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SME to IAD: distance & flight time
Somerset (Lake Cumberland Regional Airport) → Washington (Washington Dulles International Airport)
411 mi
661 km · 357 nm
1h 22m
estimated nonstop flight time
Same time
time difference · heading east
See live SME→IAD fares Phone-only fares on this route — call free
Flight time details
411 miles nonstop takes roughly 1h 22m gate to gate, flying east. Add 45–90 minutes per connection if there's no nonstop service. Both airports share the same local time, so schedules read exactly as flown.
The two airports
- SME — Lake Cumberland Regional Airport · Somerset, United States
- IAD — Washington Dulles International Airport · Washington, United States
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 SME
- LOZ · London-Corbin Airport/Magee Field29 mi away
- LEX · Blue Grass Airport68 mi away
- GLW · Glasgow Municipal Airport74 mi away
- FFT · Capital City Airport80 mi away
Frequently asked questions
How far is SME from IAD?
The flight distance from Somerset (SME) to Washington (IAD) is 411 miles (661 km, 357 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from SME to IAD?
A nonstop flight takes about 1h 22m 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 cheapest way to fly from SME to IAD?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SME–IAD that never appear on search engines, with no booking fees.