Los Angeles
Incheon Intl
1 stop
20h 35mXiamenAir
New York John F Kennedy Intl
Incheon Intl
1 stop
30h 45mUzbekistan Airways
Los Angeles
Incheon Intl
1 stop
27h 45mPhilippine Airlines
Seattle/Tacoma Intl
Incheon Intl
Nonstop
11h 25mAsiana Airlines
Seattle/Tacoma Intl
Incheon Intl
1 stop
20h 30mKorean Air
New York John F Kennedy Intl
Seoul Gimpo Intl
2 stops
22h 30mMultiple Airlines
Seattle/Tacoma Intl
Incheon Intl
1 stop
18h 15mIncheon Intl
Seattle/Tacoma Intl
1 stop
19h 11mMultiple Airlines
Seattle/Tacoma Intl
Incheon Intl
1 stop
27h 45mIncheon Intl
Seattle/Tacoma Intl
1 stop
27h 05mPhilippine Airlines
Seattle/Tacoma Intl
Incheon Intl
Nonstop
11h 25mIncheon Intl
Seattle/Tacoma Intl
Nonstop
10h 30mAsiana Airlines
New York John F Kennedy Intl
Incheon Intl
1 stop
30h 45mIncheon Intl
New York John F Kennedy Intl
1 stop
37h 45mUzbekistan Airways
San Francisco
Incheon Intl
1 stop
31h 05mIncheon Intl
San Francisco
1 stop
28h 00mTurkish Airlines
Seattle/Tacoma Intl
Incheon Intl
Nonstop
12h 25mIncheon Intl
Seattle/Tacoma Intl
Nonstop
10h 40mKorean Air
January
$3,259
February
$3,333
March
$3,177
April
$760
May
$3,887
June
$1,665
July
$2,821
August
$3,457
September
$2,214
October
$3,886
November
$2,595
December
$2,488
April is currently the cheapest month to fly business class to Seoul. At this moment in time May is the most expensive month. These prices are determined by multiple factors and booking in advance can help keep costs down if your schedule is not as flexible.