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Cheap flights from Hanoi to Seattle from $401

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 3/16. 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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0 bags

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Find the cheapest flights from Hanoi to Seattle

Cheap round-trip flights

Enter your travel dates to find the best prices.
Delta Logo
11:05 pm - 1:20 pm
HAN
-
SEA
29h 15m1 stop
Delta Logo
11:25 am - 11:10 am
SEA
-
HAN
32h 45m1 stop
$747Delta
Wed, Feb 11 - Sun, Feb 22
Philippine Airlines Logo
2:50 am - 6:40 pm
HAN
-
SEA
30h 50m1 stop
Philippine Airlines Logo
9:30 pm - 1:45 am
SEA
-
HAN
37h 15m1 stop
$757Philippine Airlines
Mon, Feb 9 - Tue, Feb 17
Asiana Airlines Logo
1:30 pm - 1:55 pm
HAN
-
SEA
15h 25m1 stop
Asiana Airlines Logo
12:10 am - 12:10 pm
SEA
-
HAN
21h 00m1 stop
$817Asiana Airlines
Wed, Feb 11 - Sun, Feb 22
Philippine Airlines Logo
2:50 am - 6:40 pm
HAN
-
SEA
30h 50m1 stop
Philippine Airlines Logo
9:30 pm - 1:45 am
SEA
-
HAN
37h 15m1 stop
$821Philippine Airlines
Tue, Feb 10 - Fri, Feb 20
Philippine Airlines Logo
2:50 am - 6:40 pm
HAN
-
SEA
30h 50m1 stop
Philippine Airlines Logo
9:30 pm - 1:45 am
SEA
-
HAN
37h 15m1 stop
$827Philippine Airlines
Tue, Feb 10 - Fri, Feb 27
Multiple Airlines Logo
9:35 am - 3:05 pm
HAN
-
SEA
44h 30m2 stops
Multiple Airlines Logo
9:30 pm - 1:45 am
SEA
-
HAN
37h 15m1 stop
$836Multiple Airlines
Wed, Feb 11 - Sun, Feb 22
Delta Logo
11:05 pm - 1:20 pm
HAN
-
SEA
29h 15m1 stop
Delta Logo
5:10 pm - 9:45 pm
SEA
-
HAN
37h 35m2 stops
$843Delta
Wed, Feb 11 - Mon, Feb 23
ANA Logo
8:35 am - 1:20 pm
HAN
-
SEA
19h 45m1 stop
ANA Logo
7:15 am - 11:05 pm
SEA
-
HAN
24h 50m2 stops
$853ANA
Tue, Feb 10 - Tue, Feb 17
Cathay Pacific Logo
7:30 pm - 11:21 am
HAN
-
SEA
30h 51m2 stops
Cathay Pacific Logo
7:55 pm - 10:05 am
SEA
-
HAN
47h 10m2 stops
$863Cathay Pacific
Tue, Feb 10 - Tue, Feb 17
Multiple Airlines Logo
9:35 am - 3:05 pm
HAN
-
SEA
44h 30m2 stops
Multiple Airlines Logo
9:30 pm - 12:40 pm
SEA
-
HAN
24h 10m1 stop
$881Multiple Airlines
Wed, Feb 11 - Sun, Mar 1

Delta flights from Hanoi to Seattle

Our best Delta deals on Hanoi to Seattle flight tickets
Delta
Feb 11
HAN11:05 pmHanoi Noibai
29h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Feb 22
SEA11:25 amSeattle/Tacoma Intl
32h 45m
1 stop
HAN11:10 amHanoi Noibai
$747
Find similar
Delta
Feb 11
HAN11:05 pmHanoi Noibai
29h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Feb 23
SEA5:10 pmSeattle/Tacoma Intl
37h 35m
2 stops
HAN9:45 pmHanoi Noibai
$843
Find similar
Delta
Feb 11
HAN11:05 pmHanoi Noibai
29h 15m
1 stop
SEA1:20 pmSeattle/Tacoma Intl
Feb 28
SEA5:30 amSeattle/Tacoma Intl
25h 15m
2 stops
HAN9:45 pmHanoi Noibai
$891
Find similar

STARLUX Airlines flights from Hanoi to Seattle

Our best STARLUX Airlines deals on Hanoi to Seattle flight tickets
STARLUX Airlines
Jan 8
HAN6:25 pmHanoi Noibai
35h 40m
1 stop
SEA3:05 pmSeattle/Tacoma Intl
Jun 22
SEA1:15 amSeattle/Tacoma Intl
25h 35m
1 stop
HAN4:50 pmHanoi Noibai
$1,229
Find similar
STARLUX Airlines
Jan 8
HAN6:25 pmHanoi Noibai
35h 40m
1 stop
SEA3:05 pmSeattle/Tacoma Intl
Jun 22
SEA1:15 amSeattle/Tacoma Intl
25h 35m
1 stop
HAN4:50 pmHanoi Noibai
$1,245
Find similar
STARLUX Airlines
Jan 7
HAN6:25 pmHanoi Noibai
35h 40m
1 stop
SEA3:05 pmSeattle/Tacoma Intl
Jun 22
SEA1:15 amSeattle/Tacoma Intl
25h 35m
1 stop
HAN4:50 pmHanoi Noibai
$1,344
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 December 27, 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

Wed 2/11

11:05 pm-1:20 pm

1 stop29h 15m

Seattle/Tacoma Intl

Sun 2/22

11:25 am-11:10 am

1 stop32h 45m

$747

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Mon 2/9

2:50 am-6:40 pm

1 stop30h 50m

Seattle/Tacoma Intl

Tue 2/17

9:30 pm-1:45 am

1 stop37h 15m

$757

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 2/11

1:30 pm-1:55 pm

1 stop15h 25m

Seattle/Tacoma Intl

Sun 2/22

12:10 am-12:10 pm

1 stop21h 00m

$817

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 2/10

2:50 am-6:40 pm

1 stop30h 50m

Seattle/Tacoma Intl

Fri 2/20

9:30 pm-1:45 am

1 stop37h 15m

$821

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 2/10

2:50 am-6:40 pm

1 stop30h 50m

Seattle/Tacoma Intl

Fri 2/27

9:30 pm-1:45 am

1 stop37h 15m

$827

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 2/11

9:35 am-3:05 pm

2 stops44h 30m

Seattle/Tacoma Intl

Sun 2/22

9:30 pm-1:45 am

1 stop37h 15m

$836

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 2/11

11:05 pm-1:20 pm

1 stop29h 15m

Seattle/Tacoma Intl

Mon 2/23

5:10 pm-9:45 pm

2 stops37h 35m

$843

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 2/10

8:35 am-1:20 pm

1 stop19h 45m

Seattle/Tacoma Intl

Tue 2/17

7:15 am-11:05 pm

2 stops24h 50m

$853

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Tue 2/10

7:30 pm-11:21 am

2 stops30h 51m

Seattle/Tacoma Intl

Tue 2/17

7:55 pm-10:05 am

2 stops47h 10m

$863

HanoiSeattle

HAN - SEA

HANSEA

Hanoi Noibai

Wed 2/11

9:35 am-3:05 pm

2 stops44h 30m

Seattle/Tacoma Intl

Sun 3/1

9:30 pm-12:40 pm

1 stop24h 10m

$881

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 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 December 2025, prices for Hanoi to Seattle flights are approximately 10% 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

Fastest flight time

21h 42m

Direct flights

None
The fastest flight from Hanoi to Seattle takes 21h 42m
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 21h 42m 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
China AirlinesPriceFrom $794Free CancellationRating
8.3
793 reviews
Search China Airlines flights
EVA AirPriceFrom $887Free CancellationRating
8.5
1,303 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
Redmond
Tukwila
Federal Way
Cle Elum
Lakewood
Fife
Centralia
Westport
Kirkland
Shoreline

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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