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IAD to DCI: distance & flight time
Washington (Washington Dulles International Airport) → Decimomannu (Decimomannu Air Base)
4,432 mi
7,133 km · 3,851 nm
9h 9m
estimated nonstop flight time
+6h
time difference · heading northeast
See live IAD→DCI fares Phone-only fares on this route — call free
Flight time details
4,432 miles nonstop takes roughly 9h 9m 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
- DCI — Decimomannu Air Base · Decimomannu, 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 DCI
- CAG · Cagliari Elmas Airport8 mi away
- FNU · Oristano-Fenosu Airport41 mi away
- TTB · Tortolì Airport54 mi away
- AHO · Alghero-Fertilia Airport95 mi away
Frequently asked questions
How far is IAD from DCI?
The flight distance from Washington (IAD) to Decimomannu (DCI) is 4,432 miles (7,133 km, 3,851 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IAD to DCI?
A nonstop flight takes about 9h 9m 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 Decimomannu?
Decimomannu is 6 hours ahead of Washington.
What is the cheapest way to fly from IAD to DCI?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IAD–DCI that never appear on search engines, with no booking fees.