£417 Cheap Flights from Seattle (SEA) to Bangkok (BKK)

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

Prices were available within the past 7 days and start at £417 for one-way flights and £617 for round trip, for the period specified. Prices and availability are subject to change. Additional terms apply.

Philippine Airlines
Asiana Airlines
China Airlines
EVA Airways
Delta
Korean Air
United
Turkish Airlines
Japan Airlines
All Nippon Airways
Flight from Seattle to Bangkok route information
Origin airport
Seattle - Tacoma Intl.
Destination airport
Suvarnabhumi Intl.
Airlines serving
Asiana Airlines, Qatar Airways, Thai Airways International, Turkish Airlines
Return price
£617
Distance
11917 km

Compare flights from Seattle to Bangkok easily and book with confidence

For travelling on business or for pleasure, Expedia makes it easy to book your flights from Seattle to Bangkok. Operating between them flights per day, 20 airlines cover the route. And fly direct, getting you to Suvarnabhumi Intl. in just hours. If you have a preferred carrier, use our advanced search tool to find the right flight from Seattle - Tacoma Intl. to Suvarnabhumi Intl..  

To make things even better, in the advanced search, you can also choose to fly economy, premium economy, business or first class, select your maximum number of stops, and pick your preferred departure and arrival time. You can also opt for refundable and direct flights. 

Grab a great deal on your flight from Seattle - Tacoma Intl. (SEA) to Suvarnabhumi Intl. (BKK) 

The easiest way to view the best deals on flights from Seattle to Bangkok today is to enter your travel dates and hit search. From here, you can sort your results by price to see the cheapest flights first. Right now, return flights from Seattle - Tacoma Intl. to Suvarnabhumi Intl. start at just £617 and range up to £761.  

To find an even better deal, try  

  • being flexible on your dates – midweek flights can be cheaper
  • looking for other airports near Seattle and Bangkok
  • booking your flight during October, the cheapest month on this route
  • varying your flight times – early morning and late at night are sometimes cheaper 

Why you should book your Seattle to Bangkok flight with Expedia!

We cater for all flight types, cabin classes and airlines. So whether you’re booking flights from Seattle - Tacoma Intl. to Suvarnabhumi Intl. for a budget break or a business trip with a bit of pleasure thrown in, we make it easy to secure the seat that’s right for you.  

Thanks to our supersized inventory that offers great choice all in one place, you know you’ll get a great deal with Expedia. Especially if you bundle your flight together with your hotel, you will unlock amazing savings. For added peace of mind, you can choose flexible bookings or filter to find refundable options, so you won’t pay a fee to change your flight.  

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 £617. 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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