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Cheap flights from Hanoi to Seattle from $408

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Hanoi to Seattle departing on 11/24. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
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Cheap round-trip flights

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Multiple Airlines Logo
9:35 am - 6:40 pmHAN-SEA
24h 05m2 stops
Multiple Airlines Logo
9:30 pm - 9:10 pmSEA-HAN
32h 40m2 stops
$701Multiple Airlines
Find Deal
Sun, Nov 30 - Sun, Dec 7
Philippine Airlines Logo
2:50 am - 6:40 pmHAN-SEA
30h 50m1 stop
Philippine Airlines Logo
9:30 pm - 1:45 amSEA-HAN
37h 15m1 stop
$752Philippine Airlines
Find Deal
Sat, Nov 29 - Sun, Dec 7
Korean Air Logo
11:05 pm - 9:00 amHAN-SEA
24h 55m1 stop
Korean Air Logo
12:00 pm - 9:45 pmSEA-HAN
19h 45m1 stop
$819Korean Air
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Thu, Mar 5 - Mon, Mar 9
Asiana Airlines Logo
1:30 pm - 1:55 pmHAN-SEA
15h 25m1 stop
Asiana Airlines Logo
12:10 am - 10:00 pmSEA-HAN
31h 50m1 stop
$830Asiana Airlines
Find Deal
Fri, Feb 20 - Tue, Jul 21
China Airlines Logo
5:30 pm - 6:10 pmHAN-SEA
15h 40m1 stop
China Airlines Logo
1:10 am - 10:35 amSEA-HAN
19h 25m1 stop
$839China Airlines
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Thu, Mar 5 - Sun, Mar 8
STARLUX Airlines Logo
11:30 am - 3:05 pmHAN-SEA
18h 35m1 stop
STARLUX Airlines Logo
11:45 pm - 10:30 amSEA-HAN
19h 45m1 stop
$887STARLUX Airlines
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Sun, Nov 30 - Sun, Dec 7
Delta Logo
12:20 pm - 9:00 amHAN-SEA
35h 40m1 stop
Delta Logo
7:20 am - 9:45 pmSEA-HAN
24h 25m2 stops
$920Delta
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Thu, Mar 5 - Mon, Mar 9
Delta Logo
11:05 pm - 6:56 pmHAN-SEA
34h 51m2 stops
Delta Logo
7:20 am - 9:45 pmSEA-HAN
24h 25m2 stops
$930Delta
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Thu, Mar 5 - Mon, Mar 9
China Airlines Logo
5:30 pm - 8:15 amHAN-SEA
29h 45m2 stops
China Airlines Logo
1:40 am - 4:50 pmSEA-HAN
25h 10m1 stop
$1,001China Airlines
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Fri, Feb 20 - Tue, Jul 21
Asiana Airlines Logo
1:30 pm - 6:27 pmHAN-SEA
19h 57m2 stops
Asiana Airlines Logo
12:10 am - 12:10 pmSEA-HAN
22h 00m1 stop
$1,161Asiana Airlines
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Thu, Mar 5 - Sun, Mar 8

Asiana Airlines flights from Hanoi to Seattle

Our best Asiana Airlines deals on Hanoi to Seattle flight tickets
Asiana Airlines
Feb 20
HAN1:30 pmHanoi Noibai
15h 25m
1 stop
SEA1:55 pmSeattle/Tacoma Intl
Jul 21
SEA12:10 amSeattle/Tacoma Intl
31h 50m
1 stop
HAN10:00 pmHanoi Noibai
$830
Find similar
Asiana Airlines
Mar 5
HAN1:30 pmHanoi Noibai
19h 57m
2 stops
SEA6:27 pmSeattle/Tacoma Intl
Mar 8
SEA12:10 amSeattle/Tacoma Intl
22h 00m
1 stop
HAN12:10 pmHanoi Noibai
$1,161
Find similar

United Airlines flights from Hanoi to Seattle

Our best United Airlines deals on Hanoi to Seattle flight tickets
United Airlines
Feb 19
HAN12:25 amHanoi Noibai
38h 05m
2 stops
SEA11:30 pmSeattle/Tacoma Intl
Jul 22
SEA7:32 pmSeattle/Tacoma Intl
36h 43m
2 stops
HAN10:15 pmHanoi Noibai
$946
Find similar
United Airlines
Mar 4
HAN12:25 amHanoi Noibai
37h 57m
2 stops
SEA11:22 pmSeattle/Tacoma Intl
Mar 9
SEA7:15 amSeattle/Tacoma Intl
25h 50m
2 stops
HAN11:05 pmHanoi Noibai
$1,007
Find similar
United Airlines
Mar 4
HAN12:25 amHanoi Noibai
30h 49m
2 stops
SEA4:14 pmSeattle/Tacoma Intl
Mar 9
SEA7:15 amSeattle/Tacoma Intl
25h 50m
2 stops
HAN11:05 pmHanoi Noibai
$1,027
Find similar

momondo Fare Finder

 
Customize your flight search to find flights from Hanoi to Seattle 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, momondo users made 832,500 searches. Data last updated October 16, 2025.
Use the filters below to find and compare flights from Hanoi to Seattle that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Sun 11/30

9:35 am-6:40 pm

2 stops24h 05m

Seattle/Tacoma Intl

Sun 12/7

9:30 pm-9:10 pm

2 stops32h 40m

$701

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Sat 11/29

2:50 am-6:40 pm

1 stop30h 50m

Seattle/Tacoma Intl

Sun 12/7

9:30 pm-1:45 am

1 stop37h 15m

$752

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 3/5

11:05 pm-9:00 am

1 stop24h 55m

Seattle/Tacoma Intl

Mon 3/9

12:00 pm-9:45 pm

1 stop19h 45m

$819

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 2/20

1:30 pm-1:55 pm

1 stop15h 25m

Seattle/Tacoma Intl

Tue 7/21

12:10 am-10:00 pm

1 stop31h 50m

$830

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 3/5

5:30 pm-6:10 pm

1 stop15h 40m

Seattle/Tacoma Intl

Sun 3/8

1:10 am-10:35 am

1 stop19h 25m

$839

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Sun 11/30

11:30 am-3:05 pm

1 stop18h 35m

Seattle/Tacoma Intl

Sun 12/7

11:45 pm-10:30 am

1 stop19h 45m

$887

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 3/5

12:20 pm-9:00 am

1 stop35h 40m

Seattle/Tacoma Intl

Mon 3/9

7:20 am-9:45 pm

2 stops24h 25m

$920

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 3/5

11:05 pm-6:56 pm

2 stops34h 51m

Seattle/Tacoma Intl

Mon 3/9

7:20 am-9:45 pm

2 stops24h 25m

$930

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Fri 2/20

5:30 pm-8:15 am

2 stops29h 45m

Seattle/Tacoma Intl

Tue 7/21

1:40 am-4:50 pm

1 stop25h 10m

$1,001

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Thu 3/5

1:30 pm-6:27 pm

2 stops19h 57m

Seattle/Tacoma Intl

Sun 3/8

12:10 am-12:10 pm

1 stop22h 00m

$1,161

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
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See travel insights to Seattle from

How to get the cheapest flight ticket from Hanoi to Seattle

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest month to fly to Seattle?

In general, September is the cheapest month to fly from Hanoi to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $795. If you don’t want to visit Seattle in September, then you should wait until December to fly from Hanoi, when ticket prices are also cheap, with an average price of $826.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Hanoi is on a Sunday. momondo users have found tickets for Sunday departures for as low as $868. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Saturday is the most expensive day to depart from Hanoi because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,250.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Hanoi in the afternoon is the least expensive time of day to depart. momondo users have found prices as low as $980 when looking at flights departing in the afternoon. Flights to Seattle are more costly in the evening, with an average ticket price of $1,063. Departure times in the evening fall within the peak daily travel times, which is why tickets can be more expensive.

How have Hanoi to Seattle flight prices changed over time?

As of October 2025, prices for Hanoi to Seattle flights are approximately 9% cheaper when compared to flights at the same time last year.

When to book flights from Hanoi to Seattle

Are you open to changing your travel dates? Check out the ideal times to fly from Hanoi to Seattle according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Hanoi to Seattle (HAN to SEA) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Hanoi to Seattle

Direct flights

None
There are no direct flights from Hanoi to Seattle. There are no popular flight routes from Hanoi to Seattle.
Search flight deals

  • How far is Hanoi Noibai to Seattle/Tacoma Intl by plane?

    Seattle/Tacoma Intl is 6829.4 mi away from Hanoi Noibai. Typically, this will take 15h 25m by plane in normal conditions.

  • When did momondo last update prices for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

    Prices for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport were last updated today.

  • How many operators does momondo search for flights from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

  • How old do you have to be to fly from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Hanoi Noibai Airport to Seattle/Tacoma Intl Airport.

  • What documentation or ID do you need to fly to Seattle/Tacoma Intl Airport?

    The travel and health documents you'll need for your trip to Seattle/Tacoma Intl Airport may differ based on your itinerary and personal situation. Typically, you should have several documents on hand, such as a national ID card or driver's license and a passport that is valid for six months after your intended arrival at Seattle/Tacoma Intl Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

  • What is the most popular airline from Hanoi to Seattle?

Best airlines flying from Hanoi to Seattle

Compare and see reviews for airlines that fly from Hanoi to Seattle with momondo
Airline
Rating
Free Cancellation
Price
Korean AirPriceFrom $769Free CancellationRating
8.4
1,149 reviews
Search Korean Air flights
China AirlinesPriceFrom $794Free CancellationRating
8.3
768 reviews
Search China Airlines flights
EVA AirPriceFrom $885Free CancellationRating
8.4
1,251 reviews
Search EVA Air flights

Traveling to a place near Seattle?

Book flights to Seattle if you plan to visit one of these locations
Tacoma
Leavenworth
SeaTac
Ocean Shores
Renton
Olympia
Lynnwood
Kent
Marysville
Puyallup
Federal Way
Tukwila
Lakewood
Kirkland
Fife
Centralia
Shoreline
Cle Elum
Redmond
Westport

Why use momondo?

Why should I use momondo to find a flight deal from Hanoi to Seattle?

We help find the flight that best suits your needs, momondo compares prices from hundreds of airlines and travel agents and helps you filter them to find the best flight from Hanoi to Seattle for you.

Can I find flights from Hanoi to Seattle with flexible booking policies on momondo?

Yes. All flights to Seattle from Hanoi on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Hanoi to Seattle?

Once you have performed a search for Hanoi to Seattle flights, momondo helps you find the right one by offering useful filters to narrow down your flight selection. Flights can be filtered by multiple factors such as airline, airport and price; but also by other criteria like aircraft type and payment method.

I’m not ready to book a flight from Hanoi to Seattle right now. Can momondo alert me if prices change?

Yes momondo offers price alerts on flights to Seattle from Hanoi. After performing a search on this page you should be able to see the price alert set up feature. Simply provide a valid email address and momondo will instantly alert you when prices change.

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