Flights from Seattle Tacoma to Seoul Incheon

Our cheapest offers for flights from Seattle Tacoma to Seoul Incheon

Here you can compare cheap flights from Seattle Tacoma (SEA) to Seoul Incheon (ICN) 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 Seoul Incheon. Prices and availability may change at any time.

Outbound Return Airlines Shop Baggage Price
Seattle-Tacoma
Seoul Incheon
Outbound
09/19/25
1 Stopover (TPE)
CI0021, CI0162
26h 25min
Return
09/29/25
1 Stopover (TPE)
CI0163, CI0022
14h 45min
China Airlines
$812
Best option
Seattle-Tacoma
Seoul Incheon
Outbound
10/18/25
direct
AS8471
11h 40min
Return
11/17/25
direct
AS8472
09h 50min
Alaska Airlines ?
$906
Seattle-Tacoma
Seoul Incheon
Pay attention to transfer at connecting flight
Outbound
07/25/25
1 Stopover (YYC)
WS1551, WS0086
19h 40min
Return
08/17/25
3 Stopovers (NRT, SJC, LAS)
7C1101, ZG0030, NK1371, NK0781
47h 23min
Westjet
$1,151
Seattle-Tacoma
Seoul Incheon
Outbound
09/19/25
1 Stopover (TPE)
CI0021, CI0162
26h 25min
Return
09/29/25
1 Stopover (TPE)
CI0163, CI0022
14h 45min
China Airlines
$818
Seattle-Tacoma
Seoul Incheon
Outbound
09/19/25
1 Stopover (TPE)
CI0021, CI0160
18h 05min
Return
09/29/25
1 Stopover (TPE)
CI0163, CI0022
14h 45min
China Airlines
$824
Seattle-Tacoma
Seoul Incheon
Outbound
09/19/25
1 Stopover (TPE)
CI0021, CI0162
26h 25min
Return
09/29/25
1 Stopover (TPE)
CI0163, CI0022
14h 45min
China Airlines ?
$835
Seattle-Tacoma
Seoul Incheon
Outbound
10/18/25
1 Stopover (LAS)
KE3049, KE0006
21h 45min
Return
11/17/25
direct
KE0041
09h 50min
Korean Air ?
$899
Seattle-Tacoma
Seoul Incheon
Outbound
10/18/25
direct
AS8471
11h 40min
Return
11/17/25
direct
AS8472
09h 50min
Alaska Airlines ?
$923
Seattle-Tacoma
Seoul Incheon
Outbound
10/18/25
direct
AS8471
11h 40min
Return
11/17/25
direct
AS8472
09h 50min
Alaska Airlines
$930
Seattle-Tacoma
Seoul Incheon
Outbound
09/04/25
1 Stopover (TPE)
BR0025, BR0170
17h 30min
Return
09/28/25
1 Stopover (TPE)
BR0159, BR0026
15h 45min
EVA Airways ?
$939
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 Seoul Incheon

Favorite airline: Turkish Airlines
59 % of flights booked on the route from Seattle-Tacoma to Seoul Incheon are booked with Turkish Airlines, Korean Air and Asiana Airlines.
Turkish Airlines
37 %
Korean Air
11 %
Asiana Airlines
11 %
Direct flights are more expensive
Compared to flights with a stopover, direct flights are $178.00 more expensive on this route.
non stop flight
1 stop
2 stops
11h 25min
31h 15min
30h 30min
1.225 $
1.047 $
4.882 $
Favourite connection: via Istanbul
When booking flights from Seattle-Tacoma to Seoul Incheon 70 % of travelers prefer to fly via Istanbul.
Route
bookings
1 stopover Istanbul
31h 15min, from 1.047 $
70 %
1 stopover Honolulu International Airport, HI
19h 25min, from 1.080 $
20 %
2 stopovers Tokyo-Narita International Airport Tokyo-Haneda International Airport Fukuoka
30h 30min, from 4.882 $
10 %

Important flight information

Flight information: Seattle-Tacoma - Seoul Incheon

Roundtrip from 811,68 $
Flight duration min. 11:50 / max. 12:14
Return flight duration min. 09:55/ max. 10:38
Distance 8382 km
Flights per week 20
Departure airport Airport Seattle-Tacoma International Airport, WA (SEA)
Arrival airport Airport Seoul-Incheon International Airport (ICN)
Destination country Flights to South Korea
Alternative flights to Seoul Incheon
Flight destinations with a similar price
Flight destinations with a similar price