Need help booking?
Unpublished phone-only deals available
GTF to ISL: distance & flight time
Great Falls (Great Falls International Airport) → Istanbul (Atatürk International Airport)
5,856 mi
9,424 km · 5,089 nm
11h 57m
estimated nonstop flight time
+9h
time difference · heading northeast
See live GTF→ISL fares Phone-only fares on this route — call free
Flight time details
5,856 miles nonstop takes roughly 11h 57m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- ISL — Atatürk International Airport · Istanbul, Turkey
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 ISL
- IST · Istanbul Airport21 mi away
- SAW · Sabiha Gökçen International Airport26 mi away
- TEQ · Tekirdağ Çorlu Airport48 mi away
- BTZ · Bursa Airport52 mi away
Frequently asked questions
How far is GTF from ISL?
The flight distance from Great Falls (GTF) to Istanbul (ISL) is 5,856 miles (9,424 km, 5,089 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to ISL?
A nonstop flight takes about 11h 57m 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 Istanbul?
Istanbul is 9 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to ISL?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–ISL that never appear on search engines, with no booking fees.