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

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

What airlines fly to Seattle?

EVA Air, STARLUX Airlines and Asiana 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 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 July 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.

$510 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 $893 to $1,142. The lowest price recently found on this route was $770.

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.

9:50 am - 1:14 pm

BKK

SEA

17h 24m

1 stop

1:00 pm - 11:35 pm

SEA

BKK

20h 35m

1 stop

$770Delta

Tue, Oct 6 - Thu, Oct 15

11:30 pm - 1:37 pm

BKK

SEA

28h 07m

1 stop

1:40 pm - 12:45 am

SEA

BKK

21h 05m

1 stop

$772Delta

Wed, Sep 23 - Wed, Oct 28

2:35 am - 10:40 am

BKK

SEA

22h 05m

1 stop

12:00 pm - 11:20 pm

SEA

BKK

21h 20m

1 stop

$773Korean Air

Mon, Oct 19 - Wed, Oct 28

11:30 pm - 1:14 pm

BKK

SEA

27h 44m

1 stop

1:05 pm - 11:35 pm

SEA

BKK

20h 30m

1 stop

$779Delta

Sun, Oct 4 - Sun, Apr 4

11:30 pm - 1:14 pm

BKK

SEA

27h 44m

1 stop

1:00 pm - 1:05 am

SEA

BKK

22h 05m

1 stop

$780Delta

Tue, Oct 6 - Thu, Oct 15

12:20 pm - 1:55 pm

BKK

SEA

16h 35m

1 stop

12:10 am - 11:15 am

SEA

BKK

20h 05m

1 stop

$781Asiana Airlines

Sun, Dec 13 - Mon, Dec 28

2:35 am - 10:40 am

BKK

SEA

22h 05m

1 stop

12:50 pm - 11:35 pm

SEA

BKK

20h 45m

1 stop

$782Korean Air

Sat, Oct 3 - Sun, Mar 28

9:50 am - 1:37 pm

BKK

SEA

17h 47m

1 stop

1:00 pm - 9:45 pm

SEA

BKK

18h 45m

1 stop

$787Delta

Fri, Aug 21 - Thu, Sep 3

1:20 pm - 7:45 pm

BKK

SEA

20h 25m

1 stop

1:55 am - 12:10 pm

SEA

BKK

20h 15m

1 stop

$796China Airlines

Sun, Aug 16 - Sat, Aug 29

7:00 am - 4:20 pm

BKK

SEA

23h 20m

2 stops

4:30 pm - 4:35 am

SEA

BKK

22h 05m

1 stop

$801United Airlines

Tue, Jul 14 - Sat, Jul 25

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Delta flights from Bangkok to Seattle

Our best Delta deals on Bangkok to Seattle flight tickets

Delta

Oct 6

BKK9:50 amBangkok Suvarnabhumi

17h 24m

1 stop

SEA1:14 pmSeattle/Tacoma Intl

Oct 15

SEA1:00 pmSeattle/Tacoma Intl

20h 35m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$770

Delta

Sep 23

BKK11:30 pmBangkok Suvarnabhumi

28h 07m

1 stop

SEA1:37 pmSeattle/Tacoma Intl

Oct 28

SEA1:40 pmSeattle/Tacoma Intl

21h 05m

1 stop

BKK12:45 amBangkok Suvarnabhumi

$772

Delta

Oct 4

BKK11:30 pmBangkok Suvarnabhumi

27h 44m

1 stop

SEA1:14 pmSeattle/Tacoma Intl

Apr 4

SEA1:05 pmSeattle/Tacoma Intl

20h 30m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$779

Korean Air flights from Bangkok to Seattle

Our best Korean Air deals on Bangkok to Seattle flight tickets

Korean Air

Oct 19

BKK2:35 amBangkok Suvarnabhumi

22h 05m

1 stop

SEA10:40 amSeattle/Tacoma Intl

Oct 28

SEA12:00 pmSeattle/Tacoma Intl

21h 20m

1 stop

BKK11:20 pmBangkok Suvarnabhumi

$773

Korean Air

Oct 3

BKK2:35 amBangkok Suvarnabhumi

22h 05m

1 stop

SEA10:40 amSeattle/Tacoma Intl

Mar 28

SEA12:50 pmSeattle/Tacoma Intl

20h 45m

1 stop

BKK11:35 pmBangkok Suvarnabhumi

$782

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/6

9:50 am-1:14 pm

1 stop17h 24m

Seattle/Tacoma Intl

Thu 10/15

1:00 pm-11:35 pm

1 stop20h 35m

$770

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/23

11:30 pm-1:37 pm

1 stop28h 07m

Seattle/Tacoma Intl

Wed 10/28

1:40 pm-12:45 am

1 stop21h 05m

$772

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 10/19

2:35 am-10:40 am

1 stop22h 05m

Seattle/Tacoma Intl

Wed 10/28

12:00 pm-11:20 pm

1 stop21h 20m

$773

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 10/4

11:30 pm-1:14 pm

1 stop27h 44m

Seattle/Tacoma Intl

Sun 4/4

1:05 pm-11:35 pm

1 stop20h 30m

$779

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/6

11:30 pm-1:14 pm

1 stop27h 44m

Seattle/Tacoma Intl

Thu 10/15

1:00 pm-1:05 am

1 stop22h 05m

$780

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 12/13

12:20 pm-1:55 pm

1 stop16h 35m

Seattle/Tacoma Intl

Mon 12/28

12:10 am-11:15 am

1 stop20h 05m

$781

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/3

2:35 am-10:40 am

1 stop22h 05m

Seattle/Tacoma Intl

Sun 3/28

12:50 pm-11:35 pm

1 stop20h 45m

$782

Quickest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 8/21

9:50 am-1:37 pm

1 stop17h 47m

Seattle/Tacoma Intl

Thu 9/3

1:00 pm-9:45 pm

1 stop18h 45m

$787

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 8/16

1:20 pm-7:45 pm

1 stop20h 25m

Seattle/Tacoma Intl

Sat 8/29

1:55 am-12:10 pm

1 stop20h 15m

$796

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 7/14

7:00 am-4:20 pm

2 stops23h 20m

Seattle/Tacoma Intl

Sat 7/25

4:30 pm-4:35 am

1 stop22h 05m

$801

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, October 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 $515. If you don’t want to visit Seattle in October, then you should wait until February to fly from Bangkok, when ticket prices are also cheap, with an average price of $591.

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 $865 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 $747 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 24m
Direct flights	None

The fastest flight from Bangkok to Seattle takes 17h 24m

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 24m 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 July 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 1,005 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 550 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 8.9 352 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.5 1,482 reviews	Search EVA Air flights
China Airlines	PriceFrom $774	Free Cancellation	Rating 8.3 831 reviews	Search China Airlines flights
Delta	PriceFrom $803	Free Cancellation	Rating 7.8 8,454 reviews	Search Delta flights

Tacoma

Leavenworth

SeaTac

Ocean Shores

Renton

Olympia

Lynnwood

Redmond

Kent

Lakewood

Puyallup

Tukwila

Cle Elum

Federal Way

Fife

Marysville

Centralia

Kirkland

Shoreline

Westport

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.