Flights from Seattle Tacoma to Bangkok

Our cheapest offers for flights from Seattle Tacoma to Bangkok

Here you can compare cheap flights from Seattle Tacoma (SEA) to Bangkok (BKK) for one-way or return trips. The following offers were searched for and found on idealo during the last few days. Or start your own flight search to Bangkok. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Seattle-Tacoma
Bangkok
Outbound
08/26/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 40min
Return
-
Asiana Airlines ?
$344
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (SIN)
SQ0027, SQ0720
19h 45min
Return
11/17/25
1 Stopover (SIN)
SQ0707, SQ0028
34h 10min
Singapore Airlines ?
$710
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0743
30h 40min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines
$735
Best option
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 55min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines
$761
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0743
30h 40min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines
$737
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 55min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines ?
$762
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 55min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines ?
$769
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 55min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines
$778
Seattle-Tacoma
Bangkok
Outbound
10/18/25
2 Stopovers (LAX, ICN)
KE3020, KE0018, KE0659
37h 10min
Return
11/17/25
2 Stopovers (ICN, SFO)
KE0652, KE0023, KE3084
32h 05min
Korean Air
$781
Seattle-Tacoma
Bangkok
Outbound
10/18/25
1 Stopover (ICN)
OZ0271, OZ0741
18h 55min
Return
11/17/25
1 Stopover (ICN)
OZ0742, OZ0272
29h 00min
Asiana Airlines ?
$825
Prices based on recent searches, subject to last-minute changes
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Tips and tricks to help you find cheap flights from Seattle Tacoma to Bangkok

Favorite airline: Korean Air
Flight tickets on the route Seattle-Tacoma – Bangkok are most frequently booked with Korean Air.
Korean Air
33 %
Singapore Airlines
29 %
Delta
10 %
Favourite connection: via Seoul Incheon
47 % of booked tickets on this route are for flights with a transfer in Seoul Incheon.
Route
bookings
1 stopover Seoul-Incheon International Airport
20h 50min, from 935 $
47 %
1 stopover Singapore-Changi Airport
38h 05min, from 856 $
35 %
2 stopovers San Francisco International Airport, CA Seoul-Incheon International Airport
26h 25min, from 1.018 $
12 %

Important flight information

Flight information: Seattle-Tacoma - Bangkok

Cheapest outbound flight from 343,60 $
Roundtrip from 709,39 $
Distance 12001 km
Departure airport Airport Seattle-Tacoma International Airport, WA (SEA)
Arrival airport Airport Bangkok International Airport (BKK)
Destination country Flights to Thailand
Alternative flights to Bangkok
Flight destinations with a similar price
Flight destinations with a similar price