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IAD to FCO: distance & flight time
Washington (Washington Dulles International Airport) → Rome (Leonardo da Vinci–Fiumicino Airport)
4,494 mi
7,232 km · 3,905 nm
9h 17m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→FCO fares Phone-only fares on this route — call free
Flight time details
4,494 miles nonstop takes roughly 9h 17m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 6-hour time gain when reading arrival times on your ticket.
The two airports
- IAD — Washington Dulles International Airport · Washington, United States
- FCO — Leonardo da Vinci–Fiumicino Airport · Rome, Italy
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 FCO
Frequently asked questions
How far is IAD from FCO?
The flight distance from Washington (IAD) to Rome (FCO) is 4,494 miles (7,232 km, 3,905 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to FCO?
A nonstop flight takes about 9h 17m 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 Rome?
Rome is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to FCO?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–FCO that never appear on search engines, with no booking fees.