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GTF to MGB: distance & flight time
Great Falls (Great Falls International Airport) → Mount Gambier (Mount Gambier Airport)
8,840 mi
14,227 km · 7,682 nm
17h 48m
estimated nonstop flight time
+15.5h
time difference · heading west
See live GTF→MGB fares Phone-only fares on this route — call free
Flight time details
8,840 miles nonstop takes roughly 17h 48m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 15.5-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- MGB — Mount Gambier Airport · Mount Gambier, Australia
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 MGB
- NAC · Naracoorte Airport53 mi away
- PTJ · Portland Airport54 mi away
- HLT · Hamilton Airport70 mi away
- WMB · Warrnambool Airport98 mi away
Frequently asked questions
How far is GTF from MGB?
The flight distance from Great Falls (GTF) to Mount Gambier (MGB) is 8,840 miles (14,227 km, 7,682 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to MGB?
A nonstop flight takes about 17h 48m 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 Mount Gambier?
Mount Gambier is 15.5 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to MGB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–MGB that never appear on search engines, with no booking fees.