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GTF to RML: distance & flight time
Great Falls (Great Falls International Airport) → Colombo (Colombo Ratmalana Airport)
8,622 mi
13,876 km · 7,492 nm
17h 22m
estimated nonstop flight time
+11.5h
time difference · heading north
See live GTF→RML fares Phone-only fares on this route — call free
Flight time details
8,622 miles nonstop takes roughly 17h 22m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 11.5-hour time gain when reading arrival times on your ticket.
The two airports
- GTF — Great Falls International Airport · Great Falls, United States
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
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 RML
- CMB · Bandaranaike International Colombo Airport25 mi away
- KCT · Koggala Airport65 mi away
- HRI · Mattala Rajapaksa International Airport93 mi away
- GIU · Sigiriya Air Force Base97 mi away
Frequently asked questions
How far is GTF from RML?
The flight distance from Great Falls (GTF) to Colombo (RML) is 8,622 miles (13,876 km, 7,492 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GTF to RML?
A nonstop flight takes about 17h 22m 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 Colombo?
Colombo is 11.5 hours ahead of Great Falls.
What is the cheapest way to fly from GTF to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GTF–RML that never appear on search engines, with no booking fees.