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 24m.

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

Taipei City (TPE) has the shortest average layover time for this route: 3h 47m.

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

Incheon (ICN) was the most common stop: 53% of momondo users choosing 1-stop flights on this route connected there.

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

Flights via Singapore (SIN) offer the lowest average round-trip price of $643.

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

Singapore Airlines is the most popular carrier operating from Seattle/Tacoma Intl to Hanoi Noibai

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 46% of people opting to fly with this airline when traveling to Hanoi. Keep in mind that there are 7 different airlines that fly to Hanoi on a routine basis, so you have a few additional options to choose from.

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 7 operators available for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport as of October 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.

$284 Cheap Flights from Seattle to Hanoi in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Seattle to Hanoi

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

8:40 am - 5:30 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

41h 50m1 stop Singapore Changi

6:20 pm - 7:05 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

27h 45m1 stop Singapore Changi

$641Singapore Airlines

Tue, Feb 16 - Tue, Mar 2

8:40 am - 5:30 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

41h 50m1 stop Singapore Changi

12:45 pm - 7:05 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

33h 20m1 stop Singapore Changi

$641Singapore Airlines

Tue, Feb 16 - Tue, Mar 2

9:30 pm - 1:25 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

36h 55m1 stop Manila Ninoy Aquino Intl

2:35 am - 6:45 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

31h 10m1 stop Manila Ninoy Aquino Intl

$658Philippine Airlines

Wed, Nov 11 - Tue, Nov 24

9:30 pm - 1:25 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

36h 55m1 stop Manila Ninoy Aquino Intl

2:35 am - 6:45 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

31h 10m1 stop Manila Ninoy Aquino Intl

$678Philippine Airlines

Sun, Nov 15 - Sat, Nov 21

12:50 pm - 11:10 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

31h 20m1 stop Incheon Intl

11:05 pm - 11:51 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

27h 46m1 stop Incheon Intl

$750Delta

Wed, Mar 3 - Wed, Mar 10

12:50 pm - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

17h 55m1 stop Incheon Intl

11:05 pm - 11:51 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

27h 46m1 stop Incheon Intl

$750Delta

Thu, Feb 25 - Mon, Mar 8

11:00 am - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

19h 45m1 stop Incheon Intl

12:20 pm - 2:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

16h 50m1 stop Incheon Intl

$815Korean Air

Mon, Nov 16 - Mon, Nov 23

11:00 am - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

19h 45m1 stop Incheon Intl

12:20 pm - 10:04 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

24h 44m2 stops Incheon Intl Los Angeles

$823Korean Air

Tue, Nov 17 - Tue, Nov 24

1:10 am - 11:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

20h 25m1 stop Taipei City Taiwan Taoyuan Intl

12:35 pm - 5:30 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

19h 55m1 stop Taipei City Taiwan Taoyuan Intl

$904EVA Air

Sat, Oct 31 - Tue, Nov 17

1:10 am - 11:35 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

20h 25m1 stop Taipei City Taiwan Taoyuan Intl

12:05 pm - 7:30 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

21h 25m1 stop Taipei City Taiwan Taoyuan Intl

$904EVA Air

Sat, Oct 31 - Thu, Apr 22

Cheap last minute flights

Enter your travel dates to find the best prices.

12:00 pm - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

19h 45m1 stop Incheon Intl

12:20 pm - 9:05 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

35h 45m1 stop Incheon Intl

$839Korean Air

Mon, Oct 26 - Mon, Nov 2

7:32 am - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

24h 13m2 stops Los Angeles Incheon Intl

12:20 pm - 9:05 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

35h 45m1 stop Incheon Intl

$874Delta

Mon, Oct 26 - Mon, Nov 2

7:32 am - 9:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

24h 13m2 stops Los Angeles Incheon Intl

11:05 pm - 8:27 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 22m2 stops Incheon Intl Los Angeles

$884Delta

Mon, Oct 26 - Mon, Nov 2

2:19 pm - 6:15 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

37h 56m2 stops Los Angeles Hong Kong Intl

7:25 pm - 8:45 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

28h 20m1 stop Hong Kong Intl

$923Multiple Airlines

Sat, Oct 24 - Sun, Nov 1

11:45 am - 3:45 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

38h 00m1 stop Hong Kong Intl

11:15 am - 9:45 amHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

36h 30m1 stop Hong Kong Intl

$941Cathay Pacific

Sat, Oct 24 - Fri, Oct 30

1:30 am - 11:05 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

19h 35m1 stop Taipei City Taiwan Taoyuan Intl

12:35 pm - 7:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

20h 35m1 stop Taipei City Taiwan Taoyuan Intl

$942EVA Air

Thu, Oct 22 - Sat, Oct 31

12:30 am - 11:05 amSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

20h 35m1 stop Taipei City Taiwan Taoyuan Intl

6:20 pm - 6:30 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

14h 10m1 stop Taipei City Taiwan Taoyuan Intl

$942EVA Air

Thu, Oct 22 - Sat, Oct 31

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

25h 35m1 stop Taipei City Taiwan Taoyuan Intl

5:30 pm - 7:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

15h 40m1 stop Taipei City Taiwan Taoyuan Intl

$961China Airlines

Thu, Oct 22 - Sat, Oct 31

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

25h 35m1 stop Taipei City Taiwan Taoyuan Intl

5:30 pm - 7:10 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

15h 40m1 stop Taipei City Taiwan Taoyuan Intl

$962China Airlines

Thu, Oct 22 - Sat, Oct 31

1:15 am - 1:55 pmSEA Seattle/Tacoma Intl-HAN Hanoi Noibai

22h 40m1 stop Taipei City Taiwan Taoyuan Intl

11:40 am - 4:05 pmHAN Hanoi Noibai-SEA Seattle/Tacoma Intl

18h 25m1 stop Taipei City Taiwan Taoyuan Intl

$1,090STARLUX Airlines

Fri, Oct 23 - Sat, Oct 31

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Singapore Airlines flights from Seattle to Hanoi

Our best Singapore Airlines deals on Seattle to Hanoi flight tickets

Singapore Airlines

Feb 24

SEA8:40 amSeattle/Tacoma Intl

39h 30m

1 stop

HAN3:10 pmHanoi Noibai

Mar 8

HAN12:45 pmHanoi Noibai

33h 20m

1 stop

SEA7:05 amSeattle/Tacoma Intl

$641

Singapore Airlines

Mar 28

SEA10:15 amSeattle/Tacoma Intl

41h 25m

1 stop

HAN5:40 pmHanoi Noibai

Apr 14

HAN4:15 pmHanoi Noibai

30h 30m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$643

Singapore Airlines

Mar 13

SEA8:40 amSeattle/Tacoma Intl

39h 30m

1 stop

HAN3:10 pmHanoi Noibai

Mar 29

HAN6:30 pmHanoi Noibai

28h 15m

1 stop

SEA8:45 amSeattle/Tacoma Intl

$665

STARLUX Airlines flights from Seattle to Hanoi

Our best STARLUX Airlines deals on Seattle to Hanoi flight tickets

STARLUX Airlines

Oct 31

SEA12:45 amSeattle/Tacoma Intl

19h 45m

1 stop

HAN10:30 amHanoi Noibai

Nov 17

HAN1:05 pmHanoi Noibai

17h 00m

1 stop

SEA3:05 pmSeattle/Tacoma Intl

$995

STARLUX Airlines

Oct 31

SEA12:45 amSeattle/Tacoma Intl

19h 45m

1 stop

HAN10:30 amHanoi Noibai

Nov 17

HAN1:05 pmHanoi Noibai

17h 00m

1 stop

SEA3:05 pmSeattle/Tacoma Intl

$996

STARLUX Airlines

Oct 31

SEA12:45 amSeattle/Tacoma Intl

19h 45m

1 stop

HAN10:30 amHanoi Noibai

Nov 17

HAN1:05 pmHanoi Noibai

17h 00m

1 stop

SEA3:05 pmSeattle/Tacoma Intl

$1,002

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 2/16

8:40 am-5:30 pm

1 stop41h 50m

Hanoi Noibai

Tue 3/2

6:20 pm-7:05 am

1 stop27h 45m

$641

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 2/16

8:40 am-5:30 pm

1 stop41h 50m

Hanoi Noibai

Tue 3/2

12:45 pm-7:05 am

1 stop33h 20m

$641

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Wed 11/11

9:30 pm-1:25 am

1 stop36h 55m

Hanoi Noibai

Tue 11/24

2:35 am-6:45 pm

1 stop31h 10m

$658

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Sun 11/15

9:30 pm-1:25 am

1 stop36h 55m

Hanoi Noibai

Sat 11/21

2:35 am-6:45 pm

1 stop31h 10m

$678

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Wed 3/3

12:50 pm-11:10 am

1 stop31h 20m

Hanoi Noibai

Wed 3/10

11:05 pm-11:51 am

1 stop27h 46m

$750

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Thu 2/25

12:50 pm-9:45 pm

1 stop17h 55m

Hanoi Noibai

Mon 3/8

11:05 pm-11:51 am

1 stop27h 46m

$750

Quickest round-trip

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Mon 11/16

11:00 am-9:45 pm

1 stop19h 45m

Hanoi Noibai

Mon 11/23

12:20 pm-2:10 pm

1 stop16h 50m

$815

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Tue 11/17

11:00 am-9:45 pm

1 stop19h 45m

Hanoi Noibai

Tue 11/24

12:20 pm-10:04 pm

2 stops24h 44m

$823

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Sat 10/31

1:10 am-11:35 am

1 stop20h 25m

Hanoi Noibai

Tue 11/17

12:35 pm-5:30 pm

1 stop19h 55m

$904

SeattleHanoi

SEA Seattle/Tacoma Intl - HAN Hanoi Noibai

SEAHAN

Seattle/Tacoma Intl

Sat 10/31

1:10 am-11:35 am

1 stop20h 25m

Hanoi Noibai

Thu 4/22

12:05 pm-7:30 pm

1 stop21h 25m

$904

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 low for flights on this route.

Typical prices usually range from $791 to $941.
The lowest price recently found on this route was $641.

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 $695, 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 $768.

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 $891 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 $675 on momondo.

Can stopping save me money on Seattle to Hanoi flights?

You could potentially save up to 34% 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 October 2026, prices for Seattle to Hanoi flights are approximately 19% 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

Best Price Found	$284
Fastest flight time	18h 10m
Direct flights	None

The best one-way flight to Hanoi from Seattle in the past 72 hours is $284. The best round-trip flight deal from Seattle to Hanoi found on momondo in the last 72 hours is $641.

The fastest flight from Seattle to Hanoi takes 18h 10m

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 18h 10m, 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 7 operators available for flights from Seattle/Tacoma Intl Airport to Hanoi Noibai Airport as of October 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 (40% of total bookings). The next most popular airlines are EVA Air (18%), China Airlines (16%), and Korean Air (13%).

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 8,664 reviews	Search Delta flights
Singapore Airlines	PriceFrom $521	Free Cancellation	Rating 8.2 1,627 reviews	Search Singapore Airlines flights
China Airlines	PriceFrom $614	Free Cancellation	Rating 8.3 853 reviews	Search China Airlines flights
Asiana Airlines	PriceFrom $628	Free Cancellation	Rating 8.1 567 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $668	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
EVA Air	PriceFrom $793	Free Cancellation	Rating 8.5 1,550 reviews	Search EVA Air flights
STARLUX Airlines	PriceFrom $797	Free Cancellation	Rating 8.7 400 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.