Cheap flights from Bangkok to Seattle

One-way fares from $492 · BKK → SEA · prices found by travellers in the last 48 hours

Compare all dates Seattle → Bangkok
Cheapest fare
$492

Hainan Airlines · Wed, Jan 27

Cheapest month
January

from $492

Direct flights
Not recently

Usually 1+ stop

Quickest trip
15h 00m

11,980 km

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Cheapest month to fly from Bangkok to Seattle

Lowest one-way fare per person in each month. Choose a month to see every date.

  1. December 2026 $499
  2. January 2027 Cheapest $492
  3. February 2027 $493

Cheapest dates in January 2027

The lowest fares we've seen for each day, cheapest first.

Hainan Airlines
Depart11:10 Wed, Jan 27BKK → SEA 19h 05m · 1 stop
$492one way, per person
View deal
Philippine Airlines
Depart09:55 Mon, Jan 11BKK → SEA 15h 30m · 1 stop
$621one way, per person
View deal
See every date in January 2027 →

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About flights from Bangkok to Seattle

Bangkok (BKK) and Seattle (SEA) are about 11,980 km apart. We haven't seen direct fares on this route recently, so expect at least one stop; the quickest journey we've seen takes about 15h 00m. Over the next few months, one-way fares start from $492, and January 2027 is currently the cheapest month to fly.

These prices come from searches travellers made in the last 48 hours, so they move quickly. If you see a good fare, it's worth booking soon. FlightsExp is free to use: you book directly with our travel partner.

Frequently asked questions

How much is a flight from Bangkok to Seattle?

The cheapest one-way fare we've seen recently is $492 with Hainan Airlines, departing Wednesday, January 27, 2027. Over the coming months, the lowest fare in each month ranges from $492 to $499.

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

January 2027 currently has the lowest fares, from $492 one way.

Are there direct flights from Bangkok to Seattle?

We haven't seen direct fares recently, so most journeys include at least one stop.

How long is the flight from Bangkok to Seattle?

The quickest journey we've seen takes about 15h 00m. Bangkok and Seattle are around 11,980 km apart.

Which airlines fly from Bangkok to Seattle?

Recent fares on this route were with Korean Air, Hainan Airlines and Philippine Airlines.

More cheap flights from Bangkok

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