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

Qatar Airways, China Airlines, and STARLUX Airlines are the most popular carriers operating from Thailand to Washington

What airlines fly to State of Washington?

EVA Air, STARLUX Airlines and Asiana Airlines are the top three most popular airlines that fly to State of Washington from Thailand according to our data. EVA Air is the first choice among our users, with 30% of people opting to fly with this airline when traveling to State of Washington. Keep in mind that there are 7 different airlines that fly to State of Washington on a routine basis, so you have a few additional options to choose from.

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 20h 05m and 21h 45m, 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 7 as of June 2026.

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.

$501 Cheap Flights from Thailand to Washington in 2026

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Find the cheapest flights from Thailand to Washington

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Recent round-trip flight deals from Thailand to Washington

Enter your travel dates to find the best prices.

11:55 pm - 2:55 pm

BKK

SEA

29h 00m

1 stop

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

$789Asiana Airlines

Sat, Oct 31 - Sun, Nov 29

1:35 am - 3:15 pm

BKK

SEA

27h 40m

1 stop

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

$790Asiana Airlines

Wed, Oct 21 - Thu, Nov 5

1:35 am - 3:15 pm

BKK

SEA

27h 40m

1 stop

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

$791Asiana Airlines

Wed, Oct 21 - Thu, Nov 5

9:35 am - 2:36 pm

BKK

SEA

43h 01m

2 stops

4:30 pm - 4:35 am

SEA

BKK

22h 05m

1 stop

$803United Airlines

Thu, Jun 18 - Wed, Sep 9

9:35 am - 2:25 pm

BKK

SEA

18h 50m

1 stop

1:30 pm - 9:35 am

SEA

BKK

30h 05m

2 stops

$806United Airlines

Thu, Jun 18 - Thu, Jul 9

9:30 pm - 10:00 am

BKK

SEA

26h 30m

1 stop

11:00 am - 9:30 pm

SEA

BKK

19h 30m

1 stop

$807Korean Air

Tue, Oct 27 - Tue, Feb 16

12:15 am - 9:00 am

CNX

SEA

23h 45m

1 stop

11:00 am - 10:55 pm

SEA

CNX

20h 55m

1 stop

$818Korean Air

Sat, Nov 7 - Sun, Nov 29

5:20 pm - 4:10 pm

CNX

SEA

36h 50m

1 stop

1:15 am - 4:20 pm

SEA

CNX

25h 05m

1 stop

$842STARLUX Airlines

Thu, Jun 25 - Thu, Sep 3

5:20 pm - 4:10 pm

CNX

SEA

36h 50m

1 stop

1:15 am - 4:20 pm

SEA

CNX

25h 05m

1 stop

$851STARLUX Airlines

Thu, Jun 18 - Thu, Jul 9

11:35 am - 7:40 pm

CNX

SEA

22h 05m

1 stop

1:10 am - 10:25 am

SEA

CNX

19h 15m

1 stop

$896EVA Air

Fri, Jun 19 - Thu, Jul 9

United Airlines flights from Thailand to State of Washington

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

United Airlines

Jun 18

BKK9:35 amBangkok Suvarnabhumi

43h 01m

2 stops

SEA2:36 pmSeattle/Tacoma Intl

Sep 9

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$803

United Airlines

Jun 8

BKK9:35 amBangkok Suvarnabhumi

26h 33m

2 stops

SEA10:08 pmSeattle/Tacoma Intl

Jun 24

SEA4:30 pmSeattle/Tacoma Intl

22h 05m

1 stop

BKK4:35 amBangkok Suvarnabhumi

$805

United Airlines

Jun 18

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 9

SEA1:30 pmSeattle/Tacoma Intl

30h 05m

2 stops

BKK9:35 amBangkok Suvarnabhumi

$806

ANA flights from Thailand to State of Washington

Our best ANA deals on Thailand to State of Washington flight tickets

ANA

Jun 19

BKK1:55 pmBangkok Suvarnabhumi

38h 30m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 9

SEA8:45 amSeattle/Tacoma Intl

23h 30m

2 stops

BKK10:15 pmBangkok Suvarnabhumi

$804

ANA

Jun 15

BKK9:35 amBangkok Suvarnabhumi

22h 55m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

Jan 10

SEA3:45 pmSeattle/Tacoma Intl

33h 35m

1 stop

BKK4:20 pmBangkok Suvarnabhumi

$809

ANA

Jun 18

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 11

SEA6:00 amSeattle/Tacoma Intl

37h 35m

1 stop

BKK9:35 amBangkok Suvarnabhumi

$817

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sat 10/31

11:55 pm-2:55 pm

1 stop29h 00m

Seattle/Tacoma Intl

Sun 11/29

12:10 am-10:00 pm

1 stop30h 50m

$789

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 10/21

1:35 am-3:15 pm

1 stop27h 40m

Seattle/Tacoma Intl

Thu 11/5

12:10 am-10:00 pm

1 stop30h 50m

$790

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Wed 10/21

1:35 am-3:15 pm

1 stop27h 40m

Seattle/Tacoma Intl

Thu 11/5

12:10 am-10:00 pm

1 stop30h 50m

$791

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 6/18

9:35 am-2:36 pm

2 stops43h 01m

Seattle/Tacoma Intl

Wed 9/9

4:30 pm-4:35 am

1 stop22h 05m

$803

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 6/18

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Thu 7/9

1:30 pm-9:35 am

2 stops30h 05m

$806

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 10/27

9:30 pm-10:00 am

1 stop26h 30m

Seattle/Tacoma Intl

Tue 2/16

11:00 am-9:30 pm

1 stop19h 30m

$807

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Sat 11/7

12:15 am-9:00 am

1 stop23h 45m

Seattle/Tacoma Intl

Sun 11/29

11:00 am-10:55 pm

1 stop20h 55m

$818

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/25

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Thu 9/3

1:15 am-4:20 pm

1 stop25h 05m

$842

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Thu 6/18

5:20 pm-4:10 pm

1 stop36h 50m

Seattle/Tacoma Intl

Thu 7/9

1:15 am-4:20 pm

1 stop25h 05m

$851

Quickest round-trip

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Fri 6/19

11:35 am-7:40 pm

1 stop22h 05m

Seattle/Tacoma Intl

Thu 7/9

1:10 am-10:25 am

1 stop19h 15m

$896

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 October is, on average, the cheapest month to fly to State of Washington from Thailand, with most prices found around $515. If you aren’t able to travel to State of Washington during the month of October, then flying in February is also cheap. Prices for this month can be found on momondo for an average of $591.

How far in advance should I book a flight from Thailand to 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 $870 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 $733 on momondo.

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

You could potentially save up to 14% 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

Fastest flight time	16h 15m
Direct flights	None

The fastest flight from Thailand to State of Washington takes 16h 15m

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

Search flight deals

Frequently asked questions about flying from Thailand to Washington

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 7 as of June 2026.
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 $625	Free Cancellation	Rating 7.3 999 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 540 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $703	Free Cancellation	Rating 8.9 329 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $764	Free Cancellation	Rating 8.5 1,465 reviews	Search EVA Air flights
China Airlines	PriceFrom $774	Free Cancellation	Rating 8.3 828 reviews	Search China Airlines flights
Korean Air	PriceFrom $793	Free Cancellation	Rating 8.4 1,218 reviews	Search Korean Air flights
Delta	PriceFrom $803	Free Cancellation	Rating 7.8 8,395 reviews	Search Delta 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.