SEA - BKK

$398 Find Cheap Flights from Seattle to Bangkok - Compare and Save

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1 adult, Economy, 0 bags

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Everything you should know

Cheapest round-trip
$681
Typical prices: $714-$1,037
Singapore Airlines
Tue 9/25Mon 10/15
SEA - BKK • 1 stop
Cheapest one-way
$398
Typical prices: $382-$583
Multiple Airlines
Thu 9/13
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 14% compared to booking last minute.
Insights
Insights
When to travel
March
Cheapest • 9% price drop
December
Most popular
Good to know
+1
Good to know
+1
Top layover airports
Manila Ninoy Aquino Intl (MNL)
Cheapest • Avg $656 (round-trip)
Vancouver Intl (YVR)
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

Fri, Sep 25 - Thu, Oct 15
Singapore Airlines Logo
10:15 am - 5:15 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
41h 00m1 stop Singapore Changi
Singapore Airlines Logo
9:20 am - 8:45 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
37h 25m1 stop Singapore Changi
$681Singapore Airlines
Tue, Oct 20 - Mon, Oct 26
Singapore Airlines Logo
10:15 am - 5:15 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
41h 00m1 stop Singapore Changi
Singapore Airlines Logo
1:35 pm - 8:10 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
32h 35m1 stop Singapore Changi
$689Singapore Airlines
Mon, Sep 14 - Wed, Sep 23
Air Canada Logo
10:50 am - 5:05 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
28h 15m1 stop Vancouver Intl
Air Canada Logo
7:05 am - 6:32 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
25h 27m1 stop Vancouver Intl
$753Air Canada
Mon, Sep 14 - Mon, Oct 19
Air Canada Logo
3:00 pm - 5:05 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
24h 05m1 stop Vancouver Intl
Air Canada Logo
7:05 am - 6:32 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
25h 27m1 stop Vancouver Intl
$753Air Canada
Sun, Sep 6 - Mon, Sep 21
Asiana Airlines Logo
12:10 am - 10:40 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 30m1 stop Incheon Intl
Asiana Airlines Logo
11:45 am - 3:15 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
17h 30m1 stop Incheon Intl
$762Asiana Airlines
Mon, Oct 19 - Sat, Nov 7
Asiana Airlines Logo
12:10 am - 10:40 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 30m1 stop Incheon Intl
Asiana Airlines Logo
11:55 pm - 1:55 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
29h 00m1 stop Incheon Intl
$769Asiana Airlines
Sun, Sep 13 - Mon, Sep 28
Multiple Airlines Logo
10:50 am - 9:35 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
32h 45m2 stops Vancouver Intl Hong Kong Intl
Multiple Airlines Logo
7:05 am - 2:17 pmBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
21h 12m1 stop Vancouver Intl
$780Multiple Airlines
Sun, Sep 13 - Mon, Sep 28
Multiple Airlines Logo
7:15 pm - 9:35 amSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
24h 20m2 stops Vancouver Intl Hong Kong Intl
Multiple Airlines Logo
7:05 am - 10:05 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
17h 00m1 stop Vancouver Intl
$781Multiple Airlines
Sun, Sep 6 - Sun, Sep 13
Korean Air Logo
12:50 pm - 11:35 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 45m1 stop Incheon Intl
Korean Air Logo
9:40 pm - 10:40 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
27h 00m1 stop Incheon Intl
$797Korean Air
Tue, Oct 20 - Tue, Oct 27
Korean Air Logo
12:50 pm - 11:35 pmSEA  Seattle/Tacoma Intl-BKK Bangkok Suvarnabhumi
20h 45m1 stop Incheon Intl
Korean Air Logo
12:55 am - 10:00 amBKK  Bangkok Suvarnabhumi-SEA Seattle/Tacoma Intl
23h 05m1 stop Incheon Intl
$799Korean 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 from Seattle to Bangkok Suvarnabhumi Airport 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 start at $681. Prices are below average for this route right now, with typical round-trip fares ranging from $714 to $1,037. The lowest price found in the past 5 days was $681 on Singapore Airlines.

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

Sunday is the cheapest day of the week to fly from Seattle to Bangkok Suvarnabhumi Airport, it is 6% cheaper than the average day. Friday is the most expensive day with flight prices 3% higher than average. Based on deals found by KAYAK users in the last 12 months.

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 $763 round-trip.
  • June ($1,295) and December ($1,230) are the most expensive months.
  • The price difference between flying in the cheapest and most expensive months is 69% on average.
This is based on KAYAK aggregated and averaged internal data over the past 12 months.

When are prices 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 14% 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

$398
Best time to beat the crowds but there is an average 13% increase in price.
Most popular time to fly with an average 46% increase in price.
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 route details based on KAYAK data, including flight times, airports, airlines and booking questions.

  • 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).

  • 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.

  • 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

    Taipei City Taiwan Taoyuan Intl (TPE) handles the largest share of one-stop connections on this route.

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

    On the Seattle to Bangkok Suvarnabhumi Airport route, being flexible with your departure day can save you up to 10%. Sunday is the cheapest day at $793 round-trip on average, while Friday is the most expensive at $875: a $82 difference. Cheaper weekend fares like these are typical of routes dominated by weekday business travel.

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

    Some of the most popular sights in Bangkok Suvarnabhumi Airport are Pratunam, Terminal 21 and Sukhumvit Road. These are among the most viewed places in Bangkok Suvarnabhumi Airport on KAYAK.

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

    A nonstop flight from Seattle to Bangkok Suvarnabhumi Airport takes 0h 00m, covering 7,443 miles.

  • What are the earliest and latest flights from Seattle to Bangkok Suvarnabhumi Airport?

    These are the earliest and latest flight times available from Seattle to Bangkok Suvarnabhumi Airport:

    • Earliest: departs at 12:00 am and lands at 12:00 am
    • Latest: departs at 12:00 am and lands at 12:00 am.

    The flight takes about 0h 00m.

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

    Last-minute fares on this route - booked within 2 weeks of departure - run 9% above the route average of $843. Book 8 weeks before departure for the lowest fares.

  • 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 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 $407, which is 11% below the typical average for this route.

  • How much time can I save by choosing a different layover airport 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.

  • 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

  • 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 $714 to $1,037, with an average of $843 over the past 12 months. Anything below $714 counts as a good deal.

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 can be flexible, aim for a Sunday departure instead of Friday. On this route, Sunday flights average $793 - about $82 less than Friday (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 14% 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 $763 round-trip in that month - typically $532 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
    - Suvarnabhumi Ville Airport Hotel
    - Siam Mandarina Bangkok Suvarnabhumi Airport Hotel (Free Shuttle)

Everything you need to know for your flight from Seattle to Bangkok

Information on your arrival and departure airports

Seattle (SEA)
Suvarnabhumi (BKK)