September is by far the best month, wherein you can get cheapest flights for Seattle to Seoul. Meanwhile, is perceived as the expensive month due to the varying factors. That’s why it’s highly advised to make advanced online flight booking to save huge amounts of money.
Disclaimer - All the mentioned fares were found within last 48 hrs. The displayed fares are based on historical data and are subject to change. The fares cannot be guaranteed at the time of booking.
SEA
14:15
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
17:55
Seoul Incheon International Airport
Tue, 02 Sep 2025
SEA
12:50
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
16:40
Seoul Incheon International Airport
Tue, 02 Sep 2025
SEA
01:30
Seattle Seattle Tacoma International Airport
Thu , 04 Sep 2025
ICN
11:00
Seoul Incheon International Airport
Fri, 05 Sep 2025
SEA
02:10
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
11:00
Seoul Incheon International Airport
Tue, 02 Sep 2025
SEA
20:45
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
19:00
Seoul Incheon International Airport
Wed, 03 Sep 2025
SEA
07:05
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
18:45
Seoul Incheon International Airport
Tue, 02 Sep 2025
SEA
19:10
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
17:40
Seoul Incheon International Airport
Wed, 03 Sep 2025
SEA
01:40
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
11:15
Seoul Incheon International Airport
Tue, 02 Sep 2025
SEA
16:30
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
17:05
Seoul Incheon International Airport
Wed, 03 Sep 2025
SEA
17:15
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
11:45
Seoul Incheon International Airport
Wed, 03 Sep 2025
SEA
13:30
Seattle Seattle Tacoma International Airport
Mon , 01 Sep 2025
ICN
20:00
Seoul Incheon International Airport
Tue, 02 Sep 2025