$765 Cheap Thai Airways International flights from Seattle to Bangkok (SEA to BKK)

Find The Best Day To Fly from Seattle to Bangkok

Amazing Thai Airways International SEA to BKK Flight Deals

The cheapest flights to Suvarnabhumi Intl. found within the past 7 days were $1,306 round trip and $765 one way. Prices and availability subject to change. Additional terms may apply.

Thu, Nov 6 - Sun, Nov 16
SEA
Seattle
BKK
Bangkok
$1,306 Roundtrip, just found
$1,306
Roundtrip
just found
Select Thai Airways International flight, departing Thu, Nov 6 from Seattle to Bangkok, returning Sun, Nov 16, priced at $1,306 just found

BKK From SEA Economy Coach Packages on Similar Airlines

Price found within the past 48 hours. Click for updated prices.
Divalux Resort & Spa Bangkok, Suvarnabhumi Airport

Divalux Resort & Spa Bangkok, Suvarnabhumi Airport

5 out of 5
Price was $1,241, price is now $811 per person
$811
per person
Jan 18 - Jan 24
found 1 day ago
Roundtrip non-stop flight included
Seattle (SEA) to Bangkok (BKK)
Centre Point Sukhumvit 10

Centre Point Sukhumvit 10

4 out of 5
Price was $1,611, price is now $884 per person
$884
per person
Jan 18 - Jan 24
found 1 day ago
Roundtrip non-stop flight included
Seattle (SEA) to Bangkok (BKK)
Al Meroz Bangkok

Al Meroz Bangkok

5 out of 5
Price was $1,727, price is now $1,057 per person
$1,057
per person
Dec 7 - Dec 13
found 19 hours ago
Roundtrip non-stop flight included
Seattle (SEA) to Bangkok (BKK)
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Frequently asked questions

Can I catch a flight from Sea-Tac Airport to Suvarnabhumi Intl. Airport (BKK) right now?
Be sure to check out the Covid-19 Travel Advisor to discover if there are any present quarantine requirements or travel advice reports in effect in BKK when jet-setting from SEA.
If I am not able to travel due to COVID-19, can I change my booking to a later date?
For more info about changing your flight to BKK, please visit our Customer Service Portal.
What is the best day to buy a plane ticket?
This just in! Airfares offered on Thursdays tend to be the cheapest, according to flight demand on Travelocity in 2021. Tuesday and Wednesday prices are also good, but you may want to prepare your budget if booking during the weekend, as data shows that is when prices are generally at their highest.
What are the cheapest days to fly?
Frequent travelers may already know this, but earlier in the week can be the cheapest time to fly. In 2021, flights departing on a Monday were generally the cheapest of the week, whereas you may pay a premium for weekend flights when demand is usually high. On average, tickets were most expensive for Saturday departures, so if you need to fly out on a weekend, you might look for deals ahead of time.
How far in advance can you book a flight?
Trying to figure out how early you should book your flight? It's possible to start comparing international airfares on Travelocity up to 12 months in advance. However, it does depend on the carrier as not all airlines release their prices that far out. According to our 2021 flight demand trends, last minute planners can still bag a bargain with some of the cheapest fares appearing 0-2 weeks prior to their travel dates.*According to flight demand on Travelocity.com from January to December 2021. Savings are subject to change based on departure location, date and destination.

Discover our best Thai Airways International flight from Seattle SEA to Bangkok BKK 

To find the best deals on flights to Seattle from Bangkok with Thai Airways International, just enter your travel dates, filter by Thai Airways International, and hit search. You’ll find flights to choose from and can sort by price, flight duration, and arrival or departure time.  

 

Return flights from Seattle SEA to Bangkok BKK with Thai Airways International 

If you’re planning a round trip, booking return flights with Thai Airways International is usually the most cost-effective option. With airfares ranging from $1,306 to $1,306, it’s easy to find a flight that suits your budget. Prices and availability subject to change. Additional terms may apply. 

 

Book one-way Thai Airways International flights from Seattle SEA to Bangkok BKK 

A one-way ticket gives you much greater flexibility—allowing you to choose your return date, destination, and time whenever you’re ready. By booking in advance you can find great deals on one-way tickets too. Right now, a one-way Thai Airways International flight from Seattle to Bangkok costs from $765. Prices and availability subject to change. Additional terms may apply. 

 

The easy way to find cheap flights to Bangkok BKK from  Seattle SEA with Thai Airways International 

To find a cheap Thai Airways International flight from Seattle SEA to Bangkok BKK, sort your search results by price or filter by budget. Thanks to Travelocity’s Price Match Promise, if you find a better airfare deal anywhere else within 24 hours, we’ll credit or refund the difference. 

 

How to find our best airfare deals on Thai Airways International flights from Seattle SEA to Bangkok BKK 

If you’re looking for cheap flights, it helps to be flexible when it comes to your travel dates. You’ll usually find lower cost tickets when you travel during quieter months such as November, or if you book a flight with a stopover. 

 

Find nonstop flights from Seattle SEA to Bangkok BKK with Thai Airways International 

If you’re keen to be on Bangkok soil fast, don’t waste time with a stopover—filter your search results to show direct Thai Airways International flights only. The journey takes around hour(s) min(s) – so you’ll be there before you know it. 

 

Flexible airline tickets for Thai Airways International flights from Seattle SEA to Bangkok BKK 

Make sure you’re not out of pocket if plans change by choosing a flexible ticket with penalty-free amendment and cancellation options. Use our ‘no change fee’ filter to see which flights have this option.  

 

There are a lot of reasons to book your flights to Bangkok BKK from  Seattle SEA with Thai Airways International on Travelocity 

At Travelocity our vast and up-to-the-minute inventory puts all of our best flight deals in one place. So, whether you’re traveling on business or jetting off with friends and family, you can trust Travelocity to get you there.

Thai Airways International Airports
Hop on a(n) Thai Airways International flight today by flying to many destinations out of these domestic and international airports:
Airport code
Country
Airport name
Number of flights
HNDJPNHaneda10
BKKTHASuvarnabhumi Intl.4
FUKJPNFukuoka3
NRTJPNNarita Intl.3
NGOJPNChubu Centrair Intl.3
LAXUSALos Angeles Intl.3
TPETWNTaoyuan Intl.3
ICNKORIncheon Intl.3
KIXJPNKansai Intl.2
CPHDNKKastrup2

Travelers ❤️ these 🏨 after their flight to Bangkok

Divalux Resort & Spa Bangkok, Suvarnabhumi Airport

Divalux Resort & Spa Bangkok, Suvarnabhumi Airport

5 out of 5
88 Moo 3, Sisa Chorakhe Noi, Lat Krabang, Bang Sao Thong, Samut Prakan
A full-service spa, 2 restaurants, and an outdoor pool are all featured at this luxury hotel. Enjoy the gym and perks like free self parking and a free airport ...
8.4/10 Very Good! (1,127 reviews)
N/ A

Reviewed on Oct 25, 2025

Divalux Resort & Spa Bangkok, Suvarnabhumi Airport
Grande Centre Point Sukhumvit 55

Grande Centre Point Sukhumvit 55

5 out of 5
300 Sukhumvit Soi 55 (Thonglor), Klongton Nua, Wattana, Bangkok
This luxury hotel features a full-service spa, hot springs, and a restaurant. Traveling on business? Take advantage of the business center, free WiFi in public ...
9.4/10 Exceptional! (1,296 reviews)
This hotel is very well designed and it is easy to navigate. The staff were friendly & efficient and there was an excellent choice of culinary fayre. I recommend this hotel based on the aforementioned, alongside the spa and leisure facilities. NB. they don't sell alcohol.

Reviewed on Oct 20, 2025

Grande Centre Point Sukhumvit 55
Valia Hotel Bangkok Sukhumvit

Valia Hotel Bangkok Sukhumvit

5 out of 5
Sukhumvit 24, 95,370, Bangkok, Bangkok Province
This hotel features an outdoor pool, a gym, and a restaurant. Family-friendly amenities include a children's pool and babysitting. Unwind with a drink at the ...
9/10 Wonderful! (901 reviews)
Nice hotel with great breakfast. But would like to use this space to warn travelers about purchasing Expedia trip protection. It’s only applicable in extreme circumstances and common reasons cancellations are not covered and you will lose your money, as I did. The insurance is provided by AIG and ...

Reviewed on Oct 20, 2025

Valia Hotel Bangkok Sukhumvit
Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply.

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*Price based on the lowest price found within past 24 hours and based upon one night stay for two adults over the next thirty days. Prices and availability subject to change. Additional terms may apply.