How long does it take to fly to Bangkok Suvarnabhumi Airport?

Flight times vary depending on what airport in State of Washington you fly out of and what airport in Bangkok Suvarnabhumi Airport you fly into. For example, flying from Seattle to Bangkok Suvarnabhumi Airport takes 19h 45m on average. On the other hand, flying from Spokane to Bangkok Suvarnabhumi Airport takes 25h on average. Keep in mind that it’s always quicker to opt for a non-stop flight, so be sure to check momondo if there are any available for your route.

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

Philippine Airlines, Hainan Airlines, and Korean Air are the most popular carriers operating from Washington to Bangkok Suvarnabhumi

What airlines fly to Bangkok Suvarnabhumi Airport?

EVA Air, Asiana Airlines and China Airlines are the top three most popular airlines that fly to Bangkok Suvarnabhumi Airport from State of Washington 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 Bangkok Suvarnabhumi Airport. Keep in mind that there are 16 different airlines that fly to Bangkok Suvarnabhumi Airport on a routine basis, so you have a few additional options to choose from.

When did momondo last update prices for flights from Washington to Bangkok Suvarnabhumi Airport?

Prices for flights from Washington to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.

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

As of February 2026, there are 17 operators available to choose from for flights from Washington to Bangkok Suvarnabhumi Airport.

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

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 Washington to Bangkok Suvarnabhumi Airport.

What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

The travel and health documents you'll need for your trip to Bangkok Suvarnabhumi 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 Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

$330 Cheap Flights from State of Washington to Bangkok Suvarnabhumi Airport in 2026

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 Washington to Bangkok

Round-trip

One-way

Last minute

Cheap round-trip flights

Enter your travel dates to find the best prices.

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

12:20 pm - 2:55 pm

BKK

SEA

16h 35m

1 stop

$647Asiana Airlines

Sat, Feb 21 - Wed, Mar 11

12:10 am - 10:00 pm

SEA

BKK

30h 50m

1 stop

11:55 pm - 2:55 pm

BKK

SEA

29h 00m

1 stop

$648Asiana Airlines

Wed, Feb 25 - Tue, Mar 10

12:55 am - 10:40 am

SEA

BKK

19h 45m

1 stop

1:20 am - 2:55 pm

BKK

SEA

27h 35m

1 stop

$649Asiana Airlines

Thu, Apr 23 - Sat, May 2

5:06 pm - 12:20 pm

SEA

BKK

29h 14m

2 stops

6:30 pm - 8:45 am

BKK

SEA

28h 15m

1 stop

$652Multiple Airlines

Wed, May 6 - Mon, May 25

10:15 am - 12:20 pm

SEA

BKK

36h 05m

1 stop

8:15 pm - 8:45 am

BKK

SEA

50h 30m

1 stop

$654Singapore Airlines

Tue, Apr 21 - Tue, May 5

10:15 am - 8:05 am

SEA

BKK

31h 50m

1 stop

8:15 pm - 2:42 pm

BKK

SEA

32h 27m

2 stops

$661Multiple Airlines

Tue, Apr 21 - Tue, May 5

8:45 am - 8:25 am

SEA

BKK

32h 40m

1 stop

12:00 pm - 8:10 am

BKK

SEA

34h 10m

1 stop

$662Singapore Airlines

Fri, Mar 6 - Thu, Mar 19

7:41 pm - 4:40 pm

GEG

BKK

30h 59m

2 stops

1:10 pm - 11:11 pm

BKK

GEG

24h 01m

2 stops

$783STARLUX Airlines

Wed, Apr 22 - Thu, Apr 30

7:41 pm - 12:00 pm

GEG

BKK

26h 19m

2 stops

1:10 pm - 9:31 pm

BKK

GEG

22h 21m

2 stops

$784STARLUX Airlines

Wed, Apr 22 - Sun, May 10

6:25 am - 4:45 am

GEG

BKK

31h 20m

2 stops

7:55 pm - 9:20 pm

BKK

GEG

39h 25m

2 stops

$793China Eastern

Wed, Mar 4 - Wed, Mar 18

Hainan Airlines flights from State of Washington to Bangkok Suvarnabhumi Airport

Our best Hainan Airlines deals on State of Washington to Bangkok Suvarnabhumi Airport flight tickets

Hainan Airlines

Apr 30

SEA11:05 amSeattle/Tacoma Intl

33h 30m

1 stop

BKK10:35 amBangkok Suvarnabhumi

May 15

BKK1:50 pmBangkok Suvarnabhumi

33h 10m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$678

Hainan Airlines

Apr 18

SEA11:00 amSeattle/Tacoma Intl

22h 00m

1 stop

BKK11:00 pmBangkok Suvarnabhumi

May 1

BKK1:50 pmBangkok Suvarnabhumi

33h 10m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$687

Hainan Airlines

Mar 12

SEA11:05 amSeattle/Tacoma Intl

41h 00m

2 stops

BKK6:05 pmBangkok Suvarnabhumi

Mar 23

BKK1:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA9:00 amSeattle/Tacoma Intl

$689

Korean Air flights from State of Washington to Bangkok Suvarnabhumi Airport

Our best Korean Air deals on State of Washington to Bangkok Suvarnabhumi Airport flight tickets

Korean Air

Feb 15

SEA11:00 amSeattle/Tacoma Intl

22h 45m

1 stop

BKK12:45 amBangkok Suvarnabhumi

Mar 16

BKK2:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA10:00 amSeattle/Tacoma Intl

$746

Korean Air

Feb 15

SEA11:00 amSeattle/Tacoma Intl

22h 55m

1 stop

BKK12:55 amBangkok Suvarnabhumi

Mar 18

BKK2:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA10:00 amSeattle/Tacoma Intl

$751

Korean Air

Feb 16

SEA10:45 amSeattle/Tacoma Intl

47h 10m

2 stops

BKK12:55 amBangkok Suvarnabhumi

Mar 16

BKK2:05 amBangkok Suvarnabhumi

21h 55m

1 stop

SEA10:00 amSeattle/Tacoma Intl

$756

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Bangkok Suvarnabhumi Airport that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Sat 2/21

12:10 am-10:00 pm

1 stop30h 50m

Bangkok Suvarnabhumi

Wed 3/11

12:20 pm-2:55 pm

1 stop16h 35m

$647

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 2/25

12:10 am-10:00 pm

1 stop30h 50m

Bangkok Suvarnabhumi

Tue 3/10

11:55 pm-2:55 pm

1 stop29h 00m

$648

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Thu 4/23

12:55 am-10:40 am

1 stop19h 45m

Bangkok Suvarnabhumi

Sat 5/2

1:20 am-2:55 pm

1 stop27h 35m

$649

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Wed 5/6

5:06 pm-12:20 pm

2 stops29h 14m

Bangkok Suvarnabhumi

Mon 5/25

6:30 pm-8:45 am

1 stop28h 15m

$652

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 4/21

10:15 am-12:20 pm

1 stop36h 05m

Bangkok Suvarnabhumi

Tue 5/5

8:15 pm-8:45 am

1 stop50h 30m

$654

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Tue 4/21

10:15 am-8:05 am

1 stop31h 50m

Bangkok Suvarnabhumi

Tue 5/5

8:15 pm-2:42 pm

2 stops32h 27m

$661

SeattleBangkok

SEA - BKK

SEABKK

Seattle/Tacoma Intl

Fri 3/6

8:45 am-8:25 am

1 stop32h 40m

Bangkok Suvarnabhumi

Thu 3/19

12:00 pm-8:10 am

1 stop34h 10m

$662

SpokaneBangkok

GEG - BKK

GEGBKK

Spokane

Wed 4/22

7:41 pm-4:40 pm

2 stops30h 59m

Bangkok Suvarnabhumi

Thu 4/30

1:10 pm-11:11 pm

2 stops24h 01m

$783

SpokaneBangkok

GEG - BKK

GEGBKK

Spokane

Wed 4/22

7:41 pm-12:00 pm

2 stops26h 19m

Bangkok Suvarnabhumi

Sun 5/10

1:10 pm-9:31 pm

2 stops22h 21m

$784

SpokaneBangkok

GEG - BKK

GEGBKK

Spokane

Wed 3/4

6:25 am-4:45 am

2 stops31h 20m

Bangkok Suvarnabhumi

Wed 3/18

7:55 pm-9:20 pm

2 stops39h 25m

$793

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 State of Washington to Bangkok Suvarnabhumi Airport

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 Bangkok Suvarnabhumi Airport?

The month of September is, on average, the cheapest month to fly to Bangkok Suvarnabhumi Airport from State of Washington, with most prices found around $749. The month of February is another great option to travel to Bangkok Suvarnabhumi Airport, with average flight prices from State of Washington averaging around $769.

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

You are more likely to see cheaper flights to Bangkok Suvarnabhumi Airport from State of Washington when booking weeks ahead of your departure date. In general, you can expect to find flights to Bangkok Suvarnabhumi Airport for around $882 when searching weeks out. However, flight prices might be lower outside of this timeframe. For example, people recently found flights to Bangkok Suvarnabhumi Airport from State of Washington for as low as $747 on momondo.

Can stopping save me money on State of Washington to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 38% on your flight if you consider stops on a State of Washington to Bangkok Suvarnabhumi Airport flight.

Cheap State of Washington to Bangkok Suvarnabhumi Airport flight deals and tips

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

Fastest flight time	19h 20m
Direct flights	None

The fastest flight from State of Washington to Bangkok Suvarnabhumi Airport takes 19h 20m

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

Search flight deals

When did momondo last update prices for flights from Washington to Bangkok Suvarnabhumi Airport?
Prices for flights from Washington to Bangkok Suvarnabhumi Airport are refreshed on a daily basis.
How many operators does momondo search for flights from Washington to Bangkok Suvarnabhumi Airport?
As of February 2026, there are 17 operators available to choose from for flights from Washington to Bangkok Suvarnabhumi Airport.
How old do you have to be to fly from Washington to Bangkok Suvarnabhumi Airport?
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 Washington to Bangkok Suvarnabhumi Airport.
What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?
The travel and health documents you'll need for your trip to Bangkok Suvarnabhumi 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 Bangkok Suvarnabhumi Airport. It is always advisable to seek advice from your airline or a trusted third party, such as IATA.

Best airlines flying from State of Washington to Bangkok Suvarnabhumi Airport

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

Airline	Rating	Free Cancellation	Price
Philippine Airlines	PriceFrom $154	Free Cancellation	Rating 7.2 953 reviews	Search Philippine Airlines flights
Singapore Airlines	PriceFrom $514	Free Cancellation	Rating 8.2 1,451 reviews	Search Singapore Airlines flights
Asiana Airlines	PriceFrom $626	Free Cancellation	Rating 8.1 503 reviews	Search Asiana Airlines flights
Korean Air	PriceFrom $665	Free Cancellation	Rating 8.4 1,188 reviews	Search Korean Air flights
ANA	PriceFrom $683	Free Cancellation	Rating 8.4 1,089 reviews	Search ANA flights
Delta	PriceFrom $694	Free Cancellation	Rating 7.9 8,170 reviews	Search Delta flights
United Airlines	PriceFrom $700	Free Cancellation	Rating 7.4 9,251 reviews	Search United Airlines flights
China Airlines	PriceFrom $733	Free Cancellation	Rating 8.3 803 reviews	Search China Airlines flights
Cathay Pacific	PriceFrom $735	Free Cancellation	Rating 7.6 1,159 reviews	Search Cathay Pacific flights
STARLUX Airlines	PriceFrom $740	Free Cancellation	Rating 8.9 271 reviews	Search STARLUX Airlines flights

Pattaya

Ko Samet

Kanchanaburi

Cha-am

Ayutthaya

Ko Lan

Chonburi

Pak Chong

Sattahip

Phetchaburi

Why use momondo?

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

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

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

All flight searches from Washington to Bangkok on momondo can be filtered to show those which offer flexible booking policies.

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

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

If you are simply researching potential flights to Bangkok, momondo offers a useful price alert feature which will track prices for flights to Bangkok from Washington and alert you when they change.

An easier way to manage your Bangkok Suvarnabhumi Airport 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.

Start using Trips

Find my bookings

Get notified when prices go down

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

1 adult

Mon 3/9

Mon 3/16

Email me momondo's favorite deals

By creating a price alert you accept our terms of use and privacy policy.

Find better results for your trip to Bangkok

Popular cities

Other flights from Washington

Other flights to Bangkok

Airlines

Cabin classes

Complete your trip

Feeling lucky

Popular cities in Thailand

Flights to Bangkok Don Mueang Intl Airportfrom $768

Cheap flights from Washington to Bangkok from $330

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Washington to Bangkok departing on 4/12. 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 Washington to Bangkok

Cheap round-trip flights

Cheap one-way flights

Cheap last minute flights

Hainan Airlines flights from State of Washington to Bangkok Suvarnabhumi Airport

Our best Hainan Airlines deals on State of Washington to Bangkok Suvarnabhumi Airport flight tickets

Korean Air flights from State of Washington to Bangkok Suvarnabhumi Airport

Our best Korean Air deals on State of Washington to Bangkok Suvarnabhumi Airport flight tickets

momondo Fare Finder

Use the filters below to find and compare flights from Washington to Bangkok Suvarnabhumi Airport that are best for you.

See travel insights to Bangkok from

How to get the cheapest flight ticket from State of Washington to Bangkok Suvarnabhumi Airport

What is the cheapest month to fly to Bangkok Suvarnabhumi Airport?

How far in advance should I book a flight to Bangkok Suvarnabhumi Airport?

Can stopping save me money on State of Washington to Bangkok Suvarnabhumi Airport flights?

You could potentially save up to 38% on your flight if you consider stops on a State of Washington to Bangkok Suvarnabhumi Airport flight.

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

Philippine Airlines, Hainan Airlines, and Korean Air are the most popular carriers operating from Washington to Bangkok Suvarnabhumi

What airlines fly to Bangkok Suvarnabhumi Airport?

How long does it take to fly to Bangkok Suvarnabhumi Airport?

Cheap State of Washington to Bangkok Suvarnabhumi Airport flight deals and tips

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

Fastest flight time

Direct flights

When did momondo last update prices for flights from Washington to Bangkok Suvarnabhumi Airport?

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

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

What documentation or ID do you need to fly to Bangkok Suvarnabhumi Airport?

Best airlines flying from State of Washington to Bangkok Suvarnabhumi Airport

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

Traveling to a place near Bangkok?

Why use momondo?

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

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

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

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

An easier way to manage your Bangkok Suvarnabhumi Airport 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 Bangkok

Popular cities in Thailand

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

State of Washington flight routes

According to popular flight searches on momondo this year

Bangkok Suvarnabhumi Airport flight routes

According to popular flight searches on momondo this year

Fly your favorite airline to Bangkok

Airlines are sorted and displayed according to clicks in the past 7 days on momondo

Cabin classes currently available on flights to Bangkok

List of cabin classes available on flights landing in Bangkok. Availability may vary depending on flight origin and airline.

Complete your trip to Bangkok

Explore popular destinations other users love

According to popular flight searches on momondo this year