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IAD to SSN: distance & flight time
Washington (Washington Dulles International Airport) → Seoul East (Seoul Air Base (K-16))
6,933 mi
11,157 km · 6,024 nm
14h 4m
estimated nonstop flight time
+13h
time difference · heading north
See live IAD→SSN fares Phone-only fares on this route — call free
Flight time details
6,933 miles nonstop takes roughly 14h 4m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 13-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- SSN — Seoul Air Base (K-16) · Seoul East, South Korea
Distances are great-circle ("as the crow flies") — the same basis airlines use for frequent-flyer miles.
Alternate airports can cut this fare
Flying from or into a nearby airport is the #1 trick our agents use to beat online prices. Call and we'll compare every combination on one call.
Near IAD
Near SSN
- ICN · Incheon International Airport36 mi away
- SWU · Suwon Airport15 mi away
- GMP · Gimpo International Airport19 mi away
- OSN · Osan Air Base25 mi away
Frequently asked questions
How far is IAD from SSN?
The flight distance from Washington (IAD) to Seoul East (SSN) is 6,933 miles (11,157 km, 6,024 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to SSN?
A nonstop flight takes about 14h 4m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
What is the time difference between Washington and Seoul East?
Seoul East is 13 hours ahead of Washington.
What is the cheapest way to fly from IAD to SSN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–SSN that never appear on search engines, with no booking fees.