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

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

What airlines fly to Seattle?

EVA Air, STARLUX Airlines and Philippine Airlines 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 32% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 8 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 8 as of December 2025.

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.

$426 Cheap Flights from Bangkok to Seattle in 2025/26

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Find the cheapest flights from Bangkok to Seattle

Round-trip

One-way

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Cheap round-trip flights

Enter your travel dates to find the best prices.

1:05 am - 9:00 am

BKK

SEA

21h 55m1 stop

11:00 am - 12:20 pm

SEA

BKK

35h 20m1 stop

$632Hainan Airlines

Mon, Mar 23 - Sat, Apr 11

1:05 am - 9:00 am

BKK

SEA

21h 55m1 stop

11:00 am - 12:20 pm

SEA

BKK

35h 20m1 stop

$642Hainan Airlines

Mon, Mar 16 - Tue, Apr 7

1:20 pm - 6:40 pm

BKK

SEA

20h 20m1 stop

9:30 pm - 12:00 pm

SEA

BKK

23h 30m1 stop

$649Philippine Airlines

Thu, Dec 25 - Thu, Jan 22

1:50 pm - 9:00 am

BKK

SEA

33h 10m1 stop

11:00 am - 11:00 pm

SEA

BKK

22h 00m1 stop

$655Hainan Airlines

Mon, Mar 30 - Tue, Apr 21

11:40 pm - 8:05 pm

BKK

SEA

34h 25m1 stop

11:10 pm - 6:30 pm

SEA

BKK

29h 20m1 stop

$656Philippine Airlines

Mon, Jun 1 - Tue, Sep 1

11:40 pm - 8:05 pm

BKK

SEA

34h 25m1 stop

11:10 pm - 12:10 pm

SEA

BKK

23h 00m1 stop

$657Philippine Airlines

Mon, Jun 1 - Wed, Sep 16

1:25 pm - 8:05 pm

BKK

SEA

20h 40m1 stop

11:10 pm - 12:10 pm

SEA

BKK

23h 00m1 stop

$658Philippine Airlines

Tue, Mar 31 - Fri, Jun 5

11:40 pm - 8:05 pm

BKK

SEA

34h 25m1 stop

11:10 pm - 6:30 pm

SEA

BKK

29h 20m1 stop

$659Philippine Airlines

Tue, Jun 2 - Tue, Jun 23

1:25 pm - 8:05 pm

BKK

SEA

20h 40m1 stop

11:10 pm - 10:40 pm

SEA

BKK

33h 30m1 stop

$664Philippine Airlines

Tue, Mar 31 - Fri, Jun 5

9:20 am - 10:06 pm

DMK

SEA

27h 46m2 stops

8:45 am - 12:35 am

SEA

DMK

24h 50m2 stops

$926Multiple Airlines

Tue, Jan 27 - Sun, Feb 8

Hainan Airlines flights from Bangkok to Seattle

Our best Hainan Airlines deals on Bangkok to Seattle flight tickets

Hainan Airlines

Mar 23

BKK1:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Apr 11

SEA11:00 amSeattle/Tacoma Intl

35h 20m

1 stop

BKK12:20 pmBangkok Suvarnabhumi

$632

Find similar

Hainan Airlines

Mar 16

BKK1:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Apr 7

SEA11:00 amSeattle/Tacoma Intl

35h 20m

1 stop

BKK12:20 pmBangkok Suvarnabhumi

$642

Find similar

Hainan Airlines

Mar 30

BKK1:50 pmBangkok Suvarnabhumi

33h 10m

1 stop

SEA9:00 amSeattle/Tacoma Intl

Apr 21

SEA11:00 amSeattle/Tacoma Intl

22h 00m

1 stop

BKK11:00 pmBangkok Suvarnabhumi

$655

Find similar

Philippine Airlines flights from Bangkok to Seattle

Our best Philippine Airlines deals on Bangkok to Seattle flight tickets

Philippine Airlines

Dec 25

BKK1:20 pmBangkok Suvarnabhumi

20h 20m

1 stop

SEA6:40 pmSeattle/Tacoma Intl

Jan 22

SEA9:30 pmSeattle/Tacoma Intl

23h 30m

1 stop

BKK12:00 pmBangkok Suvarnabhumi

$649

Find similar

Philippine Airlines

Jun 1

BKK11:40 pmBangkok Suvarnabhumi

34h 25m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 1

SEA11:10 pmSeattle/Tacoma Intl

29h 20m

1 stop

BKK6:30 pmBangkok Suvarnabhumi

$656

Find similar

Philippine Airlines

Jun 1

BKK11:40 pmBangkok Suvarnabhumi

34h 25m

1 stop

SEA8:05 pmSeattle/Tacoma Intl

Sep 16

SEA11:10 pmSeattle/Tacoma Intl

23h 00m

1 stop

BKK12:10 pmBangkok Suvarnabhumi

$657

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/23

1:05 am-9:00 am

1 stop21h 55m

Seattle/Tacoma Intl

Sat 4/11

11:00 am-12:20 pm

1 stop35h 20m

$632

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/16

1:05 am-9:00 am

1 stop21h 55m

Seattle/Tacoma Intl

Tue 4/7

11:00 am-12:20 pm

1 stop35h 20m

$642

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 12/25

1:20 pm-6:40 pm

1 stop20h 20m

Seattle/Tacoma Intl

Thu 1/22

9:30 pm-12:00 pm

1 stop23h 30m

$649

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 3/30

1:50 pm-9:00 am

1 stop33h 10m

Seattle/Tacoma Intl

Tue 4/21

11:00 am-11:00 pm

1 stop22h 00m

$655

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

11:40 pm-8:05 pm

1 stop34h 25m

Seattle/Tacoma Intl

Tue 9/1

11:10 pm-6:30 pm

1 stop29h 20m

$656

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 6/1

11:40 pm-8:05 pm

1 stop34h 25m

Seattle/Tacoma Intl

Wed 9/16

11:10 pm-12:10 pm

1 stop23h 00m

$657

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/31

1:25 pm-8:05 pm

1 stop20h 40m

Seattle/Tacoma Intl

Fri 6/5

11:10 pm-12:10 pm

1 stop23h 00m

$658

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/2

11:40 pm-8:05 pm

1 stop34h 25m

Seattle/Tacoma Intl

Tue 6/23

11:10 pm-6:30 pm

1 stop29h 20m

$659

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/31

1:25 pm-8:05 pm

1 stop20h 40m

Seattle/Tacoma Intl

Fri 6/5

11:10 pm-10:40 pm

1 stop33h 30m

$664

BangkokSeattle

DMK - SEA

DMKSEA

Bangkok Don Mueang Intl

Tue 1/27

9:20 am-10:06 pm

2 stops27h 46m

Seattle/Tacoma Intl

Sun 2/8

8:45 am-12:35 am

2 stops24h 50m

$926

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 cheapest month to fly to Seattle?

In general, February 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 $748. If you don’t want to visit Seattle in February, then you should wait until December to fly from Bangkok, when ticket prices are also cheap, with an average price of $793.

What is the cheapest day to depart on your flight to Seattle?

On average, the least expensive day to fly to Seattle from Bangkok is on a Wednesday. momondo users have found tickets for Wednesday departures for as low as $960. However, this price may fluctuate depending on the airline, the season, and holidays. On the other hand, Thursday is the most expensive day to depart from Bangkok because it is more convenient for both business and leisure travelers. As a result, prices tend to be around $1,014.

What is the cheapest time of day to depart on your flight to Seattle?

Flying to Seattle from Bangkok at noon is the least expensive time of day to depart. momondo users have found prices as low as $651 when looking at flights departing at noon. Flights to Seattle are more costly in the afternoon, with an average ticket price of $1,039. Departure times in the afternoon fall within the peak daily travel times, which is why tickets can be more expensive.

How far in advance should I book a flight 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 $890 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 $772 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	16h 50m
Direct flights	None

The fastest flight from Bangkok to Seattle takes 16h 50m

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

Search flight deals

How far is Bangkok to Seattle/Tacoma Intl by plane?
A flight from Bangkok to Seattle/Tacoma Intl will travel around 7436.9 mi. 16h 50m 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 8 as of December 2025.
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 $624	Free Cancellation	Rating 7.3 941 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $651	Free Cancellation	Rating 8.2 492 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 8.9 243 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,296 reviews	Search EVA Air flights
ANA	PriceFrom $781	Free Cancellation	Rating 8.4 1,019 reviews	Search ANA flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.2 788 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,184 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,009 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Kent

Puyallup

Marysville

Redmond

Tukwila

Cle Elum

Federal Way

Lakewood

Fife

Westport

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.