฿11,385 Cheap Flights from Seattle (SEA) to Bangkok (BKK)

View ฿11,385 flight on Sun, 26 Apr 2026Opens in a new window

Popular airlines from Seattle-Tacoma International Airport (SEA) to Suvarnabhumi International Airport (BKK)

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

Prices were available within the past 7 days and start at ฿11,385 for one-way flights and ฿21,125 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Sun, 21 Sept - Sat, 4 Oct
SEA
Seattle
BKK
Bangkok
฿21,125 Return, found 5 days ago
฿21,125
Return
found 5 days ago
Select Philippine Airlines flight, departing Sun, 21 Sept from Seattle to Bangkok, returning Sat, 4 Oct, priced at ฿21,125 found 5 days ago
Asiana Airlines
Sun, 30 Nov - Fri, 12 Dec
SEA
Seattle
BKK
Bangkok
฿22,065 Return, found 12 hours ago
฿22,065
Return
found 12 hours ago
Select Asiana Airlines flight, departing Sun, 30 Nov from Seattle to Bangkok, returning Fri, 12 Dec, priced at ฿22,065 found 12 hours ago
Delta
Thu, 11 Sept - Thu, 18 Sept
SEA
Seattle
BKK
Bangkok
฿22,565 Return, found 17 hours ago
฿22,565
Return
found 17 hours ago
Select Delta flight, departing Thu, 11 Sept from Seattle to Bangkok, returning Thu, 18 Sept, priced at ฿22,565 found 17 hours ago
Korean Air
Wed, 24 Sept - Mon, 27 Oct
SEA
Seattle
BKK
Bangkok
฿22,685 Return, found 2 days ago
฿22,685
Return
found 2 days ago
Select Korean Air flight, departing Wed, 24 Sept from Seattle to Bangkok, returning Mon, 27 Oct, priced at ฿22,685 found 2 days ago
United
Wed, 24 Sept - Mon, 27 Oct
SEA
Seattle
BKK
Bangkok
฿22,850 Return, found 2 days ago
฿22,850
Return
found 2 days ago
Select United flight, departing Wed, 24 Sept from Seattle to Bangkok, returning Mon, 27 Oct, priced at ฿22,850 found 2 days ago
All Nippon Airways
Wed, 24 Sept - Mon, 27 Oct
SEA
Seattle
BKK
Bangkok
฿23,785 Return, found 2 days ago
฿23,785
Return
found 2 days ago
Select All Nippon Airways flight, departing Wed, 24 Sept from Seattle to Bangkok, returning Mon, 27 Oct, priced at ฿23,785 found 2 days ago
STARLUX Airlines
Wed, 7 Jan - Wed, 21 Jan
SEA
Seattle
BKK
Bangkok
฿27,210 Return, just found
฿27,210
Return
just found
Select STARLUX Airlines flight, departing Wed, 7 Jan from Seattle to Bangkok, returning Wed, 21 Jan, priced at ฿27,210 just found
EVA Airways
Thu, 23 Oct - Mon, 27 Oct
SEA
Seattle
BKK
Bangkok
฿27,725 Return, found 10 hours ago
฿27,725
Return
found 10 hours ago
Select EVA Airways flight, departing Thu, 23 Oct from Seattle to Bangkok, returning Mon, 27 Oct, priced at ฿27,725 found 10 hours ago
Japan Airlines
Thu, 22 Jan - Wed, 28 Jan
SEA
Seattle
BKK
Bangkok
฿27,925 Return, found 6 days ago
฿27,925
Return
found 6 days ago
Select Japan Airlines flight, departing Thu, 22 Jan from Seattle to Bangkok, returning Wed, 28 Jan, priced at ฿27,925 found 6 days ago
China Airlines
Wed, 21 Jan - Thu, 5 Feb
SEA
Seattle
BKK
Bangkok
฿28,060 Return, found 13 hours ago
฿28,060
Return
found 13 hours ago
Select China Airlines flight, departing Wed, 21 Jan from Seattle to Bangkok, returning Thu, 5 Feb, priced at ฿28,060 found 13 hours ago

Find the cheapest month to fly from Seattle (SEA) to Bangkok (BKK)

March is typically the cheapest month to fly

From ฿20,791 - ฿28,615 per traveller.
Flight from Seattle to Bangkok route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, Asiana Airlines, Cathay Pacific, China Airlines, Condor, Delta, EVA Airways, Emirates, Japan Airlines, KLM, Korean Air, Lufthansa, Philippine Airlines, Qatar Airways, Thai Airways International, Turkish Airlines, United
Return price
฿21,125
Distance
11917 km

Perfect flights from Seattle to Bangkok

Embark on an unforgettable journey without breaking the bank with Expedia's incredible deals on cheap flights from Seattle to Bangkok. Whether you're aching for a romantic escape with your partner, craving an adventurous solo expedition, or yearning to immerse yourself in the local history and culture, we've got you covered.
 
Picture yourself strolling through the streets of , surrounded by breathtaking architecture and absorbing the vibrant atmosphere of this captivating city. Indulge in the mouth-watering local specialties, from tantalizing street food to exquisite fine dining. With Expedia, you can experience all of this and more, without sacrificing your budget.
 
Our flexible Seattle - Tacoma Intl. to Suvarnabhumi Intl. ticket options cater to your travel preferences, with incredible one-way fares from ฿11,385 and roundtrip prices from ฿21,125. Whether you're planning a short city break or a longer adventure, our dynamic pricing ensures that you find the best deals for your journey.
 
But the magic doesn't stop there. Expedia offers a range of partner services to enhance your trip. Rent a car at Suvarnabhumi Intl. and explore and its surrounding areas at your own pace. Discover hidden gems off the beaten path, and create unforgettable memories. We also provide a handpicked selection of accommodations, from charming bed and breakfasts to luxury hotels, ensuring that you have a comfortable and memorable stay.
 
Planning your next great adventure is a breeze with Expedia. Our user-friendly platform, unbeatable prices, and round-the-clock customer support are designed to make your travel experience seamless and stress-free. So, why wait? Book your to travel arrangements today and embark on the journey of a lifetime in Bangkok.

Frequently asked questions

How much is a flight from Seattle - Tacoma Intl. Airport (SEA) to BKK?
The lowest price advertised for a round-trip journey from Sea-Tac Airport to Suvarnabhumi Intl. Airport (BKK) is ฿21,125. But you better move fast. This price is taken from fares available within the last 7 days on Expedia for flights departing within the next year. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from SEA to Bangkok Airport?
We understand that things crop up unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just visit the Customer Service Portal and follow the instructions.
How do I find cheap flights from Seattle - Tacoma Intl. Airport (SEA) to BKK that have flexible change policies?
Many airlines offer the option to reschedule your flight without a change fee. All you pay is the difference between the original flight and the new flight. When you're searching for SEA to Suvarnabhumi Airport flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Sea-Tac Airport to Bangkok Airport?
With around 12,000 kilometres separating SeaTac and Bang Phli, your flight will be a long one. Pack wisely and make your trip more comfortable. Little things like warm clothes and a quality travel pillow can make all the difference.
Which airlines fly direct from Sea-Tac Airport to Suvarnabhumi Airport?
Currently, no airlines offer direct flights from Sea-Tac Airport to BKK. You'll have to book a flight with one or more stops. To get the best price and connections, lock in your airfare well ahead of time.
Are Seattle - Tacoma Intl. Airport (SEA) to Bangkok Airport flight tickets cheaper when they're purchased at the last minute?
Tickets from Sea-Tac Airport to BKK are available up to a year prior to departure on Expedia. And although you may occasionally score a great last-minute deal, it's not something you should bank on. Also, booking your flights ahead of time means you'll have more choices — and you can avoid getting stuck in the dreaded middle seat! We regularly update our fares to bring you the biggest bargains, so check back often for all the latest specials.

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