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SEA - BKK

C$ 595 Find Cheap Flights from Seattle to Bangkok – Compare and Save

1 adult
1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
C$ 1,137
Typical prices: C$ 1,057-C$ 1,504
Singapore Airlines
Tue 13/3Thu 29/3
SEA - BKK • 1 stop
Cheapest one-way flights
C$ 595
Typical prices: C$ 567-C$ 816
Delta
Thu 8/3
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 layover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg C$ 929 (round-trip)
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 Bangkok (SEA-BKK)

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

Recent round-trip flight deals from Seattle to Bangkok

Sat, 13 Mar - Mon, 29 Mar
Singapore Airlines Logo
8:40 a.m. - 2:35 p.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
38h 55m1 stop Singapore Changi
Singapore Airlines Logo
9:20 a.m. - 8:45 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
37h 25m1 stop Singapore Changi
C$ 1,137Singapore Airlines
Mon, 23 Nov - Mon, 7 Dec
Philippine Airlines Logo
9:30 p.m. - 6:45 p.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
30h 15m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
1:10 p.m. - 6:45 p.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
20h 35m1 stop Manila Ninoy Aquino Intl
C$ 1,164Philippine Airlines
Tue, 2 Feb - Mon, 22 Feb
Delta Logo
12:50 p.m. - 11:05 p.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
19h 15m1 stop Incheon Intl
Delta Logo
1:05 a.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
25h 45m1 stop Incheon Intl
C$ 1,166Delta
Mon, 1 Feb - Tue, 23 Feb
Delta Logo
12:50 p.m. - 12:20 a.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 30m1 stop Incheon Intl
Delta Logo
1:05 a.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
25h 45m1 stop Incheon Intl
C$ 1,166Delta
Mon, 1 Feb - Sun, 21 Feb
Delta Logo
12:50 p.m. - 11:05 p.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
19h 15m1 stop Incheon Intl
Delta Logo
9:40 p.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
29h 10m1 stop Incheon Intl
C$ 1,166Delta
Tue, 16 Feb - Mon, 22 Feb
Delta Logo
12:50 p.m. - 12:20 a.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 30m1 stop Incheon Intl
Delta Logo
9:40 p.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
29h 10m1 stop Incheon Intl
C$ 1,166Delta
Mon, 15 Feb - Wed, 24 Feb
Delta Logo
12:50 p.m. - 1:25 p.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
33h 35m1 stop Incheon Intl
Delta Logo
9:50 a.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
17h 00m1 stop Incheon Intl
C$ 1,166Delta
Mon, 15 Feb - Mon, 22 Feb
Delta Logo
12:50 p.m. - 12:20 a.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 30m1 stop Incheon Intl
Delta Logo
11:15 p.m. - 11:50 a.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
27h 35m1 stop Incheon Intl
C$ 1,166Delta
Wed, 13 Jan - Fri, 15 Jan
EVA Air Logo
12:10 a.m. - 11:30 a.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 20m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
4:05 p.m. - 6:10 p.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
17h 05m1 stop Taipei City Taiwan Taoyuan Intl
C$ 1,908EVA Air
Fri, 1 Jan - Mon, 11 Jan
EVA Air Logo
12:10 a.m. - 11:10 a.m.SEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 00m1 stop Taipei City Taiwan Taoyuan Intl
EVA Air Logo
5:15 p.m. - 6:10 p.m.BKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
15h 55m1 stop Taipei City Taiwan Taoyuan Intl
C$ 1,908EVA Air
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 round-trip flight from Seattle to Bangkok Suvarnabhumi Airport?

Round-trip flights from Seattle to Bangkok Suvarnabhumi Airport typically range from C$ 1,057 to C$ 1,504. The lowest price found in the past 5 days was C$ 1,137, 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 C$ 1,104 round-trip.
•June (C$ 1,827) and December (C$ 1,720) 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

C$ 595
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 Bangkok

Are your dates flexible? Find out the best times to travel from Seattle to Bangkok based on our flight data from the last year. Discover the cheapest month and even day to fly.
Estimated round-trip 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
    • Premium Economy Class

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

    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?

    Round-trip flights from Seattle to Bangkok Suvarnabhumi Airport range from C$ 1,057 to C$ 1,504, with an average of C$ 1,226 over the past 12 months. Anything below C$ 1,057 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 C$ 1,226 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 in line with typical prices for this route. Average one-way fares are about C$ 684.

  • What car rental options are available at Bangkok Suvarnabhumi Airport (BKK)?

    Bangkok Suvarnabhumi Airport (BKK) hosts 5 major car rental companies, with daily rates starting from around C$ 19 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 C$ 1,172 round-trip on average, while Thursday is the most expensive at C$ 1,286, a difference of C$ 114.

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

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

    Flying via Vancouver Intl (YVR) gives the shortest average 1-stop total travel time at 18h 18m, compared with 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.

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

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam and Thailand Cultural Center. 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 C$ 1,172, about C$ 114 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 C$ 1,104 round-trip in that month – typically C$ 723 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 Bangkok

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

Car rentals in Bangkok
Hotels in Bangkok
Vacations in Bangkok