Dulles (IAD) to Seoul (ICN)
Flight time
≈ 14h 41m
Bearing
341° N
Dulles (IAD) to Seoul (ICN) is 6,943 miles (11,173 km) as the crow flies — the great-circle baseline most distance-based mileage programs credit.
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What actually flies IAD–ICN
US DOT T-100 · filed dataIn April 2026, Korean Air was the only carrier flying nonstop IAD–ICN; the Boeing 777-300ER was the most common aircraft at 100% of departures; flights ran 89% full.
Departures
60
April 2026
Seats
16,648
both directions
Passengers
14,818
both directions
Load factor
89.0%
passengers ÷ seats
Who flies IAD–ICN?
Korean Air was the only carrier to fly nonstop IAD–ICN in April 2026 (60 departures).
- KE
Korean Air
60 departures · 16,648 seats
Share of departures100.0%89.0%
Load
What plane flies IAD–ICN?
In April 2026, the Boeing 777-300ER flew 100% of IAD–ICN departures.
- Boeing 777-300ER
60 departures · 89.0% load
100.0%
How has IAD–ICN traffic changed?
Nonstop IAD–ICN departures fell from 62 in May 2025 to 60 in April 2026.
Monthly nonstop IAD–ICN traffic, trailing 12 months through April 2026. Bars scale to the busiest month; months with no filed service show as zero.
May 2025
62 departures · 14,452 passengers
84.0%
Load
June 2025
60 departures · 14,508 passengers
87.3%
Load
July 2025
62 departures · 14,284 passengers
83.2%
Load
August 2025
60 departures · 14,706 passengers
88.2%
Load
September 2025
60 departures · 14,042 passengers
84.5%
Load
October 2025
61 departures · 14,197 passengers
84.0%
Load
November 2025
60 departures · 14,387 passengers
86.6%
Load
December 2025
61 departures · 14,671 passengers
86.7%
Load
January 2026
60 departures · 14,468 passengers
87.1%
Load
February 2026
56 departures · 12,778 passengers
82.4%
Load
March 2026
62 departures · 15,992 passengers
93.1%
Load
April 2026
60 departures · 14,818 passengers
89.0%
Load
By direction
The DOT files each direction separately — they rarely match.
IAD → ICN
85.9% full
30 departures · 7,153 passengers
ICN → IAD
92.1% full
30 departures · 7,665 passengers
Nonstop IAD–ICN traffic has been filed with the US DOT since 2025.
Source: US DOT BTS Form 41 T-100 Segment (All Carriers). Data through April 2026; filings from 2025. Public domain (US Government work). The DOT publishes roughly three months in arrears.
The airports
Seoul
KR
Incheon International Airport
Coordinates
37.47°N, 126.45°E
Hemisphere
N · E
Frequently asked
How far is Dulles (IAD) from Seoul (ICN)?
IAD to ICN is 6,943 miles (11,173 km / 6,033 nautical miles) measured great-circle — the shortest path over the surface of the Earth.
How long is the flight from IAD to ICN?
A nonstop covers the 6,943-mile great-circle distance in roughly 14h 41m of block time, before winds. Actual schedules vary a few percent by direction and aircraft.
What plane flies IAD–ICN?
In April 2026, the Boeing 777-300ER flew the largest share of departures (100.0%).
What mileage do I earn flying IAD–ICN?
Distance-based programs credit off the 6,943-mile great-circle figure, then apply your fare-class earning rate. Revenue-based programs credit off the fare instead.
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