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 Wednesday

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

All the information you need to plan the best SEA to BKK flight in 2021: compare Seattle to Bangkok flight prices with the expected peak season, weather and rainfall in Bangkok.
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

$531

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 evening tend to be the most expensive. A flight in the morning could potentially save you up to 11% on airfare.

Cheap flights from Seattle to Bangkok in June, July 2021

The best prices found for SEA to BKK flights for June, July
21 Jul - 28 Jul
$849pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
20 Jul - 3 Aug
$860pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
20 Jul - 2 Aug
$862pp
SEA
Seattle/Tacoma Intl
Japan Airlines
   
2 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Japan Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl

Seattle to Bangkok 2021 flight deals

Cheap flights to Bangkok from Seattle found for this year
1 Nov - 8 Nov
$633pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
1 Nov - 22 Nov
$653pp
SEA
Seattle/Tacoma Intl
Singapore Airlines
 
1 STOP
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
 
1 STOP
SEA
Seattle/Tacoma Intl
1 Nov - 28 Nov
$654pp
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 Seattle to Bangkok

Late deals on round-trip flights to Bangkok from Seattle, departing today and this week
18 Jun - 20 Jun
$879pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl
18 Jun - 20 Jun
$966pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Singapore Airlines
   
2 STOPS
SEA
Seattle/Tacoma Intl
18 Jun - 20 Jun
$1,170pp
SEA
Seattle/Tacoma Intl
Multiple Airlines
     
3 STOPS
BKK
Bangkok Suvarnabhumi
BKK
Bangkok Suvarnabhumi
Multiple Airlines
     
3 STOPS
SEA
Seattle/Tacoma Intl

One-way flights to Bangkok from Seattle

The cheapest one-way flights from Seattle to Bangkok
5:50 am - 11:40 am
Japan Airlines
2 Stops
39h 50m
SEA - BKK
Japan Airlines
$531
FlightHub
2:00 pm - 7:00 pm
American Airlines
2 Stops
39h 00m
SEA - BKK
American Airlines
6:30 am - 7:20 pm
Air Canada
2 Stops
22h 50m
SEA - BKK
Air Canada
$557
JustFly

Related info for your journey

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

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.

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.

What airport do you fly from for flights from Seattle to Bangkok?

Seattle/Tacoma Intl (SEA), located 11.4 mi from the city center, is the airport you fly out of when you book flights from Seattle to Bangkok. 16 airlines have flights from Seattle/Tacoma Intl to Bangkok on a regular basis. Booking flights from Seattle/Tacoma Intl to Bangkok should not be difficult; the airport handles an average of 0 outbound flights to Bangkok per day.

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 Singapore Airlines for just $633, but on average you can expect to pay $691.

Are there nonstop flights from Seattle to Bangkok for under $600 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 $900?

There are currently 18+ open flights from Seattle to Bangkok within the next 7 days for less than $900.

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?

Singapore Airlines can get you from Seattle to Bangkok in just under 20h. Your travel time can differ by up to .

What is the cheapest airline to fly from Seattle to Bangkok round-trip?

Singapore Airlines, at $633, was found to be the cheapest airline from Seattle to Bangkok.. Singapore Airlines is priced at 16% 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 $427. However, be on the lookout for offers from Japan Airlines and American Airlines, as they are both options that can get you from Seattle to Bangkok for a low price.

Destination information for Bangkok

Things to know before you go - useful duration and weather info for your trip from Seattle to Bangkok.
Today's exchange rate
$1 = ฿31.04
Average temperature for June in Bangkok
93.2 °F
Avg rainfall for June in Bangkok
5.9 ″

Airports servicing Seattle

Airports servicing Bangkok

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

Top 10 airlines flying from Seattle to Bangkok

The chart below displays the airlines Cheapflights users traveling from Seattle 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%
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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