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GTF to OOM: distance & flight time
Great Falls (Great Falls International Airport) → Cooma (Cooma Snowy Mountains Airport)
8,419 mi
13,549 km · 7,316 nm
16h 58m
estimated nonstop flight time
+16h
time difference · heading west
See live GTF→OOM fares Phone-only fares on this route — call free
Flight time details
8,419 miles nonstop takes roughly 16h 58m gate to gate, flying west. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 16-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- OOM — Cooma Snowy Mountains Airport · Cooma, 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 OOM
- CYG · Corryong Airport61 mi away
- MIM · Merimbula Airport66 mi away
- CBR · Canberra International Airport70 mi away
- MYA · Moruya Airport71 mi away
Frequently asked questions
How far is GTF from OOM?
The flight distance from Great Falls (GTF) to Cooma (OOM) is 8,419 miles (13,549 km, 7,316 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to OOM?
A nonstop flight takes about 16h 58m 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 Cooma?
Cooma is 16 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to OOM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–OOM that never appear on search engines, with no booking fees.