Skyline view of Bangkok highlighting traditional Thai architecture amidst modern buildings. — flights from Seattle to Bangkok
SeattleBangkok, Thailand

Flights from Seattle to Bangkok

Flying time from Seattle (SEA) to Bangkok (BKK) is about 15h 29m (11,988 km). Lowest fare seen: $919 one-way, 1 stop (12 Oct 2026).

All flights from Seattle →All flights to Bangkok →

Photo of Bangkok: Zaonar Saizainalin on Pexels.

When you land in Bangkok

The airport transfer and the few things worth sorting before you fly.

Skyline view of Bangkok highlighting traditional Thai architecture amidst modern buildings. — arriving in Bangkok

Airport transfer

BKK → Bangkok, booked before you fly

A private driver meets you in arrivals at a price agreed when you book. Book with Welcome Pickups.

See transfer prices
Alaska Airlines plane soaring through a bright sky with fluffy clouds in Seattle. — lounges at Seattle AirportSeattle Airport · 2 lounges
Before you flyAirport lounges at Seattle →
Trains, buses and taxi faresBKK to Bangkok: getting into town →Early arrival or late flightLuggage storage in Bangkok →23 drop-off points

Things to book in Bangkok

All 77 things to do in Bangkok →
Stunning view of the MahaNakhon skyscraper in Bangkok against a clear blue sky.from €9.29
Mahanakhon SkyWalk 4.6 · 538 Tiqets reviews
from €16.46
Bangkok Dinner Cruises 4.0 · 90 Tiqets reviews
from €12.79
Bangkok Martial Arts Classes 4.9 · 85 Tiqets reviews
from €26.56
Rajadamnern Muay Thai Stadium 4.9 · 85 Tiqets reviews

Find hotels in Bangkok

Hotels, hostels & more · Trip.com

Search hotels

Airlines flying Seattle to Bangkok

We have not confirmed which airlines fly SEA–BKK nonstop. Search the route to see every carrier selling it today, including connections.

Seattle to Bangkok fares by month

With stops: Oct 2026, from $400. Lowest one-way fares seen for departures in each month, read 22 Oct 2026.

DepartingNonstop fromCheaper with stops
Oct 2026—$400 · 1 stop24 Oct 2026
Nov 2026—$462 · 1 stop6 Nov 2026
Jan 2027—$487 · 2 stops4 Jan 2027
Feb 2027—$402 · 1 stop11 Feb 2027

When to go for the lowest fare

Fares were close across the months we saw: $400 for October 2026, $402 at best after that.

From Travelpayouts flight-search data, city to city (Seattle to Bangkok, any airport), USD, read 22 Oct 2026. These are fares that were on sale, not a guarantee of today's price; an airline is named only where we know it flies this route.

Best time to fly to Bangkok

Based on weather and travel conditions in Thailand

Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Best monthsGoodAvoid if possible

The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Peak season: November – February

More for this trip

Frequently asked questions — Seattle to Bangkok flights

How long is the flight from Seattle to Bangkok?
Seattle (SEA) and Bangkok (BKK) are 11,988 km apart, about 15h 29m of flying time. We have not seen a nonstop fare on this pair, so expect to connect — the cheapest itinerary seen had 1 stop, which adds to the total journey time.
How far is Seattle from Bangkok by air?
The great-circle distance between Seattle–Tacoma International Airport and Suvarnabhumi Airport is 11,988 km (7,449 miles), a ultra long-haul route.
How much does a flight from Seattle to Bangkok cost?
The lowest one-way fare seen recently on SEA–BKK was $919 USD with Philippine Airlines (1 stop), departing 21 Dec 2026, found in fare searches as of 12 Oct 2026. Fares change constantly and depend on the date, so check the current price before booking.
What is the cheapest month to fly from Seattle to Bangkok?
In fares seen on 22 Oct 2026, departures in October 2026 were cheapest, from $400 one-way, against $487 for January 2027, the dearest month. Fares change daily, so check your own dates.
Do I need a visa to travel from Seattle to Thailand?
It depends on your passport. Some nationalities can enter Thailand visa-free or get a visa on arrival; others must apply in advance. Use AirConnect's Visa Checker to see the rules for your passport.
What is the best time to visit Bangkok?
The cool, dry season (November–February) is ideal — sunny skies, low humidity, and comfortable temperatures around 25–30°C. The monsoon (May–October) brings heavy rain especially in the south.

Sources: fares from Travelpayouts flight-search data, seen 12 Oct 2026; airlines from each carrier's published network and nonstop fares on sale; distance from OurAirports coordinates; flight time estimated from distance. Fares change daily.

Ready to book SEA–BKK?

Set a fare alert, check your visa, or search flights now.

🔔 Fare alert for SEA–BKK🌍 Check visa requirements ⚡ Connection risk checker