What airlines fly to Hanoi?

Asiana Airlines, EVA Air and China Airlines are the top three most popular airlines that fly to Hanoi from Seattle according to our data. Asiana Airlines is the first choice among our users, with 50% of people opting to fly with this airline when traveling to Hanoi. Keep in mind that there are 8 different airlines that fly to Hanoi on a routine basis, so you have a few additional options to choose from.

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

Incheon (ICN) was the most common stop: 61% of momondo users choosing 1-stop flights on this route connected there.

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

Cathay Pacific, Philippine Airlines, and Asiana Airlines are the most popular carriers operating from Seattle/Tacoma Intl to Hanoi Noibai

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

Incheon (ICN) has the shortest average layover time for this route: 4h 04m.

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

Flights via Manila (MNL) offer the lowest average round-trip price of $655.

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

Flights connecting via Taipei City (TPE) have the shortest average one-way travel time: 20h 34m.

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

Prices for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport are refreshed on a daily basis.

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

There are 8 operators available for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport as of August 2026.

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

What documentation or ID do you need to fly to Hanoi Noibai Airport?

The travel and health documents required for your trip to Hanoi Noibai Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hanoi Noibai Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$408 Cheap Flights from Seattle to Hanoi in 2026

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Hanoi

Round-trip

One-way

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:45 am - 5:25 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

41h 40m1 stop Singapore Changi

6:20 pm - 7:10 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

27h 50m1 stop Singapore Changi

$793Singapore Airlines

Wed, Jan 27 - Mon, Feb 22

10:50 am - 10:05 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

32h 15m1 stop Hong Kong Intl

7:30 pm - 9:10 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

28h 40m1 stop Hong Kong Intl

$813Cathay Pacific

Mon, Nov 9 - Mon, Nov 23

12:25 pm - 9:55 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 30m1 stop Hong Kong Intl

7:10 pm - 10:05 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

28h 55m1 stop Hong Kong Intl

$814Cathay Pacific

Thu, Sep 10 - Sun, Sep 20

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

19h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:35 am - 6:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

21h 35m1 stop Taipei City Taiwan Taoyuan Intl

$820China Airlines

Sun, Nov 22 - Sat, Dec 12

1:10 am - 10:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

19h 25m1 stop Taipei City Taiwan Taoyuan Intl

5:30 pm - 6:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

15h 40m1 stop Taipei City Taiwan Taoyuan Intl

$820China Airlines

Sat, Oct 31 - Tue, Nov 17

1:15 am - 4:50 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

25h 35m1 stop Taipei City Taiwan Taoyuan Intl

5:50 pm - 4:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 20m1 stop Taipei City Taiwan Taoyuan Intl

$831STARLUX Airlines

Tue, Sep 8 - Wed, Sep 16

1:15 am - 4:50 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

25h 35m1 stop Taipei City Taiwan Taoyuan Intl

11:40 am - 3:05 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

18h 25m1 stop Taipei City Taiwan Taoyuan Intl

$831STARLUX Airlines

Tue, Oct 13 - Wed, Nov 11

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

22h 05m1 stop Incheon Intl

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

29h 45m1 stop Incheon Intl

$834Asiana Airlines

Tue, Aug 25 - Wed, Sep 2

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

22h 05m1 stop Incheon Intl

11:50 pm - 1:55 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

29h 05m1 stop Incheon Intl

$835Asiana Airlines

Tue, Oct 13 - Wed, Nov 11

8:45 am - 3:05 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

39h 20m1 stop Singapore Changi

9:40 am - 7:10 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 30m1 stop Singapore Changi

$837Singapore Airlines

Wed, Feb 10 - Fri, Feb 26

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STARLUX Airlines flights from Seattle to Hanoi

Our best STARLUX Airlines deals on Seattle to Hanoi flight tickets

STARLUX Airlines

Sep 9

SEA1:15 amSeattle/Tacoma Intl

18h 55m

1 stop

HAN10:10 amHanoi Noibai

Sep 17

HAN5:50 pmHanoi Noibai

36h 20m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

$832

STARLUX Airlines

Sep 12

SEA1:15 amSeattle/Tacoma Intl

18h 55m

1 stop

HAN10:10 amHanoi Noibai

Oct 12

HAN11:10 amHanoi Noibai

19h 00m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

$835

STARLUX Airlines

Sep 6

SEA1:15 amSeattle/Tacoma Intl

18h 55m

1 stop

HAN10:10 amHanoi Noibai

Sep 18

HAN11:10 amHanoi Noibai

19h 00m

1 stop

SEA4:10 pmSeattle/Tacoma Intl

$843

China Airlines flights from Seattle to Hanoi

Our best China Airlines deals on Seattle to Hanoi flight tickets

China Airlines

Aug 23

SEA1:55 amSeattle/Tacoma Intl

18h 35m

1 stop

HAN10:30 amHanoi Noibai

Aug 31

HAN11:30 amHanoi Noibai

22h 15m

1 stop

SEA7:45 pmSeattle/Tacoma Intl

$820

China Airlines

Sep 29

SEA1:15 amSeattle/Tacoma Intl

19h 15m

1 stop

HAN10:30 amHanoi Noibai

Oct 10

HAN11:30 amHanoi Noibai

21h 45m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

$821

China Airlines

Oct 31

SEA1:10 amSeattle/Tacoma Intl

19h 25m

1 stop

HAN10:35 amHanoi Noibai

Nov 17

HAN5:30 pmHanoi Noibai

15h 40m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

$822

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Wed 1/27

8:45 am-5:25 pm

1 stop41h 40m

Hanoi Noibai

Mon 2/22

6:20 pm-7:10 am

1 stop27h 50m

$793

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Mon 11/9

10:50 am-10:05 am

1 stop32h 15m

Hanoi Noibai

Mon 11/23

7:30 pm-9:10 am

1 stop28h 40m

$813

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Thu 9/10

12:25 pm-9:55 am

1 stop31h 30m

Hanoi Noibai

Sun 9/20

7:10 pm-10:05 am

1 stop28h 55m

$814

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Sun 11/22

12:10 am-10:35 am

1 stop19h 25m

Hanoi Noibai

Sat 12/12

11:35 am-6:10 pm

1 stop21h 35m

$820

Quickest round-trip

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Sat 10/31

1:10 am-10:35 am

1 stop19h 25m

Hanoi Noibai

Tue 11/17

5:30 pm-6:10 pm

1 stop15h 40m

$820

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 9/8

1:15 am-4:50 pm

1 stop25h 35m

Hanoi Noibai

Wed 9/16

5:50 pm-4:10 pm

1 stop36h 20m

$831

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 10/13

1:15 am-4:50 pm

1 stop25h 35m

Hanoi Noibai

Wed 11/11

11:40 am-3:05 pm

1 stop18h 25m

$831

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 8/25

12:10 am-12:15 pm

1 stop22h 05m

Hanoi Noibai

Wed 9/2

11:30 pm-3:15 pm

1 stop29h 45m

$834

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 10/13

12:10 am-12:15 pm

1 stop22h 05m

Hanoi Noibai

Wed 11/11

11:50 pm-1:55 pm

1 stop29h 05m

$835

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Wed 2/10

8:45 am-3:05 pm

1 stop39h 20m

Hanoi Noibai

Fri 2/26

9:40 am-7:10 am

1 stop36h 30m

$837

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 Seattle to Hanoi

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 typical price of a round-trip flight between Seattle and Hanoi?

Prices are currently typical for flights on this route.

Typical prices usually range from $751 to $817.
The lowest price recently found on this route was $793.

What is the cheapest month to fly to Hanoi?

The cheapest month to fly to Hanoi from Seattle is in September. Flight prices, which tend to average around $658, are often lower during this time because this is during the off-season. If you’re not able to fly to Hanoi in September, then April is your next best option. Flight prices from Seattle to Hanoi during April average around $736.

How far in advance should I book a flight from Seattle to Hanoi?

You are more likely to see cheaper flights to Hanoi from Seattle when booking weeks ahead of your departure date. In general, you can expect to find flights to Hanoi for around $877 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Hanoi from Seattle for as low as $729 on momondo.

Can stopping save me money on Seattle to Hanoi flights?

You could potentially save up to 1% on your flight if you consider stops on a Seattle to Hanoi flight.

How have Seattle to Hanoi flight prices changed over time?

As of August 2026, prices for Seattle to Hanoi flights are approximately 36% cheaper when compared to flights at the same time last year.

When to book flights from Seattle to Hanoi

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

Estimated round-trip price

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

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

Fastest flight time	19h 45m
Direct flights	None

The fastest flight from Seattle to Hanoi takes 19h 45m

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

Search flight deals

Frequently asked questions about flying from Seattle to Hanoi

How far is Seattle/Tacoma Intl to Hanoi Noibai by plane?
The distance between Seattle/Tacoma Intl and Hanoi Noibai is about 6829.4 mi. Flights usually cover this in 19h 45m, depending on flying conditions and air traffic around both airports.
When did momondo last update prices for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport?
Prices for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport?
There are 8 operators available for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport as of August 2026.
How old do you have to be to fly from Seattle/Tacoma Intl Airport to Hanoi Noibai 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 Seattle/Tacoma Intl Airport to Hanoi Noibai Airport.
What documentation or ID do you need to fly to Hanoi Noibai Airport?
The travel and health documents required for your trip to Hanoi Noibai Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Hanoi Noibai Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.
What is the most popular airline from Seattle to Hanoi?
Based on momondo bookings for this flight route, the most popular airline on flight routes from Seattle to Hanoi is Asiana Airlines (42% of total bookings). The next most popular airlines are EVA Air (17%), China Airlines (14%), and Korean Air (10%).

Best airlines flying from Seattle to Hanoi

Compare and see reviews for airlines that fly from Seattle to Hanoi with momondo

Airline	Rating	Free Cancellation	Price
Delta	PriceFrom $400	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights
Singapore Airlines	PriceFrom $521	Free Cancellation	Rating 8.2 1,585 reviews	Search Singapore Airlines flights
Korean Air	PriceFrom $588	Free Cancellation	Rating 8.4 1,221 reviews	Search Korean Air flights
China Airlines	PriceFrom $614	Free Cancellation	Rating 8.3 841 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $625	Free Cancellation	Rating 8.1 557 reviews	Search Asiana Airlines flights
Philippine Airlines	PriceFrom $638	Free Cancellation	Rating 7.3 1,016 reviews	Search Philippine Airlines flights
EVA Air	PriceFrom $758	Free Cancellation	Rating 8.5 1,517 reviews	Search EVA Air flights
STARLUX Airlines	PriceFrom $771	Free Cancellation	Rating 8.8 371 reviews	Search STARLUX Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Seattle to Hanoi. momondo saves you time and could save you money on your trip.

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

All flight searches from Seattle to Hanoi on momondo can be filtered to show those which offer flexible booking policies.

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

momondo helps you find the best flight between Seattle and Hanoi by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

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

Yes momondo offers price alerts on flights to Hanoi from Seattle. 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.