Cheap flights from Bangkok to Washington from $410

This is the cheapest one-way flight price found by a momondo user in the last 72 hours by searching for a flight from Bangkok to Washington departing on 12/8. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

Discover deals from 900+ travel sites with momondo.

Save money when you book flights with momondo

Big names and deals

Big names and deals

Search 100s of travel sites to compare prices.

Filter for what you want

Filter for what you want

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

Trusted and free

Trusted and free

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

Price Alerts

Price Alerts

Not ready to book? to track prices.

Find the cheapest flights from Bangkok to Washington

Cheap round-trip flights

Enter your travel dates to find the best prices.
Philippine Airlines Logo
6:45 pm - 6:40 pmBKK-SEA
38h 55m1 stop
Philippine Airlines Logo
9:30 pm - 11:00 pmSEA-BKK
34h 30m1 stop
$634Philippine Airlines
Find Deal
Tue, Nov 18 - Tue, Nov 25
Multiple Airlines Logo
2:05 am - 1:55 pmBKK-SEA
26h 50m1 stop
Multiple Airlines Logo
12:10 am - 12:55 amSEA-BKK
33h 45m1 stop
$637Multiple Airlines
Find Deal
Sun, Nov 16 - Sun, Nov 23
China Airlines Logo
2:05 pm - 6:10 pmBKK-SEA
19h 05m1 stop
China Airlines Logo
12:10 am - 1:35 amSEA-BKK
34h 25m1 stop
$729China Airlines
Find Deal
Tue, Nov 18 - Mon, Nov 24
China Airlines Logo
2:35 am - 6:10 pmBKK-SEA
30h 35m1 stop
China Airlines Logo
1:10 am - 9:50 amSEA-BKK
18h 40m1 stop
$753China Airlines
Find Deal
Mon, Feb 9 - Mon, Mar 9
STARLUX Airlines Logo
5:40 pm - 3:05 pmBKK-SEA
36h 25m1 stop
STARLUX Airlines Logo
11:45 pm - 4:30 pmSEA-BKK
25h 45m1 stop
$759STARLUX Airlines
Find Deal
Mon, Nov 17 - Mon, Nov 24
STARLUX Airlines Logo
5:40 pm - 3:05 pmBKK-SEA
36h 25m1 stop
STARLUX Airlines Logo
11:45 pm - 12:35 pmSEA-BKK
21h 50m1 stop
$761STARLUX Airlines
Find Deal
Sun, Nov 23 - Sun, Dec 7
EVA Air Logo
4:45 pm - 7:30 pmBKK-SEA
16h 45m1 stop
EVA Air Logo
1:50 am - 11:20 amSEA-BKK
19h 30m1 stop
$764EVA Air
Find Deal
Tue, Mar 31 - Thu, Jun 4
EVA Air Logo
12:25 pm - 6:50 pmBKK-SEA
20h 25m1 stop
EVA Air Logo
12:50 am - 1:05 pmSEA-BKK
22h 15m1 stop
$766EVA Air
Find Deal
Tue, Mar 31 - Thu, Jun 4
Delta Logo
9:40 am - 8:51 pmBKK-PDX
26h 11m2 stops
Delta Logo
9:11 am - 12:45 amPDX-BKK
24h 34m2 stops
$856Delta
Find Deal
Tue, Nov 4 - Thu, Nov 27
Delta Logo
11:15 pm - 9:51 pmBKK-PDX
36h 36m2 stops
Delta Logo
9:11 am - 11:20 pmPDX-BKK
23h 09m2 stops
$881Delta
Find Deal
Sat, Nov 1 - Mon, Nov 24

Philippine Airlines flights from Bangkok to State of Washington

Our best Philippine Airlines deals on Bangkok to State of Washington flight tickets
Philippine Airlines
Nov 18
BKK6:45 pmBangkok Suvarnabhumi
38h 55m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
Nov 25
SEA9:30 pmSeattle/Tacoma Intl
34h 30m
1 stop
BKK11:00 pmBangkok Suvarnabhumi
Philippine Airlines
Mar 17
BKK1:20 pmBangkok Suvarnabhumi
20h 20m
1 stop
SEA7:40 pmSeattle/Tacoma Intl
Mar 24
SEA10:30 pmSeattle/Tacoma Intl
23h 30m
1 stop
BKK12:00 pmBangkok Suvarnabhumi
Philippine Airlines
Mar 3
BKK11:50 pmBangkok Suvarnabhumi
33h 50m
1 stop
SEA6:40 pmSeattle/Tacoma Intl
Mar 24
SEA10:30 pmSeattle/Tacoma Intl
23h 30m
1 stop
BKK12:00 pmBangkok Suvarnabhumi

China Airlines flights from Bangkok to State of Washington

Our best China Airlines deals on Bangkok to State of Washington flight tickets
China Airlines
Nov 18
BKK2:05 pmBangkok Suvarnabhumi
19h 05m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Nov 24
SEA12:10 amSeattle/Tacoma Intl
34h 25m
1 stop
BKK1:35 amBangkok Suvarnabhumi
China Airlines
Feb 9
BKK2:35 amBangkok Suvarnabhumi
30h 35m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Mar 9
SEA1:10 amSeattle/Tacoma Intl
18h 40m
1 stop
BKK9:50 amBangkok Suvarnabhumi
China Airlines
Feb 9
BKK2:35 amBangkok Suvarnabhumi
30h 35m
1 stop
SEA6:10 pmSeattle/Tacoma Intl
Mar 9
SEA1:10 amSeattle/Tacoma Intl
18h 40m
1 stop
BKK9:50 amBangkok Suvarnabhumi

momondo Fare Finder

 
Customize your flight search to find flights from Bangkok to State of Washington that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, momondo users made 832,500 searches. Data last updated October 22, 2025.
Use the filters below to find and compare flights from Bangkok to Washington that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 11/18

6:45 pm-6:40 pm

1 stop38h 55m

Seattle/Tacoma Intl

Tue 11/25

9:30 pm-11:00 pm

1 stop34h 30m

$634

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 11/16

2:05 am-1:55 pm

1 stop26h 50m

Seattle/Tacoma Intl

Sun 11/23

12:10 am-12:55 am

1 stop33h 45m

$637

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 11/18

2:05 pm-6:10 pm

1 stop19h 05m

Seattle/Tacoma Intl

Mon 11/24

12:10 am-1:35 am

1 stop34h 25m

$729

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 2/9

2:35 am-6:10 pm

1 stop30h 35m

Seattle/Tacoma Intl

Mon 3/9

1:10 am-9:50 am

1 stop18h 40m

$753

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Mon 11/17

5:40 pm-3:05 pm

1 stop36h 25m

Seattle/Tacoma Intl

Mon 11/24

11:45 pm-4:30 pm

1 stop25h 45m

$759

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Sun 11/23

5:40 pm-3:05 pm

1 stop36h 25m

Seattle/Tacoma Intl

Sun 12/7

11:45 pm-12:35 pm

1 stop21h 50m

$761

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/31

4:45 pm-7:30 pm

1 stop16h 45m

Seattle/Tacoma Intl

Thu 6/4

1:50 am-11:20 am

1 stop19h 30m

$764

BangkokSeattle

BKK - SEA

BKKSEA

Bangkok Suvarnabhumi

Tue 3/31

12:25 pm-6:50 pm

1 stop20h 25m

Seattle/Tacoma Intl

Thu 6/4

12:50 am-1:05 pm

1 stop22h 15m

$766

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Tue 11/4

9:40 am-8:51 pm

2 stops26h 11m

Portland

Thu 11/27

9:11 am-12:45 am

2 stops24h 34m

$856

BangkokPortland

BKK - PDX

BKKPDX

Bangkok Suvarnabhumi

Sat 11/1

11:15 pm-9:51 pm

2 stops36h 36m

Portland

Mon 11/24

9:11 am-11:20 pm

2 stops23h 09m

$881

Flights are sorted by cheapest round-trip flights first.

Showing 1-10 of 20 resultsSorted by cheapest first
1
2

See travel insights to Washington from

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

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 $805. If you aren’t able to travel to State of Washington during the month of February, then flying in October is also cheap. Prices for this month can be found on momondo for an average of $816.

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 $902 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 $779 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.
  • 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?

  • 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 AirlinesPriceFrom $594Free CancellationRating
7.3
921 reviews
Search Philippine Airlines flights
Asiana AirlinesPriceFrom $651Free CancellationRating
8.2
485 reviews
Search Asiana Airlines flights
STARLUX AirlinesPriceFrom $705Free CancellationRating
8.9
219 reviews
Search STARLUX Airlines flights
EVA AirPriceFrom $775Free CancellationRating
8.4
1,254 reviews
Search EVA Air flights
ANAPriceFrom $781Free CancellationRating
8.4
990 reviews
Search ANA flights
China AirlinesPriceFrom $793Free CancellationRating
8.3
773 reviews
Search China Airlines flights
Korean AirPriceFrom $801Free CancellationRating
8.4
1,153 reviews
Search Korean Air flights
DeltaPriceFrom $829Free CancellationRating
7.9
7,977 reviews
Search Delta flights
Japan AirlinesPriceFrom $922Free CancellationRating
8.3
1,583 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.

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.
1 adult
Fri 11/21
Fri 11/28

Find better results for your trip to Washington

Popular cities in Washington

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