Cheap flights from Seattle (SEA) to Bangkok (BKK)

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The best prices from Seattle to Bangkok are usually found in May or April, booked 45 days in advance, depart on a Tuesday or Monday and return on a Monday

How to find the cheapest flight from
Seattle (SEA) to Bangkok (BKK)

SEA - TH1
Price
$655 - $1,231
TH1
Temperature
89.6 - 96.8 °F
TH1
Rainfall
0.4 - 12.1 inches

Popular in

December

High demand for flights, 38% potential price rise

Cheapest in

May

Best time to find cheap flights, 14% potential price drop

Round-trip from

$655

From Seattle to Bangkok

One-way from

$527

One-way flight from Seattle to Bangkok

Flight route prices based on searches on Cheapflights within the last 3 days, monthly prices based on aggregated historical data.
What is the cheapest day to fly round-trip from Seattle to Bangkok?

Flying to your destination on a Friday can be more expensive, but this shouldn’t discourage you from finding affordable options to get to Bangkok. Check prices with Cheapflights to find a great deal for your trip.

How far in advance should I book a flight from Seattle to Bangkok?

Find a great deal and save up to 9% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Bangkok within the next two weeks, with the cheapest ticket starting at $800.

What is the cheapest month to fly from Seattle to Bangkok?

Due to multiple factors, expect to potentially pay more when booking in June. For low rates, April can be a great choice for travel to Bangkok. Flights to Bangkok from Seattle in April are about $828 on average during April, but can be found for as low as $570.

When is the cheapest time to fly from Seattle to Bangkok (SEA - TH1)?

One of the essential ways to save on airfare from Seattle to Bangkok is to remain as flexible as possible. Flights that are in the afternoon tend to be the most expensive. A flight in the morning could potentially save you up to 17% on airfare.

Cheap flights from Seattle to Bangkok in February, March 2021

30 Mar - 6 Apr
$686pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
30 Mar - 6 Apr
$689pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
27 Mar - 3 Apr
$711pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Seattle to Bangkok 2021 flight deals

26 Oct - 24 Nov
$666pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
19 Sep - 10 Oct
$678pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
19 Sep - 10 Oct
$680pp
SEA
Seattle/Tacoma Intl
Japan Airlines
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

Last minute flights from Seattle to Bangkok

8 Mar - 22 Apr
$779pp
SEA
Seattle/Tacoma Intl
Qatar Airways
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Qatar Airways
 
1 STOP
SEA
Seattle/Tacoma Intl
6 Mar - 13 Mar
$780pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
6 Mar - 13 Mar
$782pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Bangkok from Seattle

9:30 pm - 9:05 am
EVA Air
1 Stop
21h 35m
SEA - BKK
EVA Air
3:30 am - 7:55 pm
United Airlines
2 Stops
26h 25m
SEA - BKK
United Airlines
$548
Travelgenio
10:00 am - 7:00 pm
American Airlines
2 Stops
43h 00m
SEA - BKK
American Airlines

Related info for your journey

Flight FAQs

From Seattle to Bangkok

Are flight prices decreasing from Seattle to Bangkok due to COVID-19 (coronavirus)?

At this time, Cheapflights has noticed price decreases for many domestic flights due to COVID-19. Travel is not necessarily recommended at this time, and flights may be prone to cancellation: please check with local authorities in both Seattle and Bangkok for travel alerts, and be sure to review the airline's cancellation policy and travel advisories before booking. For more information, please view our post on what to know about COVID-19 (coronavirus) and travel.

What safety measures are being taken by airlines flying from Seattle/Tacoma Intl to Bangkok to control the spread of COVID-19?

New policies can now be found on Delta to help keep travelers safe while flying. Some of the new policies that have been implemented to accommodate travelers flying from Seattle/Tacoma Intl to Bangkok are improved sanitation, HEPA filters, mask requirements, social distance seating (for a limited time), and pre-flight testing for antibodies and symptoms. Policies will vary by airline.

Which airlines flying from Seattle/Tacoma Intl to Bangkok have flexible cancellations due to COVID-19?

Some of our airline partners flying from Seattle/Tacoma Intl 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 Seattle to Bangkok for under $700 on Cheapflights?

Yes, there are multiple flights from Seattle to Bangkok for under $700. The cheapest flight booked recently is on Multiple Airlines for just $683, but on average you can expect to pay $695.

Are there nonstop flights from Seattle to Bangkok for under $700 on Cheapflights?

There are no nonstop flights from Seattle to Bangkok, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.

Are there last-minute flights available from Seattle to Bangkok for under $800?

There are currently 20+ open flights from Seattle to Bangkok within the next 7 days for less than $800.

Is Seattle weather warmer or cooler than Bangkok?

With an average temperature of 97 °F, peak weather can be found in April. As a traveler, expect to see changes in flight prices during that period. The temperatures in Bangkok are hotter than in Seattle.

How long is the flight from Seattle to Bangkok?

Japan Airlines, American Airlines, and Singapore Airlines can get you from Seattle to Bangkok in just under 19h 30m. Your travel time can differ by up to 10m. This flight may include one or multiple stops.

What are the cheapest airlines flying from Seattle to Bangkok round-trip?

Japan Airlines, at $686, was found to be the cheapest airline from Seattle to Bangkok.Alternate airlines to your destination round-trip include Singapore Airlines and American Airlines. Japan Airlines is priced at 9% lower than the current average price of a flight leaving 3 months from now.

What are the cheapest airlines to fly from Seattle to Bangkok one-way?

The cheapest airline one-way is Singapore Airlines, with whom users have recently found tickets for as low as $458. However, be on the lookout for offers from EVA Air and Japan Airlines, as they are both options that can get you from Seattle to Bangkok for a low price.

Destination information for Bangkok

Today's exchange rate
$1 = ฿30.32
Average temperature for February in Bangkok
91.4 °F
Avg rainfall for February in Bangkok
1.1 ″

Airports servicing Seattle

Airports servicing Bangkok

Don Mueang International (DMK)

Top 10 airlines flying from Seattle to Bangkok

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%
United Airlines
$624 $772 No cancel fee 69%
ANA
$587 $807 No cancel fee 80%
Japan Airlines
$641 $838 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.

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.

China Eastern
$655 $888 No cancel fee 62%

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

American Airlines
$663 $908 No cancel fee 71%
Cathay Pacific
$655 $972 No cancel fee 72%
Delta
$632 $977 No cancel fee N/A
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