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Cheap flights from Bangkok to Seattle

One-way from $462, found by travellers in the last 7 days. The live price is checked when you book.

Departure
Return
Prices for nearby dates
Fri, Dec 4Any priceSat, Dec 5$471Sun, Dec 6Any priceMon, Dec 7$462Tue, Dec 8Any priceWed, Dec 9Any priceThu, Dec 10Any priceFri, Dec 11Any price

Cheapest one-way tickets

Recent finds on different dates, for 1 adult. Booking opens on Aviasales, which shows baggage, fare rules and the live price.

Cheapest
$462
Philippine Airlines, flight PR 741Found 5 days ago, 1 adult
Check live price
9:55amBangkokMon, Dec 7
Travel time 15h 30m, 1 stopBKKSEA
10:25amSeattleMon, Dec 7
$471
Korean Air, flight KE 658Found 5 days ago, 1 adult
Check live price
9:40pmBangkokSat, Dec 5
Travel time 14h 55m, 1 stopBKKSEA
9:35pmSeattleSat, Dec 5
$506
Korean Air, flight KE 654Found 3 days ago, 1 adult
Check live price
1:05amBangkokTue, Oct 27
Travel time 15h 5m, 1 stopBKKSEA
2:10amSeattleTue, Oct 27
$592
Thai Vietjet Air, flight VZ 566Found 2 days ago, 1 adult
Check live price
1:50amBangkokMon, Jan 11
Travel time 18h 15m, 2 stopsBKKSEA
5:05amSeattleMon, Jan 11
$612
Philippine Airlines, flight PR 733Found 2 days ago, 1 adult
Check live price
11:40pmBangkokSun, Jan 10
Travel time 15h 25m, 1 stopBKKSEA
12:05amSeattleMon, Jan 11

Plan the rest of the trip

  • Mobile data in United StatesTravel eSIM from $4, installed before you fly.
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  • Getting from the airportTransfers and car hire in Seattle, booked ahead at a fixed price.
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  • Things to do in SeattlePopular tours from $32 per person.
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  • Travel insuranceTravel insurance quotes for United States from EKTA; check what each policy covers.
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  • Flight delayed?Delayed or cancelled? See which passenger rights cover this route.
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Lowest fares by month

In the fares found this week, December has the lowest: from $462 one-way, against $592 in January 2027. Pick a month to see its cheapest date.

  1. Oct$506
  2. Novno fares yet
  3. Dec$462
  4. Jan$592
  5. Febno fares yet
  6. Marno fares yet
  7. Aprno fares yet
  8. Mayno fares yet
  9. Junno fares yet
  10. Julno fares yet
  11. Augno fares yet
  12. Sepno fares yet
$0$200$400$600OctNov$462DecJanFebMarAprMayJunJulAugSep
Show as a table
MonthCheapest one-wayDateStops
October$506Tue, Oct 271 stop
November—
December$462Mon, Dec 71 stop
January 2027$592Mon, Jan 112 stops
February 2027—
March 2027—
April 2027—
May 2027—
June 2027—
July 2027—
August 2027—
September 2027—

Fares and weather by month

The lowest one-way fare found for each month, next to the weather in Seattle. Average daily high and low and monthly precipitation, 1991–2020 normals.

Oct2026NovDecJan2027FebMarAprMayJunJulAugSep
Lowest fare$506–$462$592––––––––
High °C16°11°8°9°10°12°15°19°22°25°25°22°
Low °C8°5°3°3°3°4°6°9°12°14°14°12°
Precipitation mm9916014514796106814837152541

Source: Seattle on Wikipedia, CC BY-SA 4.0.

Questions travellers ask

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

In the fares found this week, December has the lowest: from $462 one-way, against $592 in January 2027.

What is the weather in Seattle in December?

In December, the cheapest month to fly, the average daily high in Seattle is 8 °C and the low 3 °C.

Are there direct flights from Bangkok to Seattle?

None of the fares found recently are nonstop. The cheapest options have at least one stop.

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