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Cheap flights from Bangkok to Seattle

BKK — SEA
12 Nov — 19 Nov1
1 adult
1 adult, Economy, 0 bags

Find flight deals from Bangkok to Seattle

Popular in

August

Cheapest in

March

Average price

฿30,004
Highest demand for flights based on searches. 5% potential increase in price (฿63,232 potential increase over avg. return price).
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Cheapest flight prices on average. 1% potential price decrease (฿12,314 potential savings vs. average return price).
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Average for round-trip flights in October 2026
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Best time to book a flight from Bangkok to Seattle

Have a flexible travel schedule? Discover the best time to fly to Seattle from Bangkok with our price prediction graph.
Estimated return price

Cheapflights Insights

Everything you need to know about your flight from Bangkok to Seattle

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

The best time to book flights from Bangkok to Seattle is 79 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.

What is the cheapest month to book a flight from Bangkok to Seattle?

Currently, March is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿24,332). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,595). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

Reviews of airlines servicing Seattle

Read through reviews of airlines operating flights from Bangkok to Seattle, such as STARLUX Airlines,EVA Air, andAsiana Airlines. Reviews also offer insight into each airline's entertainment options, comfort, food, crew/service, and boarding process.
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Food

8.6

Crew

9.1

Entertainment

8.7

Comfort

8.8

Boarding

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
STARLUX Airlines
8.8
Very Good
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Food

8.6

Crew

9.1

Entertainment

8.7

Comfort

8.8

Boarding

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
EVA Air
8.5
Very Good
1,548 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Food

8.6

Crew

9.1

Entertainment

8.7

Comfort

8.8

Boarding

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Asiana Airlines
8.1
Very Good
563 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Food

8.6

Crew

9.1

Entertainment

8.7

Comfort

8.8

Boarding

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.
Philippine Airlines
7.3
Good
1,031 reviews
STARLUX Airlines
8.8
Very Good
Check prices

Overall

8.8

Food

8.6

Crew

9.1

Entertainment

8.7

Comfort

8.8

Boarding

8.8

Reviews

1 / 15
8.0
Excellent

Anonymous,Jul 2026

TPE - CRK

Communication from other airlines. They were not aware that my connecting flight was late. I booked everything here but no one took care of it by checking.

Related info for your journey

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

    Located just 18.4 km from the city centre, Seattle/Tacoma Intl is the airport most travellers will use when flying to Seattle from Bangkok. Booking flights from Bangkok to Seattle/Tacoma Intl (SEA) should be relatively easy as there are 0 daily inbound flights from Bangkok from 4 different airlines.

  • What are the cheapest airlines flying from Bangkok to Seattle round-trip?

    According to our current data, Philippine Airlines (฿21,548), Asiana Airlines (฿22,500), and STARLUX Airlines (฿24,125) offers the cheapest pricing from Bangkok to Seattle. Philippine Airlines is priced at 27% lower than the current average price of a flight leaving 3 months from now.

  • What are the cheapest airlines to fly from Bangkok to Seattle one-way?

    One-way options have recently been found by users for as low as ฿14,464 on STARLUX Airlines. Other airlines that offer cheap prices include Korean Air from ฿15,676 and China Airlines from ฿15,888 one-way.

  • Can I find deals for flights from Bangkok to Seattle that include hotel bookings?

    Yes. In addition to deals on Bangkok to Seattle flights, Cheapflights offers holiday packages that include both flights and hotel.

  • How can I find direct flights from Bangkok to Seattle?

    After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Bangkok to Seattle.

  • Can I find deals for business class flights from Bangkok to Seattle?

    Yes. Cheapflights offers flight deals from Bangkok to Seattle by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

  • What is the cheapest month to book a flight from Bangkok to Seattle?

    Currently, March is the cheapest month in which you can book a flight from Bangkok to Seattle (average of ฿24,332). Flying from Bangkok to Seattle in August is currently the most expensive (average of ฿33,595). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.

See more FAQs

Browse thousands of different options on Cheapflights for your next trip

Alternative routes for Bangkok to Seattle

Chiang Mai to Seattle flights
Chiang Mai to Portland flights

Top 4 airlines flying from Bangkok to Seattle

AirlineCheapestAverageFlexibilityOn-time
Philippine AirlinesCheapest฿21,548Average฿23,107FlexibilityNo cancel feeOn-time60%
Search Philippine Airlines flights
Asiana AirlinesCheapest฿22,500Average฿24,459FlexibilityNo cancel feeOn-time76%
Search Asiana Airlines flights
STARLUX AirlinesCheapest฿24,125Average฿29,901FlexibilityNo cancel feeOn-timeN/A
Search STARLUX Airlines flights
EVA AirCheapest฿26,690Average฿30,716FlexibilityNo cancel feeOn-time74%
Search EVA Air flights

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Deals for Bangkok to Seattle flights are sourced from 900+ travel sites when you use Cheapflights. When all flight results come back, Cheapflights lets you sort and filter flights using different criteria to choose better, like price, airport, cabin class, and plenty of other options.

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Can Cheapflights find flights from Bangkok to Seattle with no change fees?

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Not ready to book yet? You can track prices for flights from Bangkok to Seattle on Cheapflights with our Price Alert feature and get notified when better prices are available.

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