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

China Airlines and Korean Air are the most popular carriers operating from Bangkok to Seattle/Tacoma Intl

What airlines fly to Seattle?

Asiana Airlines, EVA Air and Delta are the top three most popular airlines that fly to Seattle from Bangkok according to our data. Asiana Airlines is the first choice among our users, with 36% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 5 different airlines that fly to Seattle on a routine basis, so you have a few additional options to choose from.

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

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

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

The number of operators available for flights from Bangkok to Seattle/Tacoma Intl Airport is 5 as of October 2026.

How old do you have to be to fly from Bangkok 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 Bangkok 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.

$478 Cheap Flights from Bangkok to Seattle in 2026/27

Discover deals from 900+ travel sites with momondo.

Find the cheapest flights from Bangkok to Seattle

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

1:05 am - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Beijing Capital

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

$764Hainan Airlines

Fri, Dec 11 - Sat, Jan 2

1:05 am - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Beijing Capital

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

$765Hainan Airlines

Fri, Dec 11 - Sat, Jan 2

4:20 pm - 8:20 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

31h 00m1 stop Beijing Capital

10:20 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 15m1 stop Beijing Capital

$798Hainan Airlines

Mon, Nov 23 - Tue, Jan 12

10:55 am - 6:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:50 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$808China Airlines

Sun, Nov 22 - Mon, Jan 11

10:55 am - 6:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 1:35 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

34h 25m1 stop Taipei City Taiwan Taoyuan Intl

$808China Airlines

Tue, Nov 24 - Tue, Jan 12

11:15 pm - 11:51 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

27h 36m1 stop Incheon Intl

12:40 pm - 12:20 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 40m1 stop Incheon Intl

$834Delta

Wed, Nov 25 - Tue, Jan 12

11:15 pm - 11:51 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

27h 36m1 stop Incheon Intl

12:40 pm - 12:20 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 40m1 stop Incheon Intl

$834Delta

Wed, Nov 25 - Wed, Jan 13

5:40 pm - 3:05 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

36h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:45 pm - 12:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

$860STARLUX Airlines

Sun, Nov 22 - Sat, Dec 5

1:45 pm - 3:05 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

16h 20m1 stop Taipei City Taiwan Taoyuan Intl

11:45 pm - 12:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

$860STARLUX Airlines

Fri, Dec 4 - Sun, Dec 6

8:25 am - 6:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

24h 45m1 stop Taipei City Taiwan Taoyuan Intl

9:36 pm - 11:10 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 34m2 stops Vancouver Intl Taipei City Taiwan Taoyuan Intl

$1,270EVA Air

Wed, Dec 23 - Wed, Dec 23

Cheap last minute flights

Enter your travel dates to find the best prices.

5:50 pm - 7:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

15h 20m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:50 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$815China Airlines

Sat, Oct 31 - Sun, Nov 1

2:35 am - 7:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

30h 35m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 9:50 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 40m1 stop Taipei City Taiwan Taoyuan Intl

$818China Airlines

Fri, Oct 30 - Sun, Nov 1

9:10 am - 9:40 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

39h 30m2 stops Tokyo Haneda San Francisco

3:40 pm - 5:10 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 30m1 stop Tokyo Haneda

$823United Airlines

Wed, Nov 4 - Thu, Nov 5

9:10 am - 6:22 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

24h 12m2 stops Tokyo Haneda Vancouver Intl

3:40 pm - 4:20 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

33h 40m1 stop Tokyo Haneda

$836ANA

Wed, Nov 4 - Tue, Nov 10

9:10 am - 1:20 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

19h 10m1 stop Tokyo Haneda

3:40 pm - 5:10 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 30m1 stop Tokyo Haneda

$839United Airlines

Wed, Nov 4 - Thu, Nov 5

9:10 am - 12:14 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

41h 04m2 stops Tokyo Haneda Los Angeles

12:20 pm - 5:10 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

49h 50m2 stops Los Angeles Tokyo Haneda

$845United Airlines

Sun, Nov 1 - Wed, Nov 11

5:40 pm - 3:05 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

36h 25m1 stop Taipei City Taiwan Taoyuan Intl

11:45 pm - 12:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 50m1 stop Taipei City Taiwan Taoyuan Intl

$860STARLUX Airlines

Sun, Nov 1 - Wed, Nov 11

10:55 am - 7:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 1:05 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 55m1 stop Taipei City Taiwan Taoyuan Intl

$3,120China Airlines

Sun, Nov 1 - Tue, Nov 3

10:55 am - 7:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 1:05 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 55m1 stop Taipei City Taiwan Taoyuan Intl

$3,121China Airlines

Sun, Nov 1 - Tue, Nov 3

10:55 am - 7:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 15m1 stop Taipei City Taiwan Taoyuan Intl

12:10 am - 1:05 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 55m1 stop Taipei City Taiwan Taoyuan Intl

$3,122China Airlines

Sun, Nov 1 - Tue, Nov 3

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China Airlines flights from Bangkok to Seattle

Our best China Airlines deals on Bangkok to Seattle flight tickets

China Airlines

Nov 20

BKK2:35 amBangkok Suvarnabhumi

30h 35m

1 stop

SEA6:10 pmSeattle/Tacoma Intl

Jan 12

SEA12:10 amSeattle/Tacoma Intl

34h 25m

1 stop

BKK1:35 amBangkok Suvarnabhumi

$808

China Airlines

Apr 1

BKK1:20 pmBangkok Suvarnabhumi

19h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Apr 29

SEA1:15 amSeattle/Tacoma Intl

20h 55m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

$809

China Airlines

Apr 4

BKK2:40 amBangkok Suvarnabhumi

30h 35m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Apr 11

SEA1:15 amSeattle/Tacoma Intl

20h 55m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

$811

Hainan Airlines flights from Bangkok to Seattle

Our best Hainan Airlines deals on Bangkok to Seattle flight tickets

Hainan Airlines

Dec 11

BKK1:05 amBangkok Suvarnabhumi

22h 15m

1 stop

SEA8:20 amSeattle/Tacoma Intl

Jan 2

SEA10:20 amSeattle/Tacoma Intl

22h 15m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$764

Hainan Airlines

Dec 11

BKK1:05 amBangkok Suvarnabhumi

22h 15m

1 stop

SEA8:20 amSeattle/Tacoma Intl

Jan 2

SEA10:20 amSeattle/Tacoma Intl

22h 15m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$765

Hainan Airlines

Nov 23

BKK4:20 pmBangkok Suvarnabhumi

31h 00m

1 stop

SEA8:20 amSeattle/Tacoma Intl

Jan 12

SEA10:20 amSeattle/Tacoma Intl

22h 15m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$798

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 12/11

1:05 am-8:20 am

1 stop22h 15m

Seattle/Tacoma Intl

Sat 1/2

10:20 am-11:35 pm

1 stop22h 15m

$764

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 12/11

1:05 am-8:20 am

1 stop22h 15m

Seattle/Tacoma Intl

Sat 1/2

10:20 am-11:35 pm

1 stop22h 15m

$765

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 11/23

4:20 pm-8:20 am

1 stop31h 00m

Seattle/Tacoma Intl

Tue 1/12

10:20 am-11:35 pm

1 stop22h 15m

$798

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 11/22

10:55 am-6:10 pm

1 stop22h 15m

Seattle/Tacoma Intl

Mon 1/11

12:10 am-9:50 am

1 stop18h 40m

$808

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 11/24

10:55 am-6:10 pm

1 stop22h 15m

Seattle/Tacoma Intl

Tue 1/12

12:10 am-1:35 am

1 stop34h 25m

$808

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 11/25

11:15 pm-11:51 am

1 stop27h 36m

Seattle/Tacoma Intl

Tue 1/12

12:40 pm-12:20 am

1 stop20h 40m

$834

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 11/25

11:15 pm-11:51 am

1 stop27h 36m

Seattle/Tacoma Intl

Wed 1/13

12:40 pm-12:20 am

1 stop20h 40m

$834

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 11/22

5:40 pm-3:05 pm

1 stop36h 25m

Seattle/Tacoma Intl

Sat 12/5

11:45 pm-12:35 pm

1 stop21h 50m

$860

Quickest round-trip

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Fri 12/4

1:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Sun 12/6

11:45 pm-12:35 pm

1 stop21h 50m

$860

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 12/23

8:25 am-6:10 pm

1 stop24h 45m

Seattle/Tacoma Intl

Wed 12/23

9:36 pm-11:10 am

2 stops22h 34m

$1,270

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 Bangkok 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

What is the typical price of a round-trip flight between Bangkok and Seattle?

Prices are currently low for flights on this route.

Typical prices usually range from $801 to $956.
The lowest price recently found on this route was $764.

What is the cheapest month to fly to Seattle?

In general, March is the cheapest month to fly from Bangkok to Seattle. Due to it being the ‘off-season’ during this time, you can expect flight prices to be around $725. If you don’t want to visit Seattle in March, then you should wait until February to fly from Bangkok, when ticket prices are also cheap, with an average price of $857.

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

You are more likely to see cheaper flights to Seattle from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to Seattle for around $891 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Seattle from Bangkok for as low as $720 on momondo.

Cheap Bangkok to Seattle flight deals and tips

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

Best Price Found	$478
Fastest flight time	19h 10m
Direct flights	None

The best one-way flight to Seattle from Bangkok in the past 72 hours is $478. The best round-trip flight deal from Bangkok to Seattle found on momondo in the last 72 hours is $764.

The fastest flight from Bangkok to Seattle takes 19h 10m

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

Search flight deals

Frequently asked questions about flying from Bangkok to Seattle

How far is Bangkok to Seattle/Tacoma Intl by plane?
A flight from Bangkok to Seattle/Tacoma Intl will travel around 7436.9 mi. 19h 10m is a normal flight duration for this route.
When did momondo last update prices for flights from Bangkok to Seattle/Tacoma Intl Airport?
Prices for flights from Bangkok to Seattle/Tacoma Intl Airport were last updated today.
How many operators does momondo search for flights from Bangkok to Seattle/Tacoma Intl Airport?
The number of operators available for flights from Bangkok to Seattle/Tacoma Intl Airport is 5 as of October 2026.
How old do you have to be to fly from Bangkok 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 Bangkok 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.

Best airlines flying from Bangkok to Seattle

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

Airline	Rating	Free Cancellation	Price
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 569 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $714	Free Cancellation	Rating 8.8 405 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $786	Free Cancellation	Rating 8.3 854 reviews	Search China Airlines flights
EVA Air	PriceFrom $792	Free Cancellation	Rating 8.5 1,552 reviews	Search EVA Air flights
Delta	PriceFrom $803	Free Cancellation	Rating 7.8 8,691 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Redmond

Kent

Federal Way

Lakewood

Fife

Lynnwood

Puyallup

Tukwila

Cle Elum

Marysville

Lacey

Kirkland

Centralia

Shoreline

Why use momondo?

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

momondo compares prices from hundreds of airlines and agents so you can find and book the best deal on flights from Bangkok to Seattle. Millions of users trust and use momondo every year so you are in good hands.

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

momondo does allow users to show only those flights to Seattle from Bangkok which offer a flexible booking policy as well as other useful filters and features.

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

Once you have performed a search for Bangkok 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 Bangkok to Seattle right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Bangkok to Seattle now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Seattle and let you know when they change.