What airlines fly to State of Washington?

Philippine Airlines, EVA Air and Korean Air are the top three most popular airlines that fly to State of Washington from Thailand according to our data. Philippine Airlines is the first choice among our users, with 32% 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.

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

Philippine Airlines, Singapore Airlines, and China Airlines are the most popular carriers operating from Thailand to Washington

How long is the flight from Thailand to State of Washington?

If you’re flying from a popular airport in Thailand, such as Bangkok or Chiang Mai, and flying into State of Washington, then you can expect flight times to average 19h 45m and 21h 55m, respectively.

When did momondo last update prices for flights from Thailand to Washington?

Prices for flights from Thailand to Washington refresh daily.

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

The number of operators available for flights from Thailand to Washington is 10 as of August 2025.

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

Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Washington.

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

The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

$424 Cheap Flights from Thailand to Washington in 2025

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Find the cheapest flights from Thailand to Washington

Round-trip

One-way

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Recent round-trip flight deals from Thailand to Washington

11:20 pm - 7:15 pmBKK-SEA

33h 55m1 stop

9:30 pm - 5:50 pmSEA-BKK

29h 20m1 stop

$583Philippine Airlines

Find Deal

Thu, Oct 9 - Wed, Nov 12

6:40 pm - 7:35 pmBKK-SEA

38h 55m1 stop

9:30 pm - 5:50 pmSEA-BKK

29h 20m1 stop

$584Philippine Airlines

Find Deal

Sat, Oct 25 - Fri, Nov 7

11:20 pm - 7:15 pmBKK-SEA

33h 55m1 stop

10:30 pm - 10:45 pmSEA-BKK

34h 15m1 stop

$596Philippine Airlines

Find Deal

Sat, Oct 18 - Sun, Oct 26

1:45 pm - 3:05 pmBKK-SEA

16h 20m1 stop

1:15 am - 4:40 pmSEA-BKK

25h 25m1 stop

$774STARLUX Airlines

Find Deal

Wed, Jan 21 - Tue, Apr 28

1:10 pm - 4:10 pmBKK-SEA

17h 00m1 stop

1:15 am - 4:40 pmSEA-BKK

25h 25m1 stop

$775STARLUX Airlines

Find Deal

Tue, Sep 16 - Tue, Oct 7

12:15 am - 9:00 amCNX-SEA

23h 45m1 stop

11:00 am - 11:05 pmSEA-CNX

21h 05m1 stop

$843Korean Air

Find Deal

Sat, Dec 20 - Tue, Jan 13

12:15 am - 9:00 amCNX-SEA

23h 45m1 stop

11:00 am - 11:05 pmSEA-CNX

21h 05m1 stop

$844Korean Air

Find Deal

Sat, Dec 20 - Wed, Jan 14

11:50 am - 5:40 pmCNX-SEA

20h 50m1 stop

12:10 am - 10:35 amSEA-CNX

19h 25m1 stop

$847EVA Air

Find Deal

Sat, Dec 20 - Sat, Jan 10

12:10 pm - 6:10 pmCNX-SEA

21h 00m2 stops

11:30 pm - 10:35 amSEA-CNX

20h 05m1 stop

$901EVA Air

Find Deal

Sat, Dec 20 - Tue, Dec 30

12:45 am - 12:30 pmCNX-SEA

25h 45m1 stop

2:15 pm - 11:40 pmSEA-CNX

19h 25m1 stop

$928Asiana Airlines

Find Deal

Mon, Sep 29 - Tue, Oct 7

United Airlines flights from Thailand to State of Washington

Our best United Airlines deals on Thailand to State of Washington flight tickets

United Airlines

Aug 26

BKK9:35 amBangkok Suvarnabhumi

26h 40m

2 stops

SEA10:15 pmSeattle/Tacoma Intl

Oct 9

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$1,029

Find similar

United Airlines

Aug 24

BKK7:00 amBangkok Suvarnabhumi

27h 54m

2 stops

SEA8:54 pmSeattle/Tacoma Intl

Aug 27

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$1,032

Find similar

United Airlines

Dec 18

BKK4:55 pmBangkok Suvarnabhumi

40h 53m

3 stops

PDX6:48 pmPortland

Jan 15

PDX5:45 amPortland

32h 25m

2 stops

BKK5:10 amBangkok Suvarnabhumi

$1,045

Find similar

Philippine Airlines flights from Thailand to State of Washington

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

Philippine Airlines

Oct 9

BKK11:20 pmBangkok Suvarnabhumi

33h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Nov 12

SEA9:30 pmSeattle/Tacoma Intl

29h 20m

1 stop

BKK5:50 pmBangkok Suvarnabhumi

$583

Find similar

Philippine Airlines

Oct 25

BKK6:40 pmBangkok Suvarnabhumi

38h 55m

1 stop

SEA7:35 pmSeattle/Tacoma Intl

Nov 7

SEA9:30 pmSeattle/Tacoma Intl

29h 20m

1 stop

BKK5:50 pmBangkok Suvarnabhumi

$584

Find similar

Philippine Airlines

Oct 18

BKK11:20 pmBangkok Suvarnabhumi

33h 55m

1 stop

SEA7:15 pmSeattle/Tacoma Intl

Oct 26

SEA10:30 pmSeattle/Tacoma Intl

34h 15m

1 stop

BKK10:45 pmBangkok Suvarnabhumi

$596

Find similar

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 10/9

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Wed 11/12

9:30 pm-5:50 pm

1 stop29h 20m

$583

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/25

6:40 pm-7:35 pm

1 stop38h 55m

Seattle/Tacoma Intl

Fri 11/7

9:30 pm-5:50 pm

1 stop29h 20m

$584

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/18

11:20 pm-7:15 pm

1 stop33h 55m

Seattle/Tacoma Intl

Sun 10/26

10:30 pm-10:45 pm

1 stop34h 15m

$596

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 1/21

1:45 pm-3:05 pm

1 stop16h 20m

Seattle/Tacoma Intl

Tue 4/28

1:15 am-4:40 pm

1 stop25h 25m

$774

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

$775

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 12/20

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Tue 1/13

11:00 am-11:05 pm

1 stop21h 05m

$843

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 12/20

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Wed 1/14

11:00 am-11:05 pm

1 stop21h 05m

$844

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 12/20

11:50 am-5:40 pm

1 stop20h 50m

Seattle/Tacoma Intl

Sat 1/10

12:10 am-10:35 am

1 stop19h 25m

$847

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 12/20

12:10 pm-6:10 pm

2 stops21h 00m

Seattle/Tacoma Intl

Tue 12/30

11:30 pm-10:35 am

1 stop20h 05m

$901

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Mon 9/29

12:45 am-12:30 pm

1 stop25h 45m

Seattle/Tacoma Intl

Tue 10/7

2:15 pm-11:40 pm

1 stop19h 25m

$928

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 Thailand 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

Other information

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 Thailand, 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 Thailand 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 Thailand 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 Thailand 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 Thailand 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 Thailand for as low as $738 on momondo.

Can stopping save me money on Thailand to State of Washington flights?

You could potentially save up to 42% on your flight if you consider stops on a Thailand to State of Washington flight.

Cheap Thailand to State of Washington flight deals and tips

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

Best Price Found	$424
Fastest flight time	15h 35m
Direct flights	None
Airports in State of Washington	2 airports

The best one-way flight to State of Washington from Thailand in the past 72 hours is $424. The best round-trip flight deal from Thailand to State of Washington found on momondo in the last 72 hours is $583.

The fastest flight from Thailand to State of Washington takes 15h 35m

There are no direct flights from Thailand to State of Washington. Popular non-direct routes for this connection are Bangkok Suvarnabhumi Airport - Portland Airport, Bangkok Suvarnabhumi Airport - Seattle/Tacoma Intl Airport and Chiang Mai Airport - Seattle/Tacoma Intl Airport.

There are 2 airports near State of Washington: Portland (PDX), Seattle/Tacoma Intl (SEA)

Search flight deals

When did momondo last update prices for flights from Thailand to Washington?
Prices for flights from Thailand to Washington refresh daily.
How many operators does momondo search for flights from Thailand to Washington?
The number of operators available for flights from Thailand to Washington is 10 as of August 2025.
How old do you have to be to fly from Thailand to Washington?
Although the minimum age for a child to fly alone is five, airlines that offer an unaccompanied minor (UMNR) service may have their own age limits, which could be impacted by factors such as flight length, timing, and layovers. It is recommended that you verify with the airline you are booking with for travel from Thailand to Washington.
What documentation or ID do you need to fly to Washington?
The travel and health documents required for your trip to Washington can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

Best airlines flying from Thailand to State of Washington

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

Airline	Rating	Free Cancellation	Price
Philippine Airlines	PriceFrom $551	Free Cancellation	Rating 7.2 895 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $622	Free Cancellation	Rating 8.2 476 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 9.0 206 reviews	Search STARLUX Airlines flights
China Airlines	PriceFrom $781	Free Cancellation	Rating 8.3 764 reviews	Search China Airlines flights
EVA Air	PriceFrom $788	Free Cancellation	Rating 8.4 1,232 reviews	Search EVA Air flights
Korean Air	PriceFrom $801	Free Cancellation	Rating 8.4 1,131 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 8.0 7,981 reviews	Search Delta flights
ANA	PriceFrom $867	Free Cancellation	Rating 8.4 934 reviews	Search ANA flights
Japan Airlines	PriceFrom $922	Free Cancellation	Rating 8.3 1,549 reviews	Search Japan Airlines flights

Why use momondo?

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

To find the flight that best suits your needs, momondo gathers a range of flights from a large pool of different airlines and agents; you can then use our insights and filters to find and book the right flight to Washington from Thailand.

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

Flights from Thailand to Washington with flexible booking policies can be found by using the search form above and then selecting our dedicated flexible booking filter, which will highlight only the flights where this policy is applied.

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

Once you have performed a search for Thailand to Washington 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 Thailand to Washington right now. Can momondo alert me if prices change?

If you are not ready to book a flight from Thailand to Washington now, use our insights above to find helpful tips or alternatively set up a price alert, where momondo will track prices on flights to Washington and let you know when they change.

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

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Popular cities in Washington

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Cheap flights from Thailand to Washington from $424

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Thailand to Washington departing on 9/25. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.

Big names and deals

Big names and deals

Filter for what you want

Filter for what you want

Trusted and free

Trusted and free

Price Alerts

Price Alerts

Find the cheapest flights from Thailand to Washington

Recent round-trip flight deals from Thailand to Washington

Recent one-way flight deals from Thailand to Washington

Recent last minute flight deals from Thailand to Washington

United Airlines flights from Thailand to State of Washington

Our best United Airlines deals on Thailand to State of Washington flight tickets

Philippine Airlines flights from Thailand to State of Washington

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

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How to get the cheapest flight ticket from Thailand 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

What is the cheapest month to fly to State of Washington?

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

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

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

Can stopping save me money on Thailand to State of Washington flights?

You could potentially save up to 42% on your flight if you consider stops on a Thailand to State of Washington flight.

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

Philippine Airlines, Singapore Airlines, and China Airlines are the most popular carriers operating from Thailand to Washington

What airlines fly to State of Washington?

How long is the flight from Thailand to State of Washington?

If you’re flying from a popular airport in Thailand, such as Bangkok or Chiang Mai, and flying into State of Washington, then you can expect flight times to average 19h 45m and 21h 55m, respectively.

Cheap Thailand to State of Washington flight deals and tips

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

Best Price Found

Fastest flight time

Direct flights

Airports in State of Washington

When did momondo last update prices for flights from Thailand to Washington?

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

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

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

Best airlines flying from Thailand to State of Washington

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

Why use momondo?

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

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

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

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

An easier way to manage your State of Washington trip

We make it super easy to schedule, organize and travel with friends or family. Trips is free — and available to use no matter where you book.

Get notified when prices go down

Daily price changes in your inbox - only with Price Alerts.

Find better results for your trip to Washington

Popular cities in Washington

Popular flights according to clicks in the last 7 days on momondo