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SEA - BKK

$407 Find Cheap Flights from Seattle to Bangkok Suvarnabhumi Airport - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$774
Typical prices: $741-$1,055
Singapore Airlines
Sun 11/25Fri 12/7
SEA - BKK • 1 stop
Cheapest one-way
$407
Typical prices: $398-$573
Multiple Airlines
Fri 1/12
SEA - BKK • 2 stops
Nonstop 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 travelers 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 $665 (round-trip)
Taipei City Taiwan Taoyuan Intl (TPE)
Shortest trip • 18h 18m (one-way)
Insights
Insights
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We hope you love 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

Wed, Nov 25 - Mon, Dec 7
Singapore Airlines Logo
8:40 am - 6:45 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
43h 05m1 stop Singapore Changi
Singapore Airlines Logo
9:40 am - 7:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
36h 25m1 stop Singapore Changi
$774Singapore Airlines
Thu, Oct 22 - Thu, Nov 5
Singapore Airlines Logo
9:55 am - 7:00 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
43h 05m1 stop Singapore Changi
Singapore Airlines Logo
9:40 am - 7:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
36h 25m1 stop Singapore Changi
$775Singapore Airlines
Sun, Nov 1 - Sat, Nov 14
Philippine Airlines Logo
9:30 pm - 8:55 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 25m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
11:40 pm - 6:45 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
34h 05m1 stop Manila Ninoy Aquino Intl
$778Philippine Airlines
Sat, Nov 14 - Wed, Nov 18
Hainan Airlines Logo
10:20 am - 2:20 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
37h 00m1 stop Beijing Capital
Hainan Airlines Logo
11:50 am - 8:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
35h 15m1 stop Chongqing Jiangbei Intl
$788Hainan Airlines
Tue, Dec 1 - Wed, Dec 9
Hainan Airlines Logo
10:20 am - 2:20 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
37h 00m1 stop Beijing Capital
Hainan Airlines Logo
11:50 am - 8:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
35h 15m1 stop Chongqing Jiangbei Intl
$788Hainan Airlines
Wed, Nov 4 - Sat, Nov 14
Philippine Airlines Logo
9:30 pm - 10:45 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
34h 15m1 stop Manila Ninoy Aquino Intl
Philippine Airlines Logo
7:50 pm - 6:45 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
37h 55m1 stop Manila Ninoy Aquino Intl
$796Philippine Airlines
Mon, Mar 1 - Mon, Mar 8
Korean Air Logo
11:00 am - 9:30 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
19h 30m1 stop Incheon Intl
Korean Air Logo
9:40 pm - 9:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
26h 25m1 stop Incheon Intl
$808Korean Air
Mon, Mar 1 - Sun, Mar 7
Korean Air Logo
7:20 am - 11:05 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
24h 45m2 stops San Francisco Incheon Intl
Korean Air Logo
1:05 am - 9:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
23h 00m1 stop Incheon Intl
$809Korean Air
Thu, Feb 18 - Wed, Feb 24
Delta Logo
12:50 pm - 9:30 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
41h 40m1 stop Incheon Intl
Delta Logo
11:15 pm - 11:50 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
27h 35m1 stop Incheon Intl
$818Delta
Thu, Jan 21 - Wed, Feb 3
Delta Logo
12:40 pm - 12:20 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 40m1 stop Incheon Intl
Delta Logo
9:50 am - 11:50 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
17h 00m1 stop Incheon Intl
$818Delta
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 $741 to $1,055. The lowest price found in the past 5 days was $774, 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’s 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 $774 round-trip.
•June ($1,281) and December ($1,206) 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.

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Key details for Seattle to Bangkok Suvarnabhumi Airport flights

Low season

May

Cheapest flight

$407
Beat the crowds with an average 45% drop in travelers.
The most popular month to fly with an average 58% increase in travelers.
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.

  • What cabin classes can I book on flights from Seattle to Bangkok Suvarnabhumi Airport?

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

    • Economy Class
    • Premium Economy Class
    • Business Class
    • First Class

    Prices vary by airline.

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

    A nonstop flight from Seattle to Bangkok Suvarnabhumi Airport takes 00m, covering 7,443 miles.

  • 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 $741 to $1,055, with an average of $860 over the past 12 months. Anything below $741 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 $860 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 $414, which is 10% below the typical average for this route.

  • 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 $13 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) - 30% of one-stop connections
    • Singapore Changi (SIN) - 14% 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 $822 round-trip on average, while Thursday is the most expensive at $902, a difference of $80.

    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 from Seattle to Bangkok Suvarnabhumi Airport?

    Flying via Taipei City Taiwan Taoyuan Intl (TPE) gives the shortest average 1-stop total travel time at 18h 18m, compared with 18h 27m via Tokyo Narita (NRT) and 18h 46m via Vancouver Intl (YVR).

  • 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 Pratunam, Siam Square 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 $822, about $80 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 $774 round-trip in that month - typically $507 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