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GTF to SAY: distance & flight time
Great Falls (Great Falls International Airport) → Siena (Siena-Ampugnano Airport)
5,260 mi
8,465 km · 4,571 nm
10h 47m
estimated nonstop flight time
+8h
time difference · heading northeast
See live GTF→SAY fares Phone-only fares on this route — call free
Flight time details
5,260 miles nonstop takes roughly 10h 47m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 8-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- SAY — Siena-Ampugnano Airport · Siena, 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 GTF
- HLN · Helena Regional Airport67 mi away
- CTB · Cut Bank International Airport91 mi away
- LWT · Lewistown Municipal Airport94 mi away
- HVR · Havre City County Airport104 mi away
Near SAY
- GRS · Grosseto Air Base36 mi away
- FLR · Peretola Airport38 mi away
- PSA · Pisa International Airport52 mi away
- EBA · Marina Di Campo Airport62 mi away
Frequently asked questions
How far is GTF from SAY?
The flight distance from Great Falls (GTF) to Siena (SAY) is 5,260 miles (8,465 km, 4,571 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to SAY?
A nonstop flight takes about 10h 47m 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 Great Falls and Siena?
Siena is 8 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to SAY?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–SAY that never appear on search engines, with no booking fees.