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DEF to GTF: distance & flight time
Dezful (Dezful Airport) → Great Falls (Great Falls International Airport)
6,774 mi
10,902 km · 5,886 nm
13h 45m
estimated nonstop flight time
-9.5h
time difference · heading north
See live DEF→GTF fares Phone-only fares on this route — call free
Flight time details
6,774 miles nonstop takes roughly 13h 45m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time set-back when reading arrival times on your ticket.
The two airports
- DEF — Dezful Airport · Dezful, Iran
- 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 DEF
- KHD · Khoram Abad Airport69 mi away
- AWZ · Ahwaz Airport79 mi away
- OMI · Omidiyeh Airport129 mi away
- MRX · Mahshahr Airport137 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 DEF from GTF?
The flight distance from Dezful (DEF) to Great Falls (GTF) is 6,774 miles (10,902 km, 5,886 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DEF to GTF?
A nonstop flight takes about 13h 45m 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 Dezful and Great Falls?
Great Falls is 9.5 hours behind Dezful.
What is the cheapest way to fly from DEF to GTF?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DEF–GTF that never appear on search engines, with no booking fees.