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IAD to SFZ: distance & flight time
Washington (Washington Dulles International Airport) → Smithfield (North Central State Airport)
375 mi
603 km · 326 nm
1h 27m
estimated nonstop flight time
Same time
time difference · heading northeast
See live IAD→SFZ fares Phone-only fares on this route — call free
Flight time details
375 miles nonstop takes roughly 1h 27m gate to gate, flying northeast. 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
- IAD — Washington Dulles International Airport · Washington, United States
- SFZ — North Central State Airport · Smithfield, 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 IAD
Near SFZ
- BOS · General Edward Lawrence Logan International Airport39 mi away
- PVD · Theodore Francis Green State Airport14 mi away
- NCO · Quonset State Airport23 mi away
- OWD · Norwood Memorial Airport25 mi away
Frequently asked questions
How far is IAD from SFZ?
The flight distance from Washington (IAD) to Smithfield (SFZ) is 375 miles (603 km, 326 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to SFZ?
A nonstop flight takes about 1h 27m 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 IAD to SFZ?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–SFZ that never appear on search engines, with no booking fees.