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Cheap Flights from Bangkok to Seattle / Tacoma International

Compare Bangkok to Seattle / Tacoma International flight deals

Find the cheapest month or even day of the year to fly to Seattle / Tacoma International

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Flight deals from Bangkok to Seattle / Tacoma International

Looking for a cheap last-minute deal or the best return flight from Bangkok to Seattle / Tacoma International Airport? If you want to travel next month, return fares start from R 12,933. Find the lowest prices on one-way and return tickets right here.
Seattle.R 7,326 per passenger.Departing Sat, 12 Dec.One-way flight with Thai LionAir.Outbound indirect flight with Thai LionAir, departs from Don Mueang on Sat, 12 Dec, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,326, select.
Seattle.R 7,392 per passenger.Departing Sun, 20 Sep.One-way flight with HK Express.Outbound indirect flight with HK Express, departs from Bangkok Suvarnabhumi on Sun, 20 Sep, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,392, select.
Seattle.R 7,820 per passenger.Departing Mon, 16 Nov.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Mon, 16 Nov, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,820, select.
Seattle.R 7,835 per passenger.Departing Sun, 24 Jan.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 24 Jan, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,835, select.
Seattle.R 7,841 per passenger.Departing Sun, 18 Oct.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 18 Oct, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,841, select.
Seattle.R 7,933 per passenger.Departing Thu, 27 Aug.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Thu, 27 Aug, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 7,933, select.
Seattle.R 8,210 per passenger.Departing Mon, 10 May.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Bangkok Suvarnabhumi on Mon, 10 May, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,210, select.
Seattle.R 8,216 per passenger.Departing Mon, 22 Mar.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Bangkok Suvarnabhumi on Mon, 22 Mar, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,216, select.
Seattle.R 8,221 per passenger.Departing Mon, 15 Feb.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Bangkok Suvarnabhumi on Mon, 15 Feb, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,221, select.
Seattle.R 8,231 per passenger.Departing Fri, 2 Apr.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Bangkok Suvarnabhumi on Fri, 2 Apr, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 8,231, select.
Seattle.R 9,062 per passenger.Departing Sun, 6 Jun.One-way flight with China Airlines.Outbound indirect flight with China Airlines, departs from Bangkok Suvarnabhumi on Sun, 6 Jun, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 9,062, select.
Seattle.R 9,899 per passenger.Departing Sat, 25 Jul.One-way flight with STARLUX Airlines.Outbound indirect flight with STARLUX Airlines, departs from Bangkok Suvarnabhumi on Sat, 25 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 9,899, select.
Seattle.R 12,789 per passenger.Departing Mon, 5 Jul.One-way flight with Air Canada.Outbound indirect flight with Air Canada, departs from Bangkok Suvarnabhumi on Mon, 5 Jul, arriving in Seattle / Tacoma International.Price includes taxes and charges.From R 12,789, select.

Find the cheapest month to fly from Bangkok to Seattle / Tacoma International

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Bangkok to Seattle / Tacoma International flights are currently cheapest in December.
Jul
from R 9,899
Aug
from R 7,933
Sep
from R 7,392
Oct
from R 7,841
Nov
from R 7,820
Dec
from R 7,326
Jan
from R 7,835
Feb
from R 8,221
Mar
from R 8,216
Apr
from R 8,231
May
from R 8,210
Jun
from R 9,062

Bangkok to Seattle / Tacoma International: Alternative routes

Compare routes from Bangkok to Seattle below. You may find an airport to fly into that's cheaper, faster, or easier than Seattle / Tacoma International.

Seattle Lake Union SPB

2km from central Seattle
Closest
from R 10,226
Search flights

Seattle Boeing Fld

11km from central Seattle
from R 12,220
Search flights

Seattle / Tacoma International

20km from central Seattle
Cheapest
from R 7,326
Search flights

Paine Field

33km from central Seattle
from R 10,381
Search flights

Bangkok to Seattle: Flight information

The things to know before you go.
Cheapest flight foundR 7,326
Cheapest month to flyDecember

Finding cheap flights from Bangkok to Seattle / Tacoma International: Frequently asked questions

The best price we found for a return flight from Bangkok to Seattle / Tacoma International is R 12,646. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
Currently, there are no airlines that fly direct from Bangkok to Seattle / Tacoma International. But we found flights with one stop from R 12,646.
As of July 2026, there are no flights flying from Bangkok to Seattle / Tacoma International.
The cheapest month to fly from Bangkok to Seattle / Tacoma International is usually September.
After crunching the numbers on our flight calendar, we found that it is currently cheapest to fly from Bangkok to Seattle / Tacoma International Airport on Friday, 11 September 2026.
No airlines currently offer direct flights between Bangkok and Seattle / Tacoma International Airport. Most routes have one or more stops.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to Seattle / Tacoma International but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.

We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to Seattle is around 40 days in advance, so don’t leave your flight to the last minute.

The cheapest airline that flies to Seattle / Tacoma International is Korean Air .

Travelling from Bangkok to Seattle-Tacoma International Airport (SEA): What you need to know

  • Seattle is 15 hours behind Bangkok. Seattle-Tacoma International Airport is located in Seattle, which operates on the UTC-8 timezone.

  • Get to the airport on time so you don't miss your flight from Bangkok to SEA. Be there at least two hours ahead for international flights and an hour early for domestic departures to skip the mad dash to your gate.

  • Flying during a peak time like February? Major public holidays and other popular seasons can mean longer queues and delays at check-in and security. Play things extra safe and get there up to four hours before international flights and two hours before a domestic departure.

Airports in Bangkok

Bangkok Suvarnabhumi International Airport (BKK)

  • A stopover is the ideal opportunity to break up your trip and maybe even explore another city. When searching for cheap flights from Bangkok to SEA departing from Bangkok Suvarnabhumi International Airport (BKK), uncheck the 'Direct flights only' box to get ideas for where to visit along the way. Popular options include:

    • Vancouver International Airport (YVR)

    • Taiwan Taoyuan International Airport (TPE)

    • Tokyo Narita International Airport (NRT)

  • Travelling from central Bangkok to BKK takes about 35 minutes on public transport. If you ride-share, drive or take a taxi, you'll cover the 31 kilometres in 35 minutes or so, depending on traffic conditions.

  • Searching for a comfortable hotel close to Bangkok Suvarnabhumi International Airport? If you've booked an early flight from Bangkok to Seattle-Tacoma International Airport, these stays will put you just around the corner from the terminal:

  • When it comes to Bangkok Suvarnabhumi International Airport's on-time performance, data shows 73% of flights arrive within the scheduled time frame.

Bangkok Don Mueang International Airport (DMK)

  • Split up your flight from Bangkok to Seattle-Tacoma International Airport with a stop so you can stretch your legs or perhaps go somewhere you've never been before. Some popular stopovers between Bangkok Don Mueang International Airport and SEA include:

    • Shanghai Pudong International Airport (PVG)

    • Manila Ninoy Aquino International Airport (MNL)

    • Taiwan Taoyuan International Airport (TPE)

  • With public transport, you can travel from central Bangkok to DMK in around 1 hour 5 minutes. The terminal is roughly 24 kilometres away, and making the journey by car takes approximately 35 minutes.

  • Got an early start? You might like to check in to one of these hotels near Bangkok Don Mueang International Airport the day before your Bangkok to SEA flight:

  • 60% of all departures from Bangkok Don Mueang International Airport stick to their scheduled arrival time.

About Seattle-Tacoma International Airport (SEA)

Getting from Seattle-Tacoma International Airport (SEA) to central Seattle

  • From Seattle-Tacoma International Airport, central Seattle is around 23 kilometres away. It takes about 25 minutes to reach the city centre by car.

  • If you're using public transport, expect a journey time of around 35 minutes.

How to find the cheapest flights from Bangkok to Seattle-Tacoma International Airport (SEA)

  • At the moment, R 7,326 is the lowest price we've found for a one-way ticket from Bangkok to Seattle-Tacoma International Airport. The cheapest price for a return flight is R 12,646. Remember fares may change due to demand at the time of booking.

  • Booking ahead of time is often the key to finding a cheap flight from Bangkok to SEA. Airlines adjust prices based on demand, so the closer your departure date, the more you'll likely pay.

  • The 'Whole month' search tool will show you the cheapest Bangkok to Seattle-Tacoma International Airport tickets throughout the entire month. It's a great way to snap up a bargain if your plans are flexible.

  • Save time searching for cheap plane tickets from Bangkok to SEA by setting up a Price Alert. We'll send you an email or notification through the app when prices go down.

  • Uncover a great deal on a flight from Bangkok to Seattle-Tacoma International Airport with the help of the filters. Choose your preferred arrival and departure times, airlines and number of stops. You can also sort your results by 'Fastest,' 'Best' or 'Cheapest.'

The best time to fly from Bangkok to Seattle-Tacoma International Airport (SEA)

  • Think about the kind of experience you want when deciding your trip dates. December is the quietest month to go to Seattle. July is when most people book flights from Bangkok to Seattle-Tacoma International Airport (SEA), which may be perfect if you'd rather travel when it's busy.

  • Lock in a Bangkok to SEA plane ticket departing in August if you're eager to visit the city during its warmest month. You can expect temperatures in Seattle to range from 12ºC (54ºF) to 28ºC (82ºF).

  • If you like cooler conditions, look for a cheap ticket from Bangkok to Seattle-Tacoma International Airport in February when temperatures are between -1ºC (30ºF) and 11ºC (52ºF).

More about Seattle

  • Start your Seattle trip off on the right foot by choosing the ideal place to stay. After booking your flight from Bangkok to Seattle-Tacoma International Airport, explore our selection of hotels including:

  • You'll find plenty of fantastic things to do in Seattle when you're in the mood to sightsee. Kick things off at Space Needle followed by Pike Place Market and Seattle Skyline.

Explore more of the United States

  • Seattle has plenty to offer, but there are so many other parts of the United States waiting to be discovered. About 209 kilometres south of Seattle, a trip to Portland will keep you on the move. Start with popular sights like Portland Japanese Garden, Peninsula Park Rose Garden and Beyond Van Gogh Portland.

  • Around 209 kilometres south of Seattle, Vancouver is another favourite stop in the United States. Get a taste of what this destination has to offer at Reconstructed HBC Fort Vancouver, The Marshall House: Victorian Jewel of Officers Row and Clark County Historical Museum.

More travel options

Prices shown on this page are estimated lowest prices only. Found in the last 12 days.