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RML to BTM: distance & flight time
Colombo (Colombo Ratmalana Airport) → Butte (Bert Mooney Airport)
8,711 mi
14,019 km · 7,570 nm
17h 33m
estimated nonstop flight time
-11.5h
time difference · heading north
See live RML→BTM fares Phone-only fares on this route — call free
Flight time details
8,711 miles nonstop takes roughly 17h 33m 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 set-back when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- BTM — Bert Mooney Airport · Butte, 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 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
Near BTM
- HLN · Helena Regional Airport51 mi away
- BZN · Gallatin Field66 mi away
- SMN · Lemhi County Airport88 mi away
- LVM · Mission Field100 mi away
Frequently asked questions
How far is RML from BTM?
The flight distance from Colombo (RML) to Butte (BTM) is 8,711 miles (14,019 km, 7,570 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to BTM?
A nonstop flight takes about 17h 33m 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 Colombo and Butte?
Butte is 11.5 hours behind Colombo.
What is the cheapest way to fly from RML to BTM?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–BTM that never appear on search engines, with no booking fees.