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SAY to GTF: distance & flight time
Siena (Siena-Ampugnano Airport) → Great Falls (Great Falls International Airport)
5,260 mi
8,465 km · 4,571 nm
10h 47m
estimated nonstop flight time
-8h
time difference · heading northwest
See live SAY→GTF fares Phone-only fares on this route — call free
Flight time details
5,260 miles nonstop takes roughly 10h 47m 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
- SAY — Siena-Ampugnano Airport · Siena, Italy
- GTF — Great Falls International Airport · Great Falls, 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 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
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
Frequently asked questions
How far is SAY from GTF?
The flight distance from Siena (SAY) to Great Falls (GTF) 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 SAY to GTF?
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 Siena and Great Falls?
Great Falls is 8 hours behind Siena.
What is the cheapest way to fly from SAY to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on SAY–GTF that never appear on search engines, with no booking fees.