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

China Airlines, STARLUX Airlines, and Delta are the most popular carriers operating from Bangkok to Seattle/Tacoma Intl

What airlines fly to Seattle?

EVA Air, Asiana Airlines and Delta are the top three most popular airlines that fly to Seattle from Bangkok according to our data. EVA Air is the first choice among our users, with 33% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 6 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 6 as of August 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.

$489 Cheap Flights from Bangkok to Seattle in 2026

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.

2:35 am - 10:40 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 05m1 stop Incheon Intl

12:50 pm - 9:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 55m1 stop Incheon Intl

$744Korean Air

Mon, Sep 28 - Tue, Oct 6

11:30 pm - 10:40 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

25h 10m1 stop Incheon Intl

12:50 pm - 9:45 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

18h 55m1 stop Incheon Intl

$752Korean Air

Sun, Sep 27 - Sun, Oct 4

10:50 am - 7:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

22h 55m1 stop Taipei City Taiwan Taoyuan Intl

1:15 am - 12:10 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 55m1 stop Taipei City Taiwan Taoyuan Intl

$771China Airlines

Thu, Sep 10 - Tue, Sep 22

11:45 am - 3:15 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

17h 30m1 stop Incheon Intl

12:10 am - 11:15 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 05m1 stop Incheon Intl

$772Asiana Airlines

Thu, Oct 22 - Thu, Nov 5

11:45 am - 3:15 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

17h 30m1 stop Incheon Intl

12:10 am - 11:15 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

21h 05m1 stop Incheon Intl

$772Asiana Airlines

Tue, Oct 20 - Tue, Oct 27

1:20 pm - 7:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

20h 25m1 stop Taipei City Taiwan Taoyuan Intl

1:15 am - 12:10 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 55m1 stop Taipei City Taiwan Taoyuan Intl

$773China Airlines

Thu, Sep 10 - Tue, Sep 22

11:15 pm - 11:56 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

27h 41m1 stop Incheon Intl

12:45 pm - 11:20 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

19h 35m1 stop Incheon Intl

$799Delta

Wed, Dec 2 - Sun, Jan 24

11:15 pm - 11:56 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

27h 41m1 stop Incheon Intl

12:45 pm - 11:20 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

19h 35m1 stop Incheon Intl

$799Delta

Wed, Dec 2 - Thu, Jan 28

5:50 pm - 4:10 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

36h 20m1 stop Taipei City Taiwan Taoyuan Intl

11:45 pm - 4:30 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

25h 45m1 stop Taipei City Taiwan Taoyuan Intl

$816STARLUX Airlines

Sat, Oct 3 - Sat, Mar 6

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

16h 20m1 stop Taipei City Taiwan Taoyuan Intl

1:15 am - 4:40 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

25h 25m1 stop Taipei City Taiwan Taoyuan Intl

$847STARLUX Airlines

Wed, Dec 16 - Wed, Jun 2

Cheap last minute flights

Enter your travel dates to find the best prices.

9:35 am - 9:59 amBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

62h 24m2 stops Tokyo Haneda San Francisco

4:30 pm - 4:35 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 05m1 stop Tokyo Haneda

$834United Airlines

Wed, Aug 19 - Wed, Sep 9

9:35 am - 6:29 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

46h 54m2 stops Tokyo Haneda San Francisco

4:30 pm - 4:35 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 05m1 stop Tokyo Haneda

$835United Airlines

Wed, Aug 19 - Wed, Sep 2

4:45 pm - 7:50 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

17h 05m1 stop Taipei City Taiwan Taoyuan Intl

2:10 am - 11:20 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

19h 10m1 stop Taipei City Taiwan Taoyuan Intl

$879EVA Air

Thu, Aug 20 - Tue, Aug 25

4:45 pm - 7:50 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

17h 05m1 stop Taipei City Taiwan Taoyuan Intl

2:10 am - 11:20 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

19h 10m1 stop Taipei City Taiwan Taoyuan Intl

$879EVA Air

Thu, Aug 20 - Sun, Aug 23

9:50 am - 9:59 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

26h 09m2 stops Incheon Intl Las Vegas Harry Reid Intl

1:00 pm - 1:05 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

22h 05m1 stop Incheon Intl

$912Delta

Thu, Aug 20 - Thu, Sep 17

2:35 am - 9:59 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

33h 24m2 stops Incheon Intl Las Vegas Harry Reid Intl

9:35 pm - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

36h 00m2 stops Los Angeles Incheon Intl

$913Delta

Tue, Aug 18 - Sat, Sep 12

7:30 pm - 8:05 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

38h 35m1 stop Manila Ninoy Aquino Intl

11:10 pm - 12:10 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

23h 00m1 stop Manila Ninoy Aquino Intl

$1,100Philippine Airlines

Wed, Aug 19 - Sun, Sep 6

1:35 am - 3:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

28h 10m1 stop Incheon Intl

12:10 am - 10:40 amSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

20h 30m1 stop Incheon Intl

$1,136Asiana Airlines

Mon, Aug 17 - Mon, Sep 7

1:35 am - 3:45 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

28h 10m1 stop Incheon Intl

12:10 am - 11:35 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

33h 25m1 stop Incheon Intl

$1,136Asiana Airlines

Mon, Aug 17 - Tue, Sep 8

7:30 pm - 8:05 pmBKK Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl

38h 35m1 stop Manila Ninoy Aquino Intl

11:10 pm - 6:30 pmSEA Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi

29h 20m1 stop Manila Ninoy Aquino Intl

$1,447Philippine Airlines

Tue, Aug 18 - Sun, Sep 6

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Asiana Airlines flights from Bangkok to Seattle

Our best Asiana Airlines deals on Bangkok to Seattle flight tickets

Asiana Airlines

Oct 20

BKK11:45 amBangkok Suvarnabhumi

17h 30m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Oct 27

SEA12:10 amSeattle/Tacoma Intl

21h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$772

Asiana Airlines

Oct 20

BKK11:45 amBangkok Suvarnabhumi

17h 30m

1 stop

SEA3:15 pmSeattle/Tacoma Intl

Oct 27

SEA12:10 amSeattle/Tacoma Intl

21h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$773

Asiana Airlines

Dec 2

BKK11:55 pmBangkok Suvarnabhumi

29h 00m

1 stop

SEA1:55 pmSeattle/Tacoma Intl

Jan 26

SEA12:10 amSeattle/Tacoma Intl

20h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$780

United Airlines flights from Bangkok to Seattle

Our best United Airlines deals on Bangkok to Seattle flight tickets

United Airlines

Sep 29

BKK9:35 amBangkok Suvarnabhumi

38h 28m

2 stops

SEA10:03 amSeattle/Tacoma Intl

Oct 6

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$833

United Airlines

Aug 19

BKK9:35 amBangkok Suvarnabhumi

62h 24m

2 stops

SEA9:59 amSeattle/Tacoma Intl

Sep 9

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$834

United Airlines

Sep 12

BKK7:00 amBangkok Suvarnabhumi

40h 49m

2 stops

SEA9:49 amSeattle/Tacoma Intl

Sep 19

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$835

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Mon 9/28

2:35 am-10:40 am

1 stop22h 05m

Seattle/Tacoma Intl

Tue 10/6

12:50 pm-9:45 pm

1 stop18h 55m

$744

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sun 9/27

11:30 pm-10:40 am

1 stop25h 10m

Seattle/Tacoma Intl

Sun 10/4

12:50 pm-9:45 pm

1 stop18h 55m

$752

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 9/10

10:50 am-7:45 pm

1 stop22h 55m

Seattle/Tacoma Intl

Tue 9/22

1:15 am-12:10 pm

1 stop20h 55m

$771

Quickest round-trip

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 10/22

11:45 am-3:15 pm

1 stop17h 30m

Seattle/Tacoma Intl

Thu 11/5

12:10 am-11:15 am

1 stop20h 05m

$772

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Tue 10/20

11:45 am-3:15 pm

1 stop17h 30m

Seattle/Tacoma Intl

Tue 10/27

12:10 am-11:15 am

1 stop21h 05m

$772

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Thu 9/10

1:20 pm-7:45 pm

1 stop20h 25m

Seattle/Tacoma Intl

Tue 9/22

1:15 am-12:10 pm

1 stop20h 55m

$773

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 12/2

11:15 pm-11:56 am

1 stop27h 41m

Seattle/Tacoma Intl

Sun 1/24

12:45 pm-11:20 pm

1 stop19h 35m

$799

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 12/2

11:15 pm-11:56 am

1 stop27h 41m

Seattle/Tacoma Intl

Thu 1/28

12:45 pm-11:20 pm

1 stop19h 35m

$799

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Sat 10/3

5:50 pm-4:10 pm

1 stop36h 20m

Seattle/Tacoma Intl

Sat 3/6

11:45 pm-4:30 pm

1 stop25h 45m

$816

BangkokSeattle

BKK Bangkok Suvarnabhumi - SEA Seattle/Tacoma Intl

BKKSEA

Bangkok Suvarnabhumi

Wed 12/16

1:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Wed 6/2

1:15 am-4:40 pm

1 stop25h 25m

$847

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 $888 to $1,033.
The lowest price recently found on this route was $752.

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 $742. If you don’t want to visit Seattle in March, then you should wait until December to fly from Bangkok, when ticket prices are also cheap, with an average price of $810.

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 $873 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 $741 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

Fastest flight time	17h 00m
Direct flights	None

The fastest flight from Bangkok to Seattle takes 17h 00m

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. 17h 00m 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 6 as of August 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
Philippine Airlines	PriceFrom $591	Free Cancellation	Rating 7.3 1,016 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 557 reviews	Search Asiana Airlines flights
EVA Air	PriceFrom $764	Free Cancellation	Rating 8.5 1,517 reviews	Search EVA Air flights
STARLUX Airlines	PriceFrom $772	Free Cancellation	Rating 8.8 371 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $786	Free Cancellation	Rating 8.3 841 reviews	Search China Airlines flights
Delta	PriceFrom $803	Free Cancellation	Rating 7.8 8,505 reviews	Search Delta flights

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 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.