January is by far the best month, wherein you can get cheapest flights for Seattle to Bangkok. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the above-mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.

Seattle
12:30
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
23:35
Bangkok
Suvarnabhumi Airport
Tue, 20 Jan 2026

Seattle
05:50
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
22:30
Bangkok
Suvarnabhumi Airport
Tue, 20 Jan 2026

Seattle
20:00
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
06:30
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
15:57
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
14:35
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
14:10
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
07:30
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
14:10
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
07:10
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
08:23
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
13:15
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
09:52
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
06:05
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
15:45
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
08:25
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
18:50
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
16:05
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026

Seattle
18:50
Seattle
Seattle Tacoma International Airport
Mon , 19 Jan 2026

Bangkok
16:00
Bangkok
Suvarnabhumi Airport
Wed, 21 Jan 2026










Flying from Seattle to Bangkok has never been easier. Whether you’re planning a short business trip, a weekend getaway, or reconnecting with family and friends, Easemytrip brings you the best deals, seamless booking, and flexible options for this popular flight route. Our platform is built to help travellers like you compare flight prices, explore direct and connecting options, and find the perfect departure time — all within a few clicks.
The air route between Seattle to Bangkok is one of the most frequently travelled, offering reliable services from top airlines and excellent connectivity between Seattle Tacoma International Airport (SEA) and Suvarnabhumi Airport (BKK). You can expect a flight distance of approximately 11987 km, and most direct services cover it in around 18:29.
Let’s take a closer look at everything you need to know before booking your flight from Seattle to Bangkok.
| Flight Details | Information |
|---|---|
| Route Distance | 11987 km |
| Average Flight Time | 18:29 hrs |
| Departure Airport | Seattle Tacoma International Airport (SEA) |
| Arrival Airport | Suvarnabhumi Airport (BKK) |
| Cabin Classes Available | Economy Class, Premium Economy, Business Class, First Class |
| Direct Flights | NO |
| Common Airlines | American Airlines, Air Canada, Alaska Airlines, Air France |
The route is serviced regularly by both full-service and budget airlines, catering to all types of travellers — from those looking for no-frills budget options to those preferring business and first-class comfort. If you're flying for business, early morning weekday flights are a great choice, while leisure travellers often opt for weekend and evening departures.