal found 4/21![STARLUX Airlines logo]()
$1,031
This FlightHub deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure FlightHub is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/512:10 am
ONT
- HAN
1 stop20h 20m
China Airlines
Wed 5/2711:30 am
HAN
- ONT
1 stop20h 30m
China Airlines
Deal found 4/21![China Airlines logo]()
$1,079
This ScholarTrip deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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.
Fri 5/811:10 pm
ONT
- HAN
1 stop21h 00m
STARLUX Airlines
Fri 5/1511:10 am
HAN
- ONT
1 stop19h 55m
STARLUX Airlines
Deal found 4/21![STARLUX Airlines logo]()
$1,087
This oojo deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 5/1111:10 pm
ONT
- HAN
1 stop27h 40m
STARLUX Airlines
Mon 5/1811:10 am
HAN
- ONT
1 stop19h 55m
STARLUX Airlines
Deal found 4/20![STARLUX Airlines logo]()
$1,029
One-way flights from Ontario to HanoiSearch for one-way flight options from Ontario to Hanoi. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
Search for one-way flight options from Ontario to Hanoi. Find affordable one-way fares based on user searches. Data last updated April 24, 2026.
This Delta deal was found by Cheapflights users on 4/21. Clicking the “Pick Dates” 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 9/287:00 am
ONT
- HAN
2 stops24h 35m
Delta
Deal found 4/21![Delta logo]()
$387
This Delta deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 9/1911:55 am
ONT
- HAN
2 stops43h 40m
Delta
Deal found 4/20![Delta logo]()
$399
This Korean Air deal was found by Cheapflights users on 4/20. Clicking the “Pick Dates” 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 9/297:00 am
ONT
- HAN
2 stops24h 35m
Multiple Airlines
Deal found 4/20![Multiple Airlines logo]()
$464
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 8/107:00 am
ONT
- HAN
2 stops24h 35m
Delta
Deal found 4/22![Delta logo]()
$472
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 8/96:00 am
ONT
- HAN
2 stops25h 35m
Delta
Deal found 4/22![Delta logo]()
$512
This Korean Air deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Korean Air is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/127:00 am
ONT
- HAN
2 stops24h 35m
Korean Air
Deal found 4/22![Korean Air logo]()
$515
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 7/176:20 am
ONT
- HAN
2 stops25h 15m
Delta
Deal found 4/22![Delta logo]()
$535
This Delta deal was found by Cheapflights users on 4/24. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 9/247:00 am
ONT
- HAN
2 stops24h 35m
Delta
Deal found 4/24![Delta logo]()
$545
This SmartFares deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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.
Fri 8/2111:45 pm
ONT
- HAN
1 stop20h 25m
STARLUX Airlines
Deal found 4/22![STARLUX Airlines logo]()
$548
This Delta deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” 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 7/191:42 pm
ONT
- HAN
2 stops41h 53m
Delta
Deal found 4/22![Delta logo]()
$549
This ANA deal was found by Cheapflights users on 4/22. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure ANA is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/219:01 am
ONT
- HAN
2 stops23h 14m
Multiple Airlines
Deal found 4/22![Multiple Airlines logo]()
$554
This Delta deal was found by Cheapflights users on 4/23. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Delta is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/45:05 pm
ONT
- HAN
2 stops51h 45m
Delta
Deal found 4/23![Delta logo]()
$558
Find flight deals from Ontario to Hanoi
Discover tips and strategies to find the most affordable flight options for your journey from Ontario (ONT) to Hanoi (HAN). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated April 24, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $761 (Delta) |
One-way from | $387 (Delta) |
Popular in | December |
Cheapest in | April |
Average price | $749 |
Cheapflights Fare Finder
Customize your flight search to find flights from Ontario to Hanoi 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 April 24, 2026.
Use the filters below to find and compare flights from Ontario to Hanoi that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Sun 9/6
7:00 am-9:35 pm
2 stops24h 35m
Hanoi Noibai
Thu 9/10
11:10 pm-10:40 pm
2 stops37h 30m
$1,016
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Wed 5/6
10:39 am-1:55 pm
2 stops37h 16m
Hanoi Noibai
Tue 5/26
1:55 am-11:58 pm
2 stops36h 03m
$1,105
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Wed 9/30
12:10 pm-7:15 am
2 stops29h 05m
Hanoi Noibai
Thu 10/29
7:10 pm-6:13 pm
2 stops37h 03m
$1,131
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Tue 10/6
12:00 pm-7:15 am
2 stops29h 15m
Hanoi Noibai
Tue 11/3
7:10 pm-6:13 pm
2 stops38h 03m
$1,131
Quickest round-trip
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Mon 5/4
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Fri 5/29
11:30 am-6:00 pm
1 stop20h 30m
$1,165
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Thu 5/7
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Thu 5/28
5:50 pm-6:00 pm
1 stop38h 10m
$1,167
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Thu 5/7
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Wed 5/27
11:30 am-6:00 pm
1 stop20h 30m
$1,167
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Wed 5/6
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Thu 5/28
5:50 pm-6:00 pm
1 stop38h 10m
$1,167
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Tue 5/5
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Sat 5/23
5:50 pm-6:00 pm
1 stop38h 10m
$1,167
OntarioHanoi
ONT - HAN
ONTHAN
Ontario
Thu 5/7
12:10 am-10:30 am
1 stop20h 20m
Hanoi Noibai
Fri 5/29
11:30 am-6:00 pm
1 stop20h 30m
$1,167
Showing 1-10 of 24 resultsSorted by cheapest first
Compare providers for flights from Ontario to Hanoi
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Ontario to Hanoi in April.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*2 stars |
- Most accurate provider: When it comes to deals on Ontario-Hanoi flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Ontario-Hanoi flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Ontario-Hanoi flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Ontario-Hanoi flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Ontario-Hanoi flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Ontario to Hanoi
Have a flexible travel schedule? Discover the best time to fly to Hanoi from Ontario with our price prediction graph.
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 Hanoi
Reviews of airlines servicing Hanoi
Get insights into the airlines that provide service to Hanoi. 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 Hanoi. Reviews last updated April 24, 2026.
Read through reviews of airlines operating flights from Ontario to Hanoi, such as China Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
Food
7.8
Comfort
8.0
Boarding
8.3
Entertainment
8.0
Overall
8.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentA,Feb 2026
SEA - TPE
Food
7.8
Comfort
8.0
Boarding
8.3
Entertainment
8.0
Overall
8.3
Crew
8.5
Reviews
1 / 20
10.0
ExcellentA,Feb 2026
SEA - TPE
Related info for your journey
Find useful and relevant information for your journey from Ontario to Hanoi. 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 Hanoi
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Complete your trip
Complete your trip to Hanoi by adding a car rental and/or hotel reservation to your travel itinerary.
Search flights from Ontario to Hanoi by cabin class
Find flights from Ontario to Hanoi, based on your preferred cabin class, be it economy, premium economy, business, or first class.
Other flights to Hanoi
Explore flights to Hanoi departing from other origins. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
Ontario and Hanoi flights
Browse other Ontario and Hanoi flight options. Last updated on April 24, 2026.
Other flights from Ontario
Browse through other flights departing from Ontario. Flights are based on user searches made on Cheapflights and were last updated on April 24, 2026.
Popular flight searches
Check out other popular destinations found by fellow travelers in 2026
Top airline flying from Ontario to Hanoi
Discover the top airline that operate flights from Ontario to Hanoi. 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 April 24, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$740 | Average$827 | FlexibilityNo cancel fee | On-time70% |