Cheap Flights from Seattle, WA to Bangkok from $428

Return flight: Bangkok – Seattle

On Cheapflightsplus.com you will find 395 connecting flights from Seattle to Bangkok. You can compare airfare deals from 21 airlines and multiple travel sites from $428, 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: $428 (one-way), $734 (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
00:10 — 16:45
+1 day
00:10 — 05:20 CI21 China Airlines
Seattle — Taipei
8h 30m stop
13:50 — 16:45 CI835 China Airlines
Taipei — Bangkok
25h 35m
including layover
Find flight
from$482
00:10 — 09:50
+1 day
00:10 — 05:20 CI21 China Airlines
Seattle — Taipei
1h 40m stop
07:00 — 09:50 CI833 China Airlines
Taipei — Bangkok
18h 40m
including layover
Find flight
from$489
05:45 — 06:15
+2 days
05:45 — 06:52 AC8801 Air Canada
Seattle — Vancouver
15h 53m stop
22:45 — 06:15 AC65 Air Canada
Vancouver — Bangkok
33h 30m
including layover
Find flight
from$743
08:40 — 08:15
+2 days
08:40 — 17:40 SQ27 Singapore Airlines
Seattle — Singapore
13h stop
06:40 — 08:15 SQ8614 Singapore Airlines
Singapore — Bangkok
32h 35m
including layover
Find flight
from$587
08:40 — 14:25
+2 days
08:40 — 17:40 SQ27 Singapore Airlines
Seattle — Singapore
19h 15m stop
12:55 — 14:25 SQ8612 Singapore Airlines
Singapore — Bangkok
38h 45m
including layover
Find flight
from$587
10:50 — 23:20
+1 day
10:35 — 16:15 KE5020 Korean Air
Seattle — Seoul
2h 50m stop
19:05 — 23:20 KE653 Korean Air
Seoul — Bangkok
21h 30m
including layover
Find flight
from$559
10:50 — 00:45
+2 days
10:35 — 16:15 KE5020 Korean Air
Seattle — Seoul
4h 20m stop
20:35 — 00:45 KE659 Korean Air
Seoul — Bangkok
22h 55m
including layover
Find flight
from$559
11:00 — 21:30
+1 day
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
1h 25m stop
17:20 — 21:30 KE651 Korean Air
Seoul — Bangkok
19h 30m
including layover
Find flight
from$441
11:00 — 23:20
+1 day
11:00 — 15:55 KE42 Korean Air
Seattle — Seoul
3h 10m stop
19:05 — 23:20 KE653 Korean Air
Seoul — Bangkok
21h 20m
including layover
Find flight
from$441
12:30 — 23:35
+1 day
12:10 — 15:40 AS7323 Alaska Airlines
Seattle — Tokyo
2h 45m stop
18:25 — 23:35 AS7339 Alaska Airlines
Tokyo — Bangkok
20h 5m
including layover
Find flight
from$635
12:45 — 00:20
+2 days
12:40 — 17:50 OZ271 Asiana Airlines
Seattle — Seoul
2h 30m stop
20:20 — 00:20 OZ743 Asiana Airlines
Seoul — Bangkok
20h 35m
including layover
Find flight
from$428
15:45 — 05:10
+2 days
12:30 — 14:50 NH117 All Nippon Airways
Seattle — Tokyo
4h 50m stop
00:05 — 04:35 NH849 All Nippon Airways
Tokyo — Bangkok
22h 25m
including layover
Find flight
from$500
15:45 — 06:35
+2 days
15:45 — 19:15 NH117 All Nippon Airways
Seattle — Tokyo
6h 15m stop
01:30 — 06:35 NH877 All Nippon Airways
Tokyo — Bangkok
23h 50m
including layover
Find flight
from$500
16:05 — 06:40
+2 days
17:30 — 17:40 QR720 Qatar Airways
Seattle — Doha
2h 40m stop
19:55 — 07:05 QR830 Qatar Airways
Doha — Bangkok
23h 35m
including layover
Find flight
from$747
16:05 — 12:50
+2 days
16:05 — 17:40 QR720 Qatar Airways
Seattle — Doha
8h 50m stop
02:30 — 12:50 QR836 Qatar Airways
Doha — Bangkok
29h 45m
including layover
Find flight
from$747
22:35 — 12:20
+2 days
22:35 — 04:45 PR125 Philippine Airlines
Seattle — Manila
5h stop
09:45 — 12:20 PR730 Philippine Airlines
Manila — Bangkok
22h 45m
including layover
Find flight
from$524
22:35 — 17:45
+2 days
22:35 — 04:45 PR125 Philippine Airlines
Seattle — Manila
10h 20m stop
15:05 — 17:45 PR736 Philippine Airlines
Manila — Bangkok
28h 10m
including layover
Find flight
from$524
23:30 — 16:50
+2 days
23:30 — 04:40 TG6250 Thai Airways
Seattle — Taipei
9h 15m stop
13:55 — 16:50 TG633 Thai Airways
Taipei — Bangkok
26h 20m
including layover
Find flight
from$618
23:30 — 11:10
+2 days
23:30 — 04:40 BR23 EVA Airways Corporation
Seattle — Taipei
3h 25m stop
08:05 — 11:10 BR67 EVA Airways Corporation
Taipei — Bangkok
20h 40m
including layover
Find flight
from$680
*Departure and arrival times - local. Updated on January 15, 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 00:05 to 23:59 from 3 Seattle airports and arrive 00:05 to 23:59 to 2 Bangkok airports. Average flight time is 28h 40m.

  • The fastest flight 18h 40m
  • Average flight time 28h 40m
  • The earliest flight 00:05
  • The latest flight 23:59
  • Distance 7450 ml

The cheapest months to travel to Bangkok are november (from 415 $), february (from 428 $), january (from 482 $).

The most expensive months are december (from 628 $), january (from 482 $), february (from 428 $).

What is the lowest airfare Seattle to Bangkok?

The cheapest plane ticket found by our users is $428. This airfare is for economy class on one-way OZ271 flight by Asiana Airlines for February 21, 2025 which leaves Seattle-Tacoma Intl in Seattle at 12:45 am and arrives at Bangkok Suvarnabhumi at 00:20.

Economy class
$428
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Business class
?
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First class
?
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Popular Airlines on the Route

The flight Seattle — Bangkok is served by 21 regular airline and 5 low-cost airlines. Most of the flights on this route are operated by Qatar Airways - 9 departures per week at the price of from $ 747 . And the most expensive tickets are offered by Asiana Airlines airline - from $ 4853.

Direct flights

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

Connecting Flights

There are 395 flights with layovers on the route. The fastest connecting flight is CI21 by China Airlines takes 18h 40m and the cheapest is OZ271 by Asiana Airlines for $428.

  • QR - Qatar Airways
    from $747
    Find
  • PR - Philippine Airlines
    from $524
    Find
  • AC - Air Canada
    from $722
    Find
  • JL - Japan Airlines - JAL
    from $787
    Find
  • CI - China Airlines
    from $482
    Find
  • OZ - Asiana Airlines
    from $428
    Find
  • UA - United Airlines
    from $549
    Find
  • HU - Hainan Airlines
    from $716
    Find
  • JX - Jambojet
    from $616
    Find
  • BR - EVA Airways Corporation
    from $518
    Find
  • AS - Alaska Airlines
    from $517
    Find
  • F9 - Frontier Airlines
    from $574
    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 $428
    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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