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Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FCO–IAD that never appear on search engines, with no booking fees.