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

Delta, Qatar Airways, and United Airlines are the most popular carriers operating from Bangkok to Seattle/Tacoma Intl

What airlines fly to Seattle?

EVA Air, STARLUX 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 35% of people opting to fly with this airline when traveling to Seattle. Keep in mind that there are 7 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 7 as of April 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.

$495 Cheap Flights from Bangkok to Seattle in 2026

Q: 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 $1,138 to $731. The lowest price recently found on this route was $700.

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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.

9:35 am - 4:27 pm

BKK

SEA

44h 52m

2 stops

2:52 pm - 9:35 am

SEA

BKK

28h 43m

2 stops

$700United Airlines

Mon, Oct 5 - Thu, Oct 22

3:45 pm - 9:22 am

BKK

SEA

31h 37m

3 stops

6:51 pm - 9:35 am

SEA

BKK

24h 44m

2 stops

$703United Airlines

Tue, Oct 6 - Mon, Oct 19

3:45 pm - 11:19 pm

BKK

SEA

45h 34m

2 stops

6:57 am - 11:25 am

SEA

BKK

37h 28m

2 stops

$707United Airlines

Fri, Jun 5 - Mon, Nov 23

3:45 pm - 9:22 am

BKK

SEA

31h 37m

3 stops

8:35 am - 9:35 am

SEA

BKK

35h 00m

2 stops

$711United Airlines

Tue, Oct 6 - Thu, Oct 22

3:45 pm - 1:13 am

BKK

SEA

23h 28m

2 stops

6:57 am - 11:25 am

SEA

BKK

37h 28m

2 stops

$719United Airlines

Wed, Jun 3 - Mon, Nov 23

9:40 pm - 2:55 pm

BKK

SEA

31h 15m

1 stop

12:55 am - 1:05 am

SEA

BKK

34h 10m

1 stop

$740Multiple Airlines

Wed, Jun 17 - Mon, Jun 29

9:50 am - 2:55 pm

BKK

SEA

19h 05m

1 stop

12:55 am - 11:35 pm

SEA

BKK

32h 40m

1 stop

$758Multiple Airlines

Thu, May 21 - Thu, Jun 4

9:50 am - 2:55 pm

BKK

SEA

19h 05m

1 stop

12:55 am - 11:35 pm

SEA

BKK

32h 40m

1 stop

$761Multiple Airlines

Thu, May 21 - Thu, Jun 4

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

$765Asiana Airlines

Wed, Jun 3 - Mon, Nov 23

9:50 am - 3:25 pm

BKK

SEA

19h 35m

1 stop

12:55 am - 9:45 pm

SEA

BKK

30h 50m

1 stop

$775Multiple Airlines

Sun, Jul 12 - Mon, Jul 20

United Airlines flights from Bangkok to Seattle

Our best United Airlines deals on Bangkok to Seattle flight tickets

United Airlines

Oct 5

BKK9:35 amBangkok Suvarnabhumi

44h 52m

2 stops

SEA4:27 pmSeattle/Tacoma Intl

Oct 22

SEA2:52 pmSeattle/Tacoma Intl

28h 43m

2 stops

BKK9:35 amBangkok Suvarnabhumi

$700

United Airlines

Oct 6

BKK3:45 pmBangkok Suvarnabhumi

31h 37m

3 stops

SEA9:22 amSeattle/Tacoma Intl

Oct 19

SEA6:51 pmSeattle/Tacoma Intl

24h 44m

2 stops

BKK9:35 amBangkok Suvarnabhumi

$703

United Airlines

Oct 7

BKK9:35 amBangkok Suvarnabhumi

26h 21m

2 stops

SEA9:56 pmSeattle/Tacoma Intl

Oct 17

SEA5:15 amSeattle/Tacoma Intl

38h 20m

2 stops

BKK9:35 amBangkok Suvarnabhumi

$704

Qatar Airways flights from Bangkok to Seattle

Our best Qatar Airways deals on Bangkok to Seattle flight tickets

Qatar Airways

Apr 21

BKK7:45 pmBangkok Suvarnabhumi

32h 20m

1 stop

SEA2:05 pmSeattle/Tacoma Intl

May 4

SEA4:25 pmSeattle/Tacoma Intl

24h 25m

1 stop

BKK6:50 amBangkok Suvarnabhumi

$932

Qatar Airways

Apr 21

BKK7:45 pmBangkok Suvarnabhumi

32h 20m

1 stop

SEA2:05 pmSeattle/Tacoma Intl

May 2

SEA4:25 pmSeattle/Tacoma Intl

24h 25m

1 stop

BKK6:50 amBangkok Suvarnabhumi

$955

Qatar Airways

Apr 19

BKK1:00 amBangkok Suvarnabhumi

27h 05m

1 stop

SEA2:05 pmSeattle/Tacoma Intl

May 4

SEA4:25 pmSeattle/Tacoma Intl

24h 25m

1 stop

BKK6:50 amBangkok Suvarnabhumi

$957

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 10/5

9:35 am-4:27 pm

2 stops44h 52m

Seattle/Tacoma Intl

Thu 10/22

2:52 pm-9:35 am

2 stops28h 43m

$700

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/6

3:45 pm-9:22 am

3 stops31h 37m

Seattle/Tacoma Intl

Mon 10/19

6:51 pm-9:35 am

2 stops24h 44m

$703

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/5

3:45 pm-11:19 pm

2 stops45h 34m

Seattle/Tacoma Intl

Mon 11/23

6:57 am-11:25 am

2 stops37h 28m

$707

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/6

3:45 pm-9:22 am

3 stops31h 37m

Seattle/Tacoma Intl

Thu 10/22

8:35 am-9:35 am

2 stops35h 00m

$711

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 6/3

3:45 pm-1:13 am

2 stops23h 28m

Seattle/Tacoma Intl

Mon 11/23

6:57 am-11:25 am

2 stops37h 28m

$719

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 6/17

9:40 pm-2:55 pm

1 stop31h 15m

Seattle/Tacoma Intl

Mon 6/29

12:55 am-1:05 am

1 stop34h 10m

$740

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 5/21

9:50 am-2:55 pm

1 stop19h 05m

Seattle/Tacoma Intl

Thu 6/4

12:55 am-11:35 pm

1 stop32h 40m

$758

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 5/21

9:50 am-2:55 pm

1 stop19h 05m

Seattle/Tacoma Intl

Thu 6/4

12:55 am-11:35 pm

1 stop32h 40m

$761

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 6/3

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Mon 11/23

12:10 am-10:00 pm

1 stop30h 50m

$765

Quickest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 7/12

9:50 am-3:25 pm

1 stop19h 35m

Seattle/Tacoma Intl

Mon 7/20

12:55 am-9:45 pm

1 stop30h 50m

$775

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?

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 $766.

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 $868 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 $737 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	18h 50m
Direct flights	None

The fastest flight from Bangkok to Seattle takes 18h 50m

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. 18h 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 7 as of April 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 $625	Free Cancellation	Rating 7.3 985 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 515 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 8.9 296 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.5 1,403 reviews	Search EVA Air flights
China Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
Korean Air	PriceFrom $799	Free Cancellation	Rating 8.4 1,203 reviews	Search Korean Air flights
Delta	PriceFrom $831	Free Cancellation	Rating 7.9 8,402 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Marysville

Puyallup

Lakewood

Cle Elum

Tukwila

Federal Way

Centralia

Fife

Westport

Tumwater

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.