What airlines fly to State of Washington?

EVA Air, STARLUX Airlines and Delta 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 31% 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.

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

China Airlines, Delta, and Qatar Airways 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 17h 57m and 21h 35m, 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 March 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.

$464 Cheap Flights from Thailand to Washington in 2026

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Find the cheapest flights from Thailand to Washington

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Enter your travel dates to find the best prices.

9:35 am - 2:25 pm

BKK

SEA

18h 50m

1 stop

8:45 am - 11:55 pm

SEA

BKK

25h 10m

2 stops

$687United Airlines

Tue, Jun 23 - Tue, Aug 4

7:00 am - 6:30 pm

BKK

SEA

25h 30m

2 stops

5:22 pm - 11:55 pm

SEA

BKK

40h 33m

2 stops

$688ANA

Fri, Jun 5 - Sat, Sep 5

1:25 pm - 8:05 pm

BKK

SEA

20h 40m

1 stop

11:10 pm - 8:55 am

SEA

BKK

19h 45m

1 stop

$689Philippine Airlines

Tue, Jun 23 - Tue, Aug 4

9:40 pm - 1:25 pm

BKK

SEA

29h 45m

1 stop

1:05 pm - 11:35 pm

SEA

BKK

20h 30m

1 stop

$690Delta

Tue, Jun 16 - Thu, Jul 9

11:35 pm - 2:25 pm

BKK

SEA

28h 50m

1 stop

3:45 pm - 6:30 am

SEA

BKK

23h 45m

1 stop

$691ANA

Sun, Jun 14 - Sat, Jan 9

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

12:55 am - 10:40 am

SEA

BKK

19h 45m

1 stop

$692Asiana Airlines

Thu, Apr 23 - Mon, May 4

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$831EVA Air

Wed, May 13 - Tue, Jun 30

8:00 pm - 7:30 pm

CNX

SEA

37h 30m

2 stops

12:50 am - 10:25 am

SEA

CNX

19h 35m

1 stop

$847EVA Air

Wed, May 13 - Tue, Jun 30

9:40 pm - 2:48 pm

BKK

PDX

31h 08m

2 stops

11:10 am - 1:05 am

PDX

BKK

23h 55m

2 stops

$873Korean Air

Wed, May 6 - Sat, Aug 15

9:40 pm - 2:48 pm

BKK

PDX

31h 08m

2 stops

11:10 am - 1:05 am

PDX

BKK

23h 55m

2 stops

$876Korean Air

Wed, May 6 - Sat, Aug 15

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 23

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Aug 4

SEA8:45 amSeattle/Tacoma Intl

25h 10m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$687

United Airlines

Jun 15

BKK3:45 pmBangkok Suvarnabhumi

23h 44m

2 stops

SEA1:29 amSeattle/Tacoma Intl

Jan 10

SEA6:29 amSeattle/Tacoma Intl

26h 51m

2 stops

BKK12:20 amBangkok Suvarnabhumi

$698

United Airlines

Jun 14

BKK9:35 amBangkok Suvarnabhumi

18h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jul 3

SEA3:33 pmSeattle/Tacoma Intl

47h 02m

2 stops

BKK4:35 amBangkok Suvarnabhumi

$824

ANA flights from Thailand to State of Washington

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

ANA

Jun 5

BKK7:00 amBangkok Suvarnabhumi

25h 30m

2 stops

SEA6:30 pmSeattle/Tacoma Intl

Sep 5

SEA5:22 pmSeattle/Tacoma Intl

40h 33m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$688

ANA

Jun 14

BKK11:35 pmBangkok Suvarnabhumi

28h 50m

1 stop

SEA2:25 pmSeattle/Tacoma Intl

Jan 9

SEA3:45 pmSeattle/Tacoma Intl

23h 45m

1 stop

BKK6:30 amBangkok Suvarnabhumi

$691

ANA

Jun 23

BKK7:00 amBangkok Suvarnabhumi

25h 32m

2 stops

SEA6:32 pmSeattle/Tacoma Intl

Aug 4

SEA8:45 amSeattle/Tacoma Intl

25h 10m

2 stops

BKK11:55 pmBangkok Suvarnabhumi

$699

Fly from

Fly to

Route

Depart

Return

Price

Cheapest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/23

9:35 am-2:25 pm

1 stop18h 50m

Seattle/Tacoma Intl

Tue 8/4

8:45 am-11:55 pm

2 stops25h 10m

$687

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Fri 6/5

7:00 am-6:30 pm

2 stops25h 30m

Seattle/Tacoma Intl

Sat 9/5

5:22 pm-11:55 pm

2 stops40h 33m

$688

Quickest round-trip

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/23

1:25 pm-8:05 pm

1 stop20h 40m

Seattle/Tacoma Intl

Tue 8/4

11:10 pm-8:55 am

1 stop19h 45m

$689

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 6/16

9:40 pm-1:25 pm

1 stop29h 45m

Seattle/Tacoma Intl

Thu 7/9

1:05 pm-11:35 pm

1 stop20h 30m

$690

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 6/14

11:35 pm-2:25 pm

1 stop28h 50m

Seattle/Tacoma Intl

Sat 1/9

3:45 pm-6:30 am

1 stop23h 45m

$691

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Thu 4/23

1:20 am-2:55 pm

1 stop27h 35m

Seattle/Tacoma Intl

Mon 5/4

12:55 am-10:40 am

1 stop19h 45m

$692

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

8:00 pm-7:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$831

Chiang MaiSeattle

CNX - SEA

CNXSEA

Chiang Mai

Wed 5/13

8:00 pm-7:30 pm

2 stops37h 30m

Seattle/Tacoma Intl

Tue 6/30

12:50 am-10:25 am

1 stop19h 35m

$847

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 5/6

9:40 pm-2:48 pm

2 stops31h 08m

Portland

Sat 8/15

11:10 am-1:05 am

2 stops23h 55m

$873

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Wed 5/6

9:40 pm-2:48 pm

2 stops31h 08m

Portland

Sat 8/15

11:10 am-1:05 am

2 stops23h 55m

$876

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 March is, on average, the cheapest month to fly to State of Washington from Thailand, with most prices found around $742. If you aren’t able to travel to State of Washington during the month of March, then flying in December is also cheap. Prices for this month can be found on momondo for an average of $766.

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 $867 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 $764 on momondo.

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	17h 05m
Direct flights	None

The fastest flight from Thailand to State of Washington takes 17h 05m

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

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 March 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 7.3 970 reviews	Search Philippine Airlines flights
Asiana Airlines	PriceFrom $655	Free Cancellation	Rating 8.1 506 reviews	Search Asiana Airlines flights
STARLUX Airlines	PriceFrom $705	Free Cancellation	Rating 9.0 292 reviews	Search STARLUX Airlines flights
EVA Air	PriceFrom $766	Free Cancellation	Rating 8.4 1,380 reviews	Search EVA Air flights
China Airlines	PriceFrom $776	Free Cancellation	Rating 8.3 816 reviews	Search China Airlines flights
Korean Air	PriceFrom $793	Free Cancellation	Rating 8.4 1,205 reviews	Search Korean Air flights
Delta	PriceFrom $829	Free Cancellation	Rating 7.9 8,312 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.