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SEA - BKK

฿13,665 Find Cheap Flights from Seattle to Bangkok Suvarnabhumi Airport – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest return flight
฿26,050
Typical prices: ฿24,954-฿35,502
Singapore Airlines
Sun 25/11Fri 7/12
SEA - BKK • 1 stop
Cheapest one-way flight
฿13,665
Typical prices: ฿13,385-฿19,270
Korean Air
Thu 1/2
SEA - BKK • 1 stop
Direct flights
Not available
There are currently no direct flights between Seattle and Bangkok Suvarnabhumi Airport. You'll need to take a connecting flight to reach the destination.
Insights
Insights
When to book
8 weeks
in advance
Our data shows that travellers who book at least 8 weeks in advance save around 17% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 10% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top stopover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg ฿21,922 (return)
Vancouver Intl (YVR)
Shortest trip • 18h 18m (one-way)
Insights
Insights
Start a new search
KAYAK searches hundreds of sites at once to find you the best travel deals.
We hope you enjoy your trip to Bangkok Suvarnabhumi Airport!
Flight Deals
Booking Insights
Flight Deals

Cheap Flights from Seattle to Suvarnabhumi (SEA-BKK)

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

Recent return flight deals from Seattle to Suvarnabhumi

Wed 25 Nov - Mon 7 Dec
Singapore Airlines Logo
08:40 - 18:45SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
43h 05m1 stop Singapore Changi
Singapore Airlines Logo
09:40 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
36h 25m1 stop Singapore Changi
฿26,050Singapore Airlines
Thu 22 Oct - Thu 5 Nov
Singapore Airlines Logo
09:55 - 19:00SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
43h 05m1 stop Singapore Changi
Singapore Airlines Logo
09:40 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
36h 25m1 stop Singapore Changi
฿26,084Singapore Airlines
Wed 18 Nov - Sun 22 Nov
Singapore Airlines Logo
08:40 - 20:00SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 20m1 stop Singapore Changi
Singapore Airlines Logo
20:00 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
74h 05m1 stop Singapore Changi
฿26,118Singapore Airlines
Fri 29 Jan - Sat 20 Feb
Singapore Airlines Logo
08:40 - 14:35SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
38h 55m1 stop Singapore Changi
Singapore Airlines Logo
09:40 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
36h 25m1 stop Singapore Changi
฿26,151Singapore Airlines
Fri 13 Nov - Fri 20 Nov
Singapore Airlines Logo
08:40 - 17:00SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
41h 20m1 stop Singapore Changi
Singapore Airlines Logo
18:10 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
27h 55m1 stop Singapore Changi
฿26,151Singapore Airlines
Tue 17 Nov - Thu 14 Jan
Singapore Airlines Logo
08:40 - 17:00SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
41h 20m1 stop Singapore Changi
Singapore Airlines Logo
12:00 - 07:05BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
34h 05m1 stop Singapore Changi
฿26,185Singapore Airlines
Mon 9 Nov - Wed 9 Dec
Philippine Airlines Logo
21:30 - 12:05SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
23h 35m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
09:55 - 18:45BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
23h 50m1 stop Manila Ninoy Aquino Intl
฿26,353Philippine Airlines
Thu 5 Nov - Fri 13 Nov
ไห่หนานแอร์ไลน์ Logo
10:05 - 10:40SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
33h 35m1 stop Chongqing Jiangbei Intl
ไห่หนานแอร์ไลน์ Logo
01:05 - 08:20BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
22h 15m1 stop Beijing Capital
฿26,521ไห่หนานแอร์ไลน์
Thu 12 Nov - Fri 20 Nov
ไห่หนานแอร์ไลน์ Logo
10:05 - 10:40SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
33h 35m1 stop Chongqing Jiangbei Intl
ไห่หนานแอร์ไลน์ Logo
01:05 - 08:20BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
22h 15m1 stop Beijing Capital
฿26,521ไห่หนานแอร์ไลน์
Tue 20 Oct - Mon 9 Nov
ไห่หนานแอร์ไลน์ Logo
11:00 - 12:20SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
35h 20m1 stop Beijing Capital
ไห่หนานแอร์ไลน์ Logo
16:20 - 08:20BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
31h 00m1 stop Beijing Capital
฿26,521ไห่หนานแอร์ไลน์
Booking Insights

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

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

How much is a return flight from Seattle to Bangkok Suvarnabhumi Airport?

Return flights from Seattle to Bangkok Suvarnabhumi Airport typically range from ฿24,954 to ฿35,502. The lowest price found in the past 5 days was ฿26,050 on Singapore Airlines.

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

Based on deals KAYAK users found in the last 12 months, Sunday is the cheapest day of the week to fly from Seattle to Bangkok Suvarnabhumi Airport. It’s 5% cheaper than the average day, while Thursday is the most expensive, with prices 4% higher.

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

•March is the cheapest month to fly from Seattle to Bangkok Suvarnabhumi Airport at ฿26,050 return.
•June (฿43,114) and December (฿40,590) are the most expensive months.
•The price difference between flying in the cheapest and most expensive months is 65% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are flights from Seattle to Bangkok Suvarnabhumi Airport the cheapest?

Flights from Seattle to Bangkok Suvarnabhumi Airport are cheapest 8 weeks before departure. Booking in this window typically costs about 17% less than the average last-minute fare (within 2 weeks of the flight), based on KAYAK data.

Find deals

Key details for Seattle to Bangkok Suvarnabhumi Airport flights

Low season

May

Cheapest flight

฿13,665
Beat the crowds with an average 45% drop in traveller numbers.
The most popular month to fly with an average 58% increase in traveller numbers.
One-way flight from Seattle to Bangkok Suvarnabhumi Airport

When to book flights from Seattle to Suvarnabhumi

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

Your Seattle to Bangkok Suvarnabhumi Airport 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 Seattle to Bangkok Suvarnabhumi Airport?

    Two cabin classes are available on flights from Seattle to Bangkok Suvarnabhumi Airport:

    • Economy class
    • Business Class

  • How long is a flight from Seattle to Bangkok Suvarnabhumi Airport?

    A direct flight from Seattle to Bangkok Suvarnabhumi Airport takes 00m, covering 19,277 km.

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

    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 Seattle to Bangkok Suvarnabhumi Airport flight?

    Return flights from Seattle to Bangkok Suvarnabhumi Airport range from ฿24,954 to ฿35,502, with an average of ฿28,929 over the past 12 months. Anything below ฿24,954 counts as a good deal.

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

    Last-minute fares on this route (booked within two weeks of departure) run 10% above the ฿28,929 route average. Book 8 weeks before departure for the lowest fares.

  • How are flight prices from Seattle to Bangkok Suvarnabhumi Airport looking right now?

    One-way fares from Seattle to Bangkok Suvarnabhumi Airport are currently lower than usual. Average one-way flight prices are about ฿13,934, which is 10% below the typical average for this route.

  • Which car hire options are available at Bangkok Suvarnabhumi Airport (BKK)?

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around ฿452 for economy cars. Top options include:

    • Drive Car Rental
    • Alamo
    • Sixt
    • Yesaway
    • Hertz

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

    Flights from Seattle to Bangkok Suvarnabhumi Airport usually depart from Seattle/Tacoma Intl (SEA) and arrive at Bangkok Suvarnabhumi (BKK).

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

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

    • Taipei City Taiwan Taoyuan Intl (TPE) – 38% of one-stop connections
    • Incheon Intl (ICN) – 31% of one-stop connections
    • Singapore Changi (SIN) – 13% of one-stop connections
    • Tokyo Haneda (HND) – 10% of one-stop connections

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

    Yes. Flexible dates can save you up to 9% on flights from Seattle to Bangkok Suvarnabhumi Airport. Sunday is the cheapest departure day at ฿27,666 return on average, while Thursday is the most expensive at ฿30,358, a difference of ฿2,693.

    Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time of 18h 18m, compared to 18h 20m via Taipei City Taiwan Taoyuan Intl (TPE) and 18h 24m via Tokyo Narita (NRT).

  • What is the time difference between Seattle and Bangkok Suvarnabhumi Airport?

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

  • What popular places can I visit in Bangkok Suvarnabhumi Airport?

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Victory Monument, Siam Square, and Pratunam. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

Your guide to booking Seattle to Bangkok Suvarnabhumi Airport 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 Sunday departure and avoid flying on Thursday. On this route, Sunday flights average ฿27,666, about ฿2,693 less than Thursday fares (9% savings) based on the last 12 months.
  • For the best chance at a low fare, aim to book around 8 weeks before you fly. On this route, that window historically saves about 17% versus last-minute pricing (KAYAK booking data, last 12 months).
  • If you can choose when to travel, plan your Seattle to Bangkok Suvarnabhumi Airport trip for March. Fares historically average ฿26,050 return in that month – typically ฿17,064 less than the most expensive month, which is June (based on the last 12 months).
  • If you're arriving late at night and need somewhere to stay, check out these hotels close to Bangkok Suvarnabhumi Airport.

    • Regency Bangkok Suvarnabhumi Airpor
    • Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)
    • Suvarnabhumi Ville Airport Hotel

More options for your flight from Seattle to Suvarnabhumi

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

Car rentals in Bangkok
Hotels in Bangkok