Cheap Flights from Seattle, WA to Bangkok from $367

Return flight: Bangkok – Seattle

On Cheapflightsplus.com you will find 271 connecting flights from Seattle to Bangkok. You can compare airfare deals from 24 airlines and multiple travel sites from $367, book and save on cheap plane tickets and last minute offers. Also check out SEA-BKK flight schedule to find best flight time, convenient departure and arrival airports.

Find One-Way and Round-Trip Seattle to Bangkok Flight Deals

To find the cheapest one way airline ticket select the date with the lowest price on the calendar below and click «Find Flights». To search for round-trip flight deals click on the link «Check prices for return flights» and select the date of the return flight. Cheapest flights in November: $367 (one-way), $629 (round-trip).
Direct flights
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Full flight schedule will help you in detecting at what time planes fly from Seattle to Bangkok. You can also specify the concrete flights and airlines on the route and how long the flight actually is. Use the calendar for today, tomorrow or other specific date as some flights are available only on certain days of the week.
Departure Arrival Flight Details Flight Duration Price
01:15 — 12:00
+1 day
00:05 — 05:15 JX31 Jambojet
Seattle — Taipei
4h 35m stop
09:25 — 12:35 JX741 Jambojet
Taipei — Bangkok
20h 45m
including layover
Find flight
from$395
01:15 — 16:40
+1 day
00:05 — 05:15 JX31 Jambojet
Seattle — Taipei
9h 25m stop
13:30 — 16:30 JX745 Jambojet
Taipei — Bangkok
25h 25m
including layover
Find flight
from$395
01:40 — 09:45
+1 day
01:10 — 05:05 CI21 China Airlines
Seattle — Taipei
1h 55m stop
07:00 — 09:45 CI833 China Airlines
Taipei — Bangkok
18h 5m
including layover
Find flight
from$416
01:40 — 12:10
+1 day
00:10 — 05:20 CI21 China Airlines
Seattle — Taipei
4h 20m stop
10:05 — 13:05 CI831 China Airlines
Taipei — Bangkok
20h 30m
including layover
Find flight
from$416
01:40 — 16:20
+1 day
00:10 — 05:20 CI21 China Airlines
Seattle — Taipei
8h 25m stop
13:50 — 16:45 CI835 China Airlines
Taipei — Bangkok
24h 40m
including layover
Find flight
from$416
01:40 — 01:25
+2 days
00:10 — 05:20 CI21 China Airlines
Seattle — Taipei
17h 35m stop
22:30 — 01:35 CI837 China Airlines
Taipei — Bangkok
33h 45m
including layover
Find flight
from$416
13:20 — 21:45
+1 day
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
1h 25m stop
17:20 — 21:30 KE651 Korean Air
Seoul — Bangkok
18h 25m
including layover
Find flight
from$418
13:20 — 23:25
+2 days
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
3h 5m stop
20:35 — 00:45 KE659 Korean Air
Seoul — Bangkok
20h 5m
including layover
Find flight
from$418
13:20 — 01:05
+2 days
12:50 — 16:40 KE42 Korean Air
Seattle — Seoul
4h 35m stop
21:15 — 01:05 KE655 Korean Air
Seoul — Bangkok
21h 45m
including layover
Find flight
from$418
13:20 — 13:15
+2 days
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
16h 50m stop
09:15 — 13:15 KE657 Korean Air
Seoul — Bangkok
33h 55m
including layover
Find flight
from$418
13:20 — 23:10
+2 days
12:50 — 16:40 KE42 Korean Air
Seattle — Seoul
2h 50m stop
19:30 — 23:10 OZ741 Asiana Airlines
Seoul — Bangkok
19h 50m
including layover
Find flight
from$419
14:30 — 23:10
+2 days
14:15 — 17:55 OZ271 Asiana Airlines
Seattle — Seoul
1h 35m stop
19:30 — 23:10 OZ741 Asiana Airlines
Seoul — Bangkok
18h 40m
including layover
Find flight
from$353
14:30 — 23:25
+2 days
12:40 — 17:50 OZ271 Asiana Airlines
Seattle — Seoul
1h 50m stop
20:35 — 00:45 KE659 Korean Air
Seoul — Bangkok
18h 55m
including layover
Find flight
from$456
16:30 — 06:00
+2 days
15:45 — 19:15 NH117 All Nippon Airways
Seattle — Tokyo
6h 30m stop
01:30 — 06:35 NH877 All Nippon Airways
Tokyo — Bangkok
23h 30m
including layover
Find flight
from$416
16:30 — 15:30
+2 days
15:40 — 19:15 NH117 All Nippon Airways
Seattle — Tokyo
15h 50m stop
11:05 — 16:20 NH847 All Nippon Airways
Tokyo — Bangkok
33h
including layover
Find flight
from$416
*Departure and arrival times - local. Updated on September 11, 2025

Flight Information

Below we will explain in detail what the flights cost on the destination from Seattle to Bangkok depends on and how to choose the most interesting flight option for you.

Distance between Seattle and Bangkok is 11989 miles. Time difference between the cities is 3h. Airplanes depart 01:10 to 23:30 from 3 Seattle airports and arrive 01:10 to 23:30 to 2 Bangkok airports. Average flight time is 29h 10m.

  • The fastest flight 18h 5m
  • Average flight time 29h 10m
  • The earliest flight 01:10
  • The latest flight 23:30
  • Distance 7450 ml

Popular Airlines on the Route

The flight Seattle — Bangkok is served by 24 regular airlines and 3 low-cost airlines. Most of the flights on this route are operated by Qatar Airways - 6 departures per week at the price of from $ 560 . And the most expensive tickets are offered by Malaysia Airlines airline - from $ 8857.

Direct flights

There’re no direct flights on this route. Try flights with stops.

Connecting Flights

There are 271 flights with layovers on the route. The fastest connecting flight is CI21 by China Airlines takes 18h 5m.

  • QR - Qatar Airways
    from $560
    Find
  • DE - Condor Airlines
    from $1121
    Find
  • KL - KLM
    from $1175
    Find
  • JL - Japan Airlines - JAL
    from $580
    Find
  • AC - Air Canada
    from $605
    Find
  • AF - Air France
    from $1193
    Find
  • CI - China Airlines
    from $416
    Find
  • EK - Emirates
    from $995
    Find
  • OZ - Asiana Airlines
    from $353
    Find
  • UA - United Airlines
    from $511
    Find
  • LX - SWISS International Air Lines
    from $5259
    Find
  • HU - Hainan Airlines
    from $553
    Find
See more connecting flights

Airports

You can fly from Seattle to Bangkok from 3 airports (Boeing Field International Airport, Seattle-Tacoma Intl, Kenmore Air Harbor SPB).

Seattle airports

  • Boeing Field International Airport-BFI
    Find
  • Seattle-Tacoma Intl-SEA
    from $353
    Find
  • Kenmore Air Harbor SPB-LKE
    Find

Bangkok airports

  • Suvarnabhumi-BKK
    Find
  • Don Muang-DMK
    Find

How to book a plane ticket yourself?

How to book an air ticket yourself?
  • Fill in the search parameters — cities of departure and destination, departure and return dates and click «Find flights»
  • Select the best flight that you like. Please, check the airports of departure and arrival. Select the best fare, but pay attention to the following flight details - airports of departure and arrival, flight duration and layovers. Please use filters and sort to find the best flight.
  • Click «Buy» when you are ready — our system will redirect you to the site that sells the selected flight ticket.
  • Fill in all passenger and payment information — passport and contact information, please double check all passengers’ names and make a payment for your itinerary.
  • That's it — you will receive an email with your e-ticket usually within 10 minutes after your flight is confirmed. Please, print the e-ticket and have it with you at the airport. You would need to have only a passport and/or a required form of ID to travel. Please, check your Visa requirements if you travel outside of the United States or Canada.

    To find a plane ticket, please select dates.

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