There are several airlines that operate frequent flights from Washington D.C. (BWI) to Seoul (ICN) including

• Delta Air Lines with 62 flights a week
• United Airlines with 34 flights a week
• American Airlines with 21 flights a week
• Korean Air with 15 flights a week
• Air Canada with 9 flights a week

The earliest flight leaves Baltimore Washington Intl. Thurgood Marshall Airport at 05:25 and arrives at Incheon Intl. Airport at 14:50. The last flight of the day departs Washington D.C. at 13:20 and arrives at Seoul at 18:25.

The flight distance from Washington D.C. to Seoul is about 12071 km, the shortest flight is 16 hours 05 minutes with United Airlines."

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