Washington Dulles International ⇄ Seoul IAD–ICN
Airlines flew 723 flights between Washington Dulles International IAD in Washington, DC and Seoul, South Korea ICN in Seoul, KR in the twelve months to July 2026, both directions together: 174,797 passengers in 200,162 seats, 87% of them filled, and 15,039,514 pounds of freight. 6,958 miles, on 1 airline: Korean Air Lines Co. Ltd. (723).
Flights by month both directions
By month, as a table
| flights | |
|---|---|
| 1/25 | 62 |
| 2/25 | 56 |
| 3/25 | 62 |
| 4/25 | 60 |
| 5/25 | 62 |
| 6/25 | 60 |
| 7/25 | 62 |
| 8/25 | 60 |
| 9/25 | 60 |
| 10/25 | 61 |
| 11/25 | 60 |
| 12/25 | 61 |
| 1/26 | 60 |
| 2/26 | 56 |
| 3/26 | 62 |
| 4/26 | 60 |
| 5/26 | 62 |
| 6/26 | 60 |
| 7/26 | 61 |
Passengers by month
By month, as a table
| passengers | |
|---|---|
| 1/25 | 14,362 |
| 2/25 | 12,162 |
| 3/25 | 13,769 |
| 4/25 | 13,701 |
| 5/25 | 14,452 |
| 6/25 | 14,508 |
| 7/25 | 14,284 |
| 8/25 | 14,706 |
| 9/25 | 14,042 |
| 10/25 | 14,197 |
| 11/25 | 14,387 |
| 12/25 | 14,671 |
| 1/26 | 14,468 |
| 2/26 | 12,778 |
| 3/26 | 15,992 |
| 4/26 | 14,818 |
| 5/26 | 14,978 |
| 6/26 | 14,637 |
| 7/26 | 15,123 |
The airlines twelve months, both directions
| Airline | Flights | Passengers | Seats filled | Service |
|---|---|---|---|---|
| Korean Air Lines Co. Ltd. KE | 723 | 174,797 | 87% | scheduled passenger service |
The aircraft as the airlines report their types
| Aircraft | Flights | Seats a flight | Passengers |
|---|---|---|---|
| Boeing 777-300/300ER/333ER | 723 | 277 | 174,797 |
IAD → ICN this direction alone · flown January 2025 to July 2026
359 flights, 86,946 passengers in 99,250 seats, 3,645,939 pounds of freight. Korean Air Lines Co. Ltd. 359.
ICN → IAD this direction alone · flown January 2025 to July 2026
364 flights, 87,851 passengers in 100,912 seats, 11,393,575 pounds of freight. Korean Air Lines Co. Ltd. 364.
Source: the Bureau of Transportation Statistics' T-100 Segment table (all carriers). A flight is one departure performed on this segment; seats and passengers are the airlines' own monthly reports; "seats filled" is passengers divided by seats. The miles are the DOT's great-circle distance. Both ends: Washington Dulles International IAD and Seoul, South Korea ICN; all routes.