Cheap flights from Washington (WA) to Bangkok (BKK)

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How to find the cheapest flight from
Washington to Bangkok (BKK)

All the information you need to plan the best null to BKK flight in 2021: compare Washington to Bangkok flight prices with the expected peak season, weather and rainfall in Bangkok.
How far in advance should I book a flight from State of Washington to Bangkok?

To save up to 20% on this flight, we recommend booking at least 44 days prior to travel. The price may fluctuate and will likely increase closer to your departure date. Users on Cheapflights have found tickets from State of Washington to Bangkok from $803 1-2 weeks out and tickets from $867 for flights departing within the next 72 hours.

When is the cheapest time to fly from State of Washington to Bangkok (WA - TH1)?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from State of Washington to Bangkok as you normally would.

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

May is one of the best times of the year to fly to Bangkok from State of Washington. Prices for May average $757 per person but you can even find prices for as low as $614. The most expensive prices can be found in the month of December. Opting for a May flight can save you 62% on your journey compared to booking in May

Cheap flights from Washington to Bangkok in October, November 2021

The best prices found for Washington to BKK flights for October, November
4 Nov - 3 Dec
$685pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
15 Nov - 19 Jan
$697pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
15 Nov - 10 Dec
$705pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Washington to Bangkok 2021 flight deals

Cheap flights to Bangkok from Washington found for this year
4 Dec - 9 Dec
$643pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
4 Dec - 8 Dec
$655pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
3 Dec - 8 Dec
$657pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Last minute flights from Washington to Bangkok

Late deals on round-trip flights to Bangkok from Washington, departing today and this week
26 Oct - 7 Nov
$839pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
30 Oct - 27 Nov
$842pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
28 Oct - 2 Nov
$846pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

One-way flights to Bangkok from Washington

The cheapest one-way flights from Washington to Bangkok
3:35 am - 11:20 am
Japan Airlines
2 Stops
40h 45m
SEA - BKK
Japan Airlines
$484
KAYAK
9:35 am - 3:40 am
Singapore Airlines
3 Stops
51h 05m
SEA - BKK
Singapore Airlines
$517
Travelgenio
4:40 pm - 3:40 am
Multiple Airlines
3 Stops
44h 00m
SEA - BKK
Multiple Airlines
$519
SmartFares

Related info for your journey

Useful info, stats and facts about <span class="emphasized">Washington</span> to <span class="emphasized">Bangkok</span> flights.

Flight FAQs

From Washington to Bangkok

Which airlines flying from Washington to Bangkok have flexible cancellations due to COVID-19?

Some of our airline partners flying from Washington to Bangkok have new flexible policies in place due to COVID-19. EVA Air, Asiana Airlines, and Korean Air are some of the carriers where you may find flexible cancellation policies. You can use our site to filter for airlines like EVA Air with this kind of flexibility.

Can I find flights from State of Washington to Bangkok for under $700 on Cheapflights?

Yes, there are multiple flights from State of Washington to Bangkok for under $700. The cheapest flight booked recently is on Singapore Airlines for just $643, but on average you can expect to pay $666.

Are there last-minute flights available from State of Washington to Bangkok for under $900?

There are currently 20+ open flights from State of Washington to Bangkok within the next 7 days for less than $900.

What are the cheapest flights from State of Washington to Bangkok?

The cheapest flight price from State of Washington to Bangkok is $364. On average you can expect to pay $1,547. The most popular route, (Seattle/Tacoma Intl - Bangkok Suvarnabhumi), can usually be booked for $634.

What are the most popular routes from State of Washington to Bangkok?

The most popular flight routes from State of Washington to Bangkok are Seattle/Tacoma Intl - Bangkok Suvarnabhumi, Spokane - Bangkok Suvarnabhumi and Pasco Tri Cities - Bangkok Suvarnabhumi.

What are the most popular airlines that fly from State of Washington to Bangkok?

Before booking your flight from State of Washington to Bangkok check out the most popular airlines for this route: Major Airline, American Airlines or Air Canada.

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Rent a Car

Car Rentals in Bangkok

COVID Restrictions

View COVID Travel Restrictions for Bangkok, Thailand

Do I need a COVID test to fly to Bangkok from Washington?

Information is based on travel restrictions from Washington to Bangkok

Most visitors from Washington need to provide a negative COVID-19 test result and/or quarantine to enter Bangkok.

COVID-19 testing requirements
Visitors from Washington must present a negative RT-PCR (NAAT) test taken 72 hours before departing to Bangkok.

Quarantine requirements
Visitors from Washington are not required to quarantine after entering Bangkok.

Do I need a test to fly back to Washington from Bangkok?

Returning to Washington from Bangkok

COVID-19 testing requirements
Visitors from Bangkok must present a negative RT-PCR (NAAT) or Antigen (quick-test) test taken 72 hours before departing to Washington.

Quarantine requirements
Visitors from Bangkok are not required to quarantine after entering Washington.

Hide COVID Travel Restrictions for Bangkok, Thailand

Destination information for Bangkok

Things to know before you go - useful duration and weather info for your trip from Washington to Bangkok.
Today's exchange rate
$1 = ฿33.32
Average temperature for October in Bangkok
91.4 °F
Avg rainfall for October in Bangkok
10.9 ″

Airports servicing

Seattle King County/Boeing (BFI)
Bellingham (BLI)
Deer Harbor (DHB)
Wenatchee (EAT)
Eastsound Orcas Island (ESD)
Friday Harbor SPB (FBS)

Airports servicing Bangkok

Bangkok Suvarnabhumi (BKK)
Bangkok Don Mueang Intl (DMK)

Top 10 airlines flying from Washington to Bangkok

The chart below displays the airlines Cheapflights users traveling from Washington to Bangkok choose most often. Cheapest and average prices are based on aggregated data from the past 12 months.
Airline Cheapest Average Flexibility On-time COVID-19 safety
XiamenAir
$459 $608 No cancel fee 49%

We couldn't confirm the COVID-19 safety measures taken by XiamenAir. Please check directly on their website for additional information.

Singapore Airlines
$525 $683 No cancel fee 81%
ANA
$587 $807 No cancel fee 80%
Asiana Airlines
$587 $785 No cancel fee 76%

We couldn't confirm the COVID-19 safety measures taken by Asiana Airlines. Please check directly on their website for additional information.

Korean Air
$616 $859 No cancel fee 81%
United Airlines
$624 $809 No cancel fee 69%
Hainan Airlines
$632 $879 No cancel fee 61%

We couldn't confirm the COVID-19 safety measures taken by Hainan Airlines. Please check directly on their website for additional information.

Delta
$632 $1,012 No cancel fee N/A
Japan Airlines
$641 $855 No cancel fee 79%

We couldn't confirm the COVID-19 safety measures taken by Japan Airlines. Please check directly on their website for additional information.

EVA Air
$653 $881 No cancel fee 74%
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