What is the cheapest airline that flies from Bangkok to Washington?

Philippine Airlines, STARLUX Airlines, and China Airlines are the most popular carriers operating from Bangkok to Washington

What airlines fly to State of Washington?

Philippine Airlines, EVA Air and STARLUX Airlines are the top three most popular airlines that fly to State of Washington from Bangkok according to our data. Philippine Airlines is the first choice among our users, with 35% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 9 different airlines that fly to State of Washington 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 Washington?

Prices for flights from Bangkok to Washington were last updated today.

How many operators does momondo search for flights from Bangkok to Washington?

There are 10 operators available for flights from Bangkok to Washington as of August 2025.

How old do you have to be to fly from Bangkok to Washington?

The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bangkok to Washington.

What documentation or ID do you need to fly to Washington?

The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

$437 Cheap Flights from Bangkok to Washington in 2025

1 adult

0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Free Wi-Fi? Stopover? Instantly customize your results.

Trusted and free

We’re completely free to use - no hidden charges or fees.

Price Alerts

Not ready to book? to track prices.

Search flight deals

Find the cheapest flights from Bangkok to Washington

Round-trip

One-way

Last minute

Cheap round-trip flights

11:35 pm - 6:35 pmBKK-SEA

34h 00m1 stop

11:55 pm - 9:50 pmSEA-BKK

31h 55m1 stop

$664Philippine Airlines

Find Deal

Mon, Jan 19 - Wed, Apr 8

1:30 pm - 7:15 pmBKK-SEA

19h 45m1 stop

11:35 pm - 10:25 pmSEA-BKK

32h 50m1 stop

$665Philippine Airlines

Find Deal

Wed, Sep 17 - Wed, Oct 8

11:35 pm - 6:35 pmBKK-SEA

34h 00m1 stop

11:55 pm - 12:05 pmSEA-BKK

22h 10m1 stop

$667Philippine Airlines

Find Deal

Wed, Jan 21 - Fri, Apr 17

11:55 am - 12:30 pmBKK-SEA

38h 35m1 stop

12:10 am - 11:15 amSEA-BKK

20h 05m1 stop

$767Asiana Airlines

Find Deal

Fri, Sep 19 - Mon, Dec 8

5:50 pm - 4:10 pmBKK-SEA

36h 20m1 stop

11:45 pm - 4:30 pmSEA-BKK

25h 45m1 stop

$773STARLUX Airlines

Find Deal

Thu, Oct 16 - Sat, Nov 8

1:10 pm - 4:10 pmBKK-SEA

17h 00m1 stop

1:15 am - 4:40 pmSEA-BKK

25h 25m1 stop

$774STARLUX Airlines

Find Deal

Tue, Sep 16 - Tue, Oct 7

1:20 am - 12:30 pmBKK-SEA

25h 10m1 stop

12:10 am - 10:05 pmSEA-BKK

31h 55m1 stop

$779Asiana Airlines

Find Deal

Wed, Sep 17 - Mon, Oct 27

1:00 am - 7:13 pmBKK-PDX

33h 13m2 stops

5:45 pm - 12:45 amPDX-BKK

40h 00m2 stops

$836Delta

Find Deal

Thu, Nov 13 - Fri, Nov 28

2:35 am - 10:58 pmBKK-PDX

34h 23m2 stops

1:30 pm - 11:20 pmPDX-BKK

42h 50m2 stops

$926Delta

Find Deal

Sun, Sep 7 - Fri, Nov 7

4:45 pm - 6:20 amBKK-PDX

27h 35m2 stops

2:30 pm - 11:00 amPDX-BKK

30h 30m2 stops

$1,009EVA Air

Find Deal

Sat, Oct 4 - Sat, Oct 11

Asiana Airlines flights from Bangkok to State of Washington

Our best Asiana Airlines deals on Bangkok to State of Washington flight tickets

Asiana Airlines

Sep 19

BKK11:55 amBangkok Suvarnabhumi

38h 35m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Dec 8

SEA12:10 amSeattle/Tacoma Intl

20h 05m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$767

Find similar

Asiana Airlines

Sep 17

BKK1:20 amBangkok Suvarnabhumi

25h 10m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Oct 27

SEA12:10 amSeattle/Tacoma Intl

31h 55m

1 stop

BKK10:05 pmBangkok Suvarnabhumi

$779

Find similar

Asiana Airlines

Sep 3

BKK1:20 amBangkok Suvarnabhumi

25h 10m

1 stop

SEA12:30 pmSeattle/Tacoma Intl

Oct 25

SEA2:15 pmSeattle/Tacoma Intl

31h 00m

1 stop

BKK11:15 amBangkok Suvarnabhumi

$981

Find similar

Philippine Airlines flights from Bangkok to State of Washington

Our best Philippine Airlines deals on Bangkok to State of Washington flight tickets

Philippine Airlines

Jan 19

BKK11:35 pmBangkok Suvarnabhumi

34h 00m

1 stop

SEA6:35 pmSeattle/Tacoma Intl

Apr 8

SEA11:55 pmSeattle/Tacoma Intl

31h 55m

1 stop

BKK9:50 pmBangkok Suvarnabhumi

$664

Find similar

Philippine Airlines

Sep 17

BKK1:30 pmBangkok Suvarnabhumi

19h 45m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Oct 8

SEA11:35 pmSeattle/Tacoma Intl

32h 50m

1 stop

BKK10:25 pmBangkok Suvarnabhumi

$665

Find similar

Philippine Airlines

Jan 21

BKK11:35 pmBangkok Suvarnabhumi

34h 00m

1 stop

SEA6:35 pmSeattle/Tacoma Intl

Apr 17

SEA11:55 pmSeattle/Tacoma Intl

22h 10m

1 stop

BKK12:05 pmBangkok Suvarnabhumi

$667

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 1/19

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Wed 4/8

11:55 pm-9:50 pm

1 stop31h 55m

$664

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/17

1:30 pm-7:15 pm

1 stop19h 45m

Seattle/Tacoma Intl

Wed 10/8

11:35 pm-10:25 pm

1 stop32h 50m

$665

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

11:35 pm-6:35 pm

1 stop34h 00m

Seattle/Tacoma Intl

Fri 4/17

11:55 pm-12:05 pm

1 stop22h 10m

$667

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 9/19

11:55 am-12:30 pm

1 stop38h 35m

Seattle/Tacoma Intl

Mon 12/8

12:10 am-11:15 am

1 stop20h 05m

$767

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 10/16

5:50 pm-4:10 pm

1 stop36h 20m

Seattle/Tacoma Intl

Sat 11/8

11:45 pm-4:30 pm

1 stop25h 45m

$773

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 9/16

1:10 pm-4:10 pm

1 stop17h 00m

Seattle/Tacoma Intl

Tue 10/7

1:15 am-4:40 pm

1 stop25h 25m

$774

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 9/17

1:20 am-12:30 pm

1 stop25h 10m

Seattle/Tacoma Intl

Mon 10/27

12:10 am-10:05 pm

1 stop31h 55m

$779

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Thu 11/13

1:00 am-7:13 pm

2 stops33h 13m

Portland

Fri 11/28

5:45 pm-12:45 am

2 stops40h 00m

$836

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sun 9/7

2:35 am-10:58 pm

2 stops34h 23m

Portland

Fri 11/7

1:30 pm-11:20 pm

2 stops42h 50m

$926

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sat 10/4

4:45 pm-6:20 am

2 stops27h 35m

Portland

Sat 10/11

2:30 pm-11:00 am

2 stops30h 30m

$1,009

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 State of Washington

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 State of Washington?

The month of February is, on average, the cheapest month to fly to State of Washington from Bangkok, with most prices found around $741. If you aren’t able to travel to State of Washington during the month of February, then flying in November is also cheap. Prices for this month can be found on momondo for an average of $747.

What is the cheapest day to depart on your flight to State of Washington?

The cheapest day to depart from Bangkok to State of Washington is on a Wednesday. Travelers who choose to depart for State of Washington on a Wednesday will often find tickets for as low as $960. When flying out on a Thursday, the most expensive travel day of the week, you can expect to see flight prices from Bangkok to State of Washington for around $1,014.

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

The cheapest time of day to fly to State of Washington is at noon when flights can be purchased for as low as $651. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $1,039 on average. Flights to State of Washington from Bangkok in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

How far in advance should I book a flight to State of Washington?

You are more likely to see cheaper flights to State of Washington from Bangkok when booking weeks ahead of your departure date. In general, you can expect to find flights to State of Washington for around $907 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to State of Washington from Bangkok for as low as $738 on momondo.

Cheap Bangkok to State of Washington flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Bangkok to State of Washington

Direct flights	None

There are no direct flights from Bangkok to State of Washington. There are no popular flight routes from Bangkok to State of Washington.

Search flight deals

When did momondo last update prices for flights from Bangkok to Washington?
Prices for flights from Bangkok to Washington were last updated today.
How many operators does momondo search for flights from Bangkok to Washington?
There are 10 operators available for flights from Bangkok to Washington as of August 2025.
How old do you have to be to fly from Bangkok to Washington?
The minimum age for a child to fly alone is five, but airlines offering an unaccompanied minor (UNMR) service may have their age restrictions, such as regulations concerning flight duration, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Bangkok to Washington.
What documentation or ID do you need to fly to Washington?
The required travel and health documents for your Washington trip may vary depending on your itinerary and personal circumstances. As a general rule, you should carry multiple documents, including a national ID card or driver's license and a passport valid for six months after your intended arrival at Washington. We recommend that you seek guidance from your airline or a reliable third party such as IATA.

Best airlines flying from Bangkok to State of Washington

Compare and see reviews for airlines that fly from Bangkok to State of Washington with momondo

Airline	Rating	Free Cancellation	Price
Philippine Airlines	PriceFrom $551	Free Cancellation	Rating 7.2 899 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $638	Free Cancellation	Rating 8.2 475 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 9.0 207 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 764 reviews	Search China Airlines flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 7,981 reviews	Search Delta flights
EVA Air	PriceFrom $831	Free Cancellation	Rating 8.4 1,232 reviews	Search EVA Air flights
ANA	PriceFrom $867	Free Cancellation	Rating 8.4 938 reviews	Search ANA flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,552 reviews	Search Japan Airlines flights

Why use momondo?

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

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Bangkok to Washington. momondo saves you time and could save you money on your trip.

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

Yes. momondo allows you to filter the results for Bangkok to Washington flights to just show those with flexible booking policies.

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

Once you have performed a search in the form on the page, momondo provides useful filters and insights. We can show you the cheapest days and times to fly as well as help filter your options to help you make an informed choice when booking flights to Washington from Bangkok.

I’m not ready to book a flight from Bangkok to Washington right now. Can momondo alert me if prices change?

Of course. momondo tracks the price of Bangkok to Washington flights. All you need is a valid email address and we will do the rest; it is that quick and easy.