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Find Cheap Flights from Bangkok to Seattle – Compare and Save

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Everything you should know

Direct flights
Not available
There are currently no direct flights between Bangkok and Seattle. You'll need to take a connecting flight to reach the destination.
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Insights
Top routes
BKK - SEA
Cheapest • 23% average savings
DMK - SEA
Most popular
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Insights
When to book
25 weeks
in advance
Our data shows that travellers who book at least 25 weeks in advance save around 33% compared to booking last minute.
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Insights
When to travel
March
Cheapest • 19% price drop
June
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Beijing Capital (PEK)
Cheapest • Avg ฿21,679 (return)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 18h 16m (one-way)
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Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Bangkok to Seattle

 
Discover the best prices for you by selecting your travel dates on KAYAK.

Recent return flight deals from Bangkok to Seattle

Multiple Airlines Logo
TH1  Glasgow Thorntonhall-SEA Seattle/Tacoma Airport
19285 kmmulti-stop
Multiple Airlines Logo
SEA  Seattle/Tacoma Airport-TH1 Glasgow Thorntonhall
19285 kmmulti-stop
Multiple Airlines
Booking Insights

Price, demand, and travel trends for Bangkok to Seattle flights

Use KAYAK data on prices, travel dates, airlines, and seasonal trends to compare options and book flights with more confidence.

What's the cheapest day of the week to fly from Bangkok to Seattle?

Based on deals KAYAK users found in the last 12 months, Wednesday is the cheapest day of the week to fly from Bangkok to Seattle. It's 6% cheaper than the average day, while Saturday is the most expensive, with prices 14% higher.

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

•March is the cheapest month to fly from Bangkok to Seattle at ฿23,509 return.
•August (฿33,136) and January (฿30,433) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 40% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Bangkok to Seattle the cheapest?

Flights from Bangkok to Seattle are cheapest 25 weeks before departure. Booking in this window typically costs about 33% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

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Key details for Bangkok to Seattle flights

Low season

September
Beat the crowds with an average 40% drop in travellers.
The most popular month to fly with an average 44% increase in travellers.

When to book flights from Bangkok to Seattle

Are your dates flexible? Find out the best times to travel from Bangkok to Seattle based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated return price

Your Bangkok to Seattle flight questions, answered

Find helpful answers about this route, including flight times, airports, airlines, and booking tips.

  • Which cabin classes can I book on flights from Bangkok to Seattle?

    Three cabin classes are available on flights from Bangkok to Seattle:

    • Economy class
    • Premium Economy Class
    • Business Class

  • How long is a flight from Bangkok to Seattle?

    A direct flight from Bangkok to Seattle takes 00m, covering 19,285 km.

  • Do I need a passport to fly from Bangkok to Seattle?

    Yes, a valid passport is required for this international route. Many destinations require at least six months of validity beyond your travel dates. Check your passport expiry well before booking.

  • How much should I expect to pay for a Bangkok to Seattle flight?

    Return flights from Bangkok to Seattle range from ฿25,660 to ฿32,485, with an average of ฿29,039 over the past 12 months. Anything below ฿25,660 counts as a good deal.

  • How expensive are last-minute Bangkok to Seattle flights?

    Last-minute fares on this route (booked within two weeks of departure) run 14% above the ฿29,039 route average. Book 25 weeks before departure for the lowest fares.

  • Which car hire options are available at Seattle/Tacoma Intl Airport (SEA)?

    Seattle/Tacoma Intl Airport (SEA) hosts 5 major car rental companies, with daily rates starting from around ฿127 for economy cars. Top options include:

    • Fox
    • Europcar
    • Thrifty
    • Budget
    • Hertz

  • Which airports can I use when flying from Bangkok to Seattle?

    Flights from Bangkok to Seattle may depart from several airports in Bangkok area, including Bangkok Suvarnabhumi (BKK) and Bangkok Don Mueang Intl (DMK). Flights usually arrive at Seattle/Tacoma Intl (SEA).

  • Which airports do connecting flights from Bangkok to Seattle pass through?

    One-stop flights from Bangkok to Seattle most commonly connect through:

    • Incheon Intl (ICN) – 46% of one-stop connections
    • Taipei City Taiwan Taoyuan Intl (TPE) – 39% of one-stop connections
    • Manila Ninoy Aquino Intl (MNL) – 6% of one-stop connections
    • Tokyo Haneda (HND) – 5% of one-stop connections

  • Can I save money by using flexible dates for flights from Bangkok to Seattle?

    Yes. Flexible dates can save you up to 18% on flights from Bangkok to Seattle. Wednesday is the cheapest departure day at ฿27,562 return on average, while Saturday is the most expensive at ฿33,338, a difference of ฿5,776.

    KAYAK's flexible dates feature shows options up to three days before and after your selected dates, making it easier to compare nearby fares.

  • How much time can I save by choosing a different stopover airport from Bangkok to Seattle?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time of 18h 16m, compared to 18h 23m via Vancouver Intl (YVR) and 19h 20m via Hong Kong Intl (HKG).

  • What is the time difference between Bangkok and Seattle?

    Seattle is 14 hours behind Bangkok (Pacific Time vs Indochina Time). Plan for the time shift when scheduling connections or first-day activities.

  • What popular places can I visit in Seattle?

    Seattle Waterfront is one of the most viewed places in Seattle on KAYAK.

Your guide to booking Bangkok to Seattle flights

Get tips on when to book, when to fly, and what to know before your trip.
  • If your dates are flexible, aim for a Wednesday departure and avoid flying on Saturday. On this route, Wednesday flights average ฿27,562, which is about ฿5,776 less than Saturday fares (17% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 25 weeks before you fly. On this route, that window historically saves about 33% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Bangkok to Seattle trip for March. Fares historically average ฿23,509 return in that month – typically ฿9,627 less than the most expensive month, which is August (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Seattle/Tacoma Intl Airport.

    • Coast Gateway Hotel
    • Seattle Airport Marriott
    • Fairfield by Marriott Inn & Suites Seattle Sea-Tac Airport

More options for your flight from Bangkok to Seattle

Complete your trip to Seattle with a hotel stay or car hire

Car rentals in Seattle
Hotels in Seattle