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FCO to HLN: distance & flight time
Rome (Leonardo da Vinci–Fiumicino Airport) → Helena (Helena Regional Airport)
5,436 mi
8,749 km · 4,724 nm
11h 8m
estimated nonstop flight time
-8h
time difference · heading northwest
See live FCO→HLN fares Phone-only fares on this route — call free
Flight time details
5,436 miles nonstop takes roughly 11h 8m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time set-back when reading arrival times on your ticket.
The two airports
- FCO — Leonardo da Vinci–Fiumicino Airport · Rome, Italy
- HLN — Helena Regional Airport · Helena, 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
Near HLN
- BTM · Bert Mooney Airport51 mi away
- GTF · Great Falls International Airport67 mi away
- BZN · Gallatin Field70 mi away
- LVM · Mission Field97 mi away
Frequently asked questions
How far is FCO from HLN?
The flight distance from Rome (FCO) to Helena (HLN) is 5,436 miles (8,749 km, 4,724 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from FCO to HLN?
A nonstop flight takes about 11h 8m 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 Helena?
Helena is 8 hours behind Rome.
What is the cheapest way to fly from FCO to HLN?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on FCO–HLN that never appear on search engines, with no booking fees.