Seattle (SEA) → Bangkok (BKK)
About Seattle to Bangkok Flights
Discover the best flights from Seattle to Bangkok, covering 11,987 km in approximately 15h 29m. Seattle (SEA) to Bangkok (BKK) is one of the major long-haul routes connecting United States and Thailand. With 7 major airlines operating this route, travelers have plenty of options to choose from. Whether you're traveling for business or leisure, our comprehensive guide helps you find the best deals, understand seasonal price variations, and choose the right airline for your journey from Seattle to Bangkok.
12-Month Price History
Flight prices from Seattle to Bangkok vary significantly throughout the year. February typically offers the best deals with average prices around $2106, while July sees the highest prices, averaging $3592. Savvy travelers can save up to 41% by choosing their travel dates wisely.
Best Time to Fly
Cheapest Month
February
Save up to 40% on average
Most Expensive
July
Peak season pricing
Book in Advance
76 days
For best prices
Booking Tips
For the best prices on Seattle to Bangkok flights, we recommend booking 77 days in advance. International flights typically see price increases as the departure date approaches, so early booking is advisable. Tuesday and Wednesday departures often offer the lowest fares, while Friday and Sunday flights tend to be more expensive due to business and leisure travel demand. Consider flying early morning or late evening for additional savings, as these off-peak times usually have lower demand.
Airlines Serving This Route
| Airline | Economy | Business | First |
|---|---|---|---|
American Airlines AA | $2890 | $12480 | $18200 |
British Airways BA | $3310 | $13980 | $20080 |
Delta Air Lines DL | $3560 | $11760 | $21030 |
United Airlines UA | $3570 | $12320 | $16880 |
Thai Airways TG | $3620 | $10480 | $17640 |
Alaska Airlines AS | $3740 | $11050 | $20130 |
Thai VietJet Air VZ | $3830 | $13130 | $16710 |
American Airlines
AA
Economy
$2890
Business
$12480
First
$18200
British Airways
BA
Economy
$3310
Business
$13980
First
$20080
Delta Air Lines
DL
Economy
$3560
Business
$11760
First
$21030
United Airlines
UA
Economy
$3570
Business
$12320
First
$16880
Thai Airways
TG
Economy
$3620
Business
$10480
First
$17640
Alaska Airlines
AS
Economy
$3740
Business
$11050
First
$20130
Thai VietJet Air
VZ
Economy
$3830
Business
$13130
First
$16710
Prices shown are estimates based on historical data. Actual prices may vary based on dates, availability, and current promotions.
Alternative Flight Options
Seattle → Bangkok
Seattle-Tacoma International (SEA) to Don Mueang International (DMK)
Distance: 11,973 km
Average price: $2465
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Frequently Asked Questions
How long is the flight from Seattle to Bangkok?
The flight time from Seattle (SEA) to Bangkok (BKK) is approximately 15 hours and 29 minutes. This duration is for direct flights and may vary depending on aircraft type, weather conditions, and air traffic.
What is the distance between Seattle and Bangkok?
The aerial distance between Seattle and Bangkok is 11,987 kilometers (7,448 miles). This is the straight-line distance, which is used to calculate flight times.
Which airlines fly from Seattle to Bangkok?
Several airlines operate flights between Seattle and Bangkok, including Delta Air Lines, Alaska Airlines, Thai Airways and 4 more airlines. Most flights on this route include one or more stops.
What is the cheapest month to fly from Seattle to Bangkok?
Based on historical data, February typically offers the lowest airfares for flights from Seattle to Bangkok. However, prices can vary based on holidays, events, and airline promotions. We recommend checking our price calendar for the most up-to-date information.
How far in advance should I book my flight to Bangkok?
For the best prices on Seattle to Bangkok flights, we recommend booking 86 days in advance. International flights generally require earlier booking than domestic routes.
Do I need a visa to travel from Seattle to Bangkok?
Visa requirements depend on your nationality and the purpose of your visit. Citizens of United States traveling to Thailand should check the latest visa requirements. Visit our partner site visarequirements.io for detailed visa information.
What is the time difference between Seattle and Bangkok?
Seattle operates on America/Los_Angeles time zone, while Bangkok is in the Asia/Bangkok time zone. For current time differences and to plan your schedule, visit our partner site timezig.com for accurate timezone conversions.