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

View AU$664 flight on Wed, 3 Dec. 2025Opens in a new window

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

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

Prices were available within the past 7 days for one-way flights and round trip tickets for the period specified. Prices and availability are subject to change. Additional terms apply.

Korean Air
Mon, 16 Mar. - Mon, 30 Mar.
BKK
Bangkok
SEA
Seattle
AU$1,002 Return, found 6 days ago
AU$1,002
Return
found 6 days ago
Select Korean Air flight, departing Mon, 16 Mar. from Bangkok to Seattle, returning Mon, 30 Mar., priced at AU$1,002 found 6 days ago
Philippine Airlines
Sun, 2 Nov. - Fri, 28 Nov.
BKK
Bangkok
SEA
Seattle
AU$1,062 Return, found 3 days ago
AU$1,062
Return
found 3 days ago
Select Philippine Airlines flight, departing Sun, 2 Nov. from Bangkok to Seattle, returning Fri, 28 Nov., priced at AU$1,062 found 3 days ago
Delta
Fri, 12 Sep. - Tue, 16 Sep.
BKK
Bangkok
SEA
Seattle
AU$1,263 Return, found 12 hours ago
AU$1,263
Return
found 12 hours ago
Select Delta flight, departing Fri, 12 Sep. from Bangkok to Seattle, returning Tue, 16 Sep., priced at AU$1,263 found 12 hours ago
Korean Air
Fri, 12 Sep. - Tue, 16 Sep.
BKK
Bangkok
SEA
Seattle
AU$1,269 Return, found 12 hours ago
AU$1,269
Return
found 12 hours ago
Select Korean Air flight, departing Fri, 12 Sep. from Bangkok to Seattle, returning Tue, 16 Sep., priced at AU$1,269 found 12 hours ago
EVA Airways
Fri, 1 May - Mon, 1 Jun.
BKK
Bangkok
SEA
Seattle
AU$1,343 Return, found 2 days ago
AU$1,343
Return
found 2 days ago
Select EVA Airways flight, departing Fri, 1 May from Bangkok to Seattle, returning Mon, 1 Jun., priced at AU$1,343 found 2 days ago
China Airlines
Sun, 2 Nov. - Fri, 28 Nov.
BKK
Bangkok
SEA
Seattle
AU$1,349 Return, found 3 days ago
AU$1,349
Return
found 3 days ago
Select China Airlines flight, departing Sun, 2 Nov. from Bangkok to Seattle, returning Fri, 28 Nov., priced at AU$1,349 found 3 days ago
Air Canada
Sun, 2 Nov. - Fri, 28 Nov.
BKK
Bangkok
SEA
Seattle
AU$1,467 Return, found 3 days ago
AU$1,467
Return
found 3 days ago
Select Air Canada flight, departing Sun, 2 Nov. from Bangkok to Seattle, returning Fri, 28 Nov., priced at AU$1,467 found 3 days ago
Asiana Airlines
Fri, 1 May - Mon, 1 Jun.
BKK
Bangkok
SEA
Seattle
AU$1,471 Return, found 2 days ago
AU$1,471
Return
found 2 days ago
Select Asiana Airlines flight, departing Fri, 1 May from Bangkok to Seattle, returning Mon, 1 Jun., priced at AU$1,471 found 2 days ago
United
Sun, 2 Nov. - Fri, 28 Nov.
BKK
Bangkok
SEA
Seattle
AU$1,496 Return, found 3 days ago
AU$1,496
Return
found 3 days ago
Select United flight, departing Sun, 2 Nov. from Bangkok to Seattle, returning Fri, 28 Nov., priced at AU$1,496 found 3 days ago
All Nippon Airways
Fri, 1 May - Mon, 1 Jun.
BKK
Bangkok
SEA
Seattle
AU$1,540 Return, found 2 days ago
AU$1,540
Return
found 2 days ago
Select All Nippon Airways flight, departing Fri, 1 May from Bangkok to Seattle, returning Mon, 1 Jun., priced at AU$1,540 found 2 days ago

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

May is typically the cheapest month to fly

From AU$888 - AU$1,428 per traveller.

Graph displaying average flight prices per month

Flight from Bangkok to Seattle route information
Origin airport
Suvarnabhumi Intl.
Destination airport
Seattle - Tacoma Intl.
Airlines serving
Air Canada, Air France, All Nippon Airways, American Airlines, Asiana Airlines, Cathay Pacific, China Airlines, Delta, EVA Airways, Emirates, Japan Airlines, KLM, Korean Air, Lufthansa, Qatar Airways, Thai Airways International, Turkish Airlines, United
Return price
AU$1,002
Distance
11917 km

Your quick guide to flights from Bangkok to Seattle

Pick up great flights from Bangkok to Seattle

With Expedia, you have your pick of flights a day with 20 airlines covering flights from Bangkok to Seattle. Whether you’re on a business trip, a family holiday or a luxury break, just enter your travel dates, hit search then check out your choice of flights. Select from return, one way or multi-city flights, and use the advance search tool if you want a direct or refundable flight. You can narrow your search to show you just your preferred cabin class and airline, too. It’s all easy. You can book direct flights from Bangkok to Seattle that take around hours.

Find cheap flights from Bangkok to Seattle

From the great flight deals with prices currently ranging from AU$1,002 to AU$1,540, you can choose to see the cheapest flights first. Generally, you can book the cheapest flights from Bangkok to Seattle around 4 to 6 weeks in advance. If your travel dates are flexible, try to avoid weekends and peak seasons – when you are more likely to grab the lowest prices. Even last minute, there are some impressive deals. The cheapest time to fly to Seattle is normally in March.

Reasons to book your flight from Bangkok to Seattle with Expedia

Expedia makes it easy to find, book, and travel, with everything you need all in one place. When you enter your travel details, find fantastic deals just for you on flight tickets from Bangkok to Seattle across all the main airline carriers, so you can save time, dollars, and hassle finding the perfect flight. If you think your plans could change, choose refundable flights so any changes won’t cost you more. Book your flight to Seattle right now and, if you join Expedia Rewards, you earn points this time and every time you travel with Expedia.

Frequently asked questions

How much is a flight from Bangkok Airport to Seattle - Tacoma Intl. Airport (SEA)?
Within the past 7 days on Expedia, for flights departing within the next year, the lowest price quoted for a round-trip flight between Suvarnabhumi Airport and Sea-Tac Airport was AU$1,002. Cheap tickets don't hang around, so make sure you book yours ASAP. Prices and availability are subject to change. Additional terms apply.
Do I need to pay a cancellation fee if I cancel my flight from BKK to SEA?
We get that your situation can change unexpectedly, so we've made it as easy as possible for you to cancel your trip online. Just head to the Customer Service Portal and follow the instructions.
How do I find cheap flights from Suvarnabhumi Airport to SEA 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 Bangkok Airport to Seattle - Tacoma Intl. Airport (SEA) flights, you'll see a "no change fees" filter for you to select.
How far is the flight from Suvarnabhumi Intl. Airport (BKK) to SEA?
You'll have 12 000 kilometres to cover on the long-haul Bang Phli to SeaTac route. Dress in comfy clothes and consider taking a sleep mask and earplugs.
Which airlines fly direct from BKK to SEA?
Direct flights aren't available, so you'll need to make at least one stop between Suvarnabhumi Intl. Airport (BKK) and Seattle - Tacoma Intl. Airport (SEA). Use the layover time to stretch your legs and freshen up.
Are Suvarnabhumi Airport to Seattle - Tacoma Intl. Airport (SEA) flight tickets cheaper when they're purchased at the last minute?
Flight prices change all the time, so it's no sure thing. While last-minute deals between Suvarnabhumi Intl. Airport (BKK) and Sea-Tac Airport are possible, it also makes sense to keep track of prices well before you fly. In fact, some air carriers announce their prices up to 12 months before the departure date. Expedia is constantly updating the best airfare bargains around, so keep checking and be ready to book when prices drop.

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