Which layover airport offers the lowest fares from Hanoi to Seattle?

Flights via Incheon (ICN) offer the lowest average round-trip price of $785.

Which layover airport has the shortest travel time from Hanoi to Seattle?

Flights connecting via Incheon (ICN) have the shortest average one-way travel time: 15h 25m.

Which airport is the most popular layover for flights between Hanoi and Seattle?

Taipei City (TPE) was the most common stop: 75% of momondo users choosing 1-stop flights on this route connected there.

Which layover airport has the shortest connection time from Hanoi to Seattle?

Taipei City (TPE) has the shortest average layover time for this route: 2h 33m.

What is the cheapest airline that flies from Hanoi Noibai to Seattle/Tacoma Intl?

Asiana Airlines and Delta are the most popular carriers operating from Hanoi Noibai to Seattle/Tacoma Intl

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 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.

$399 Cheap Flights from Hanoi to Seattle in 2026

Find the cheapest flights from Hanoi to Seattle

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

11:10 pm - 3:15 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

30h 05m1 stop Incheon Intl

12:10 am - 9:35 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 25m1 stop Incheon Intl

$836Multiple Airlines

Sat, Sep 5 - Mon, Sep 7

12:05 pm - 10:40 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 35m1 stop Incheon Intl

12:50 pm - 9:35 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

18h 45m1 stop Incheon Intl

$852Korean Air

Thu, Sep 24 - Thu, Oct 1

1:25 pm - 3:15 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

15h 50m1 stop Incheon Intl

12:10 am - 10:00 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 50m1 stop Incheon Intl

$855Asiana Airlines

Fri, Oct 16 - Sun, Oct 18

12:05 pm - 3:15 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

17h 10m1 stop Incheon Intl

12:10 am - 10:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

20h 25m1 stop Incheon Intl

$856Multiple Airlines

Fri, Sep 4 - Thu, Sep 10

11:30 pm - 3:15 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

29h 45m1 stop Incheon Intl

12:10 am - 12:15 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

22h 05m1 stop Incheon Intl

$862Asiana Airlines

Sat, Sep 26 - Fri, Oct 2

11:10 pm - 1:37 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

28h 27m1 stop Incheon Intl

1:00 pm - 9:35 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

18h 35m1 stop Incheon Intl

$867Delta

Thu, Sep 24 - Thu, Oct 1

11:10 pm - 10:40 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

25h 30m1 stop Incheon Intl

12:50 pm - 10:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 45m1 stop Incheon Intl

$920Korean Air

Fri, Oct 16 - Mon, Oct 19

12:05 pm - 10:40 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 35m1 stop Incheon Intl

12:50 pm - 10:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 45m1 stop Incheon Intl

$920Korean Air

Wed, Oct 14 - Sun, Oct 18

11:10 pm - 1:37 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

28h 27m1 stop Incheon Intl

5:40 pm - 9:35 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

37h 55m2 stops Los Angeles Los Angeles Incheon Intl

$957Delta

Sat, Sep 5 - Tue, Sep 8

11:10 pm - 10:40 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

25h 30m1 stop Incheon Intl

7:15 am - 9:35 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

24h 20m2 stops San Francisco Incheon Intl

$957Delta

Sat, Sep 26 - Sat, Oct 3

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Asiana Airlines flights from Hanoi to Seattle

Our best Asiana Airlines deals on Hanoi to Seattle flight tickets

Asiana Airlines

Oct 16

HAN1:25 pmHanoi Noibai

15h 50m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Oct 18

SEA12:10 amSeattle/Tacoma Intl

31h 50m

1 stop

HAN10:00 pmHanoi Noibai

$855

Asiana Airlines

Sep 26

HAN11:30 pmHanoi Noibai

29h 45m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Oct 2

SEA12:10 amSeattle/Tacoma Intl

22h 05m

1 stop

HAN12:15 pmHanoi Noibai

$862

Emirates flights from Hanoi to Seattle

Our best Emirates deals on Hanoi to Seattle flight tickets

Emirates

Sep 24

HAN1:30 amHanoi Noibai

35h 30m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

Oct 2

SEA5:15 pmSeattle/Tacoma Intl

30h 00m

1 stop

HAN1:15 pmHanoi Noibai

$1,776

Emirates

Sep 24

HAN1:30 amHanoi Noibai

35h 30m

2 stops

SEA11:00 pmSeattle/Tacoma Intl

Oct 2

SEA10:42 amSeattle/Tacoma Intl

36h 33m

2 stops

HAN1:15 pmHanoi Noibai

$1,908

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 9/5

11:10 pm-3:15 pm

1 stop30h 05m

Seattle/Tacoma Intl

Mon 9/7

12:10 am-9:35 pm

1 stop31h 25m

$836

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Thu 9/24

12:05 pm-10:40 am

1 stop36h 35m

Seattle/Tacoma Intl

Thu 10/1

12:50 pm-9:35 pm

1 stop18h 45m

$852

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Fri 10/16

1:25 pm-3:15 pm

1 stop15h 50m

Seattle/Tacoma Intl

Sun 10/18

12:10 am-10:00 pm

1 stop31h 50m

$855

Quickest round-trip

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Fri 9/4

12:05 pm-3:15 pm

1 stop17h 10m

Seattle/Tacoma Intl

Thu 9/10

12:10 am-10:35 am

1 stop20h 25m

$856

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 9/26

11:30 pm-3:15 pm

1 stop29h 45m

Seattle/Tacoma Intl

Fri 10/2

12:10 am-12:15 pm

1 stop22h 05m

$862

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Thu 9/24

11:10 pm-1:37 pm

1 stop28h 27m

Seattle/Tacoma Intl

Thu 10/1

1:00 pm-9:35 pm

1 stop18h 35m

$867

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Fri 10/16

11:10 pm-10:40 am

1 stop25h 30m

Seattle/Tacoma Intl

Mon 10/19

12:50 pm-10:35 am

1 stop31h 45m

$920

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Wed 10/14

12:05 pm-10:40 am

1 stop36h 35m

Seattle/Tacoma Intl

Sun 10/18

12:50 pm-10:35 am

1 stop31h 45m

$920

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 9/5

11:10 pm-1:37 pm

1 stop28h 27m

Seattle/Tacoma Intl

Tue 9/8

5:40 pm-9:35 pm

2 stops37h 55m

$957

HanoiSeattle

HAN Hanoi Noibai - SEA Seattle/Tacoma Intl

HANSEA

Hanoi Noibai

Sat 9/26

11:10 pm-10:40 am

1 stop25h 30m

Seattle/Tacoma Intl

Sat 10/3

7:15 am-9:35 pm

2 stops24h 20m

$957

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first

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

Prices

Airlines

Layovers

What is the cheapest month to fly to Seattle?

In general, March 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 $0. If you don’t want to visit Seattle in March, then you should wait until April to fly from Hanoi, when ticket prices are also cheap, with an average price of $694.

How have Hanoi to Seattle flight prices changed over time?

As of August 2026, prices for Hanoi to Seattle flights are approximately 4% 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	25h 30m
Direct flights	None

The fastest flight from Hanoi to Seattle takes 25h 30m

There are no direct flights from Hanoi to Seattle. There are no popular flight routes from Hanoi to Seattle.

Search flight deals

Frequently asked questions about flying from Hanoi to Seattle

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 25h 30m 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 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.

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Kent

Lynnwood

Redmond

Lakewood

Federal Way

Puyallup

Tukwila

Fife

Cle Elum

Marysville

Kirkland

Centralia

Shoreline

Lacey

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.