Seattle/Tacoma Intl
Incheon Intl
2 stops
42h 45mPhilippine Airlines
New York John F Kennedy Intl
Incheon Intl
1 stop
30h 45mUzbekistan Airways
New York John F Kennedy Intl
Incheon Intl
1 stop
36h 20mXiamenAir
New York John F Kennedy Intl
Incheon Intl
1 stop
32h 00mAir India
Seattle/Tacoma Intl
Incheon Intl
1 stop
20h 30mKorean Air
Los Angeles
Seoul Gimpo Intl
2 stops
24h 25mMultiple Airlines
Seattle/Tacoma Intl
Incheon Intl
2 stops
47h 48mIncheon Intl
Seattle/Tacoma Intl
1 stop
27h 05mPhilippine Airlines
San Francisco
Incheon Intl
1 stop
30h 30mIncheon Intl
San Francisco
1 stop
34h 35mTurkish Airlines
New York John F Kennedy Intl
Incheon Intl
1 stop
28h 50mIncheon Intl
New York John F Kennedy Intl
1 stop
37h 45mUzbekistan Airways
Los Angeles
Incheon Intl
1 stop
20h 35mIncheon Intl
Los Angeles
2 stops
23h 10mMultiple Airlines
Los Angeles
Incheon Intl
1 stop
17h 10mIncheon Intl
Los Angeles
1 stop
23h 35mHawaiian Airlines
Seattle/Tacoma Intl
Incheon Intl
Nonstop
11h 40mIncheon Intl
Seattle/Tacoma Intl
Nonstop
10h 45mKorean 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.