Cheap flights from Seattle to Bangkok

5 Dec — 12 Dec1
1 adult
Mon 5/12
Mon 12/12

How to find the cheapest flight from Seattle (SEA) to Bangkok

All the information you need to plan the best SEA to TH1 flight in 2022: compare Seattle to Bangkok flight prices with the expected peak season, weather and rainfall in Bangkok.



C$ 801 - C$ 1,486



26 - 30 °C



10 - 320 mm

Popular inJuneHigh demand for flights, 31% potential price rise
Cheapest inFebruaryBest time to find cheap flights, 22% potential price drop
Average priceC$ 1,228Average for round-trip flights in November 2022
Round-trip fromC$ 1,082From Seattle/Tacoma Intl to Bangkok

How far in advance should I book a flight from Seattle to Bangkok?

Find a great deal and save up to 26% by booking at least 61 days prior to your desired departure date, rather than waiting until the week of travel. According to our data, there are a number of flights available from Seattle to Bangkok within the next two weeks, with the cheapest ticket starting at C$ 1,568.

What is the cheapest month to fly from Seattle to Bangkok?

February is one of the best times of the year to fly to Bangkok from Seattle. Prices for February average C$ 1,383 per person but you can even find prices for as low as C$ 902. The most expensive prices can be found in the month of June. Opting for a February flight can save you 45% on your journey compared to booking in June

When is the cheapest time to fly from Seattle to Bangkok (SEA - BKK)?

When flying from Seattle to Bangkok, the time of day you decide to fly out makes little to no difference towards the overall price you’ll pay on tickets.

Related info for your journey

Useful info, stats and facts about Seattle to Bangkok flights.

What airport do you fly from for flights from Seattle to Bangkok?

Most people fly from Seattle/Tacoma Intl (SEA) if they book a flight from Seattle to Bangkok. On average, Seattle/Tacoma Intl has 0 outbound flights to Bangkok per day from 0 airlines. Seattle/Tacoma Intl is conveniently located just 18.4 km from Seattle’s city centre.