Need help booking?
Unpublished phone-only deals available
RML to CTB: distance & flight time
Colombo (Colombo Ratmalana Airport) → Cutbank (Cut Bank International Airport)
8,535 mi
13,736 km · 7,417 nm
17h 12m
estimated nonstop flight time
-11.5h
time difference · heading north
See live RML→CTB fares Phone-only fares on this route — call free
Flight time details
8,535 miles nonstop takes roughly 17h 12m 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
- CTB — Cut Bank International Airport · Cutbank, 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 CTB
- YQL · Lethbridge County Airport73 mi away
- FCA · Glacier Park International Airport89 mi away
- GTF · Great Falls International Airport91 mi away
- WPC · Pincher Creek Airport97 mi away
Frequently asked questions
How far is RML from CTB?
The flight distance from Colombo (RML) to Cutbank (CTB) is 8,535 miles (13,736 km, 7,417 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to CTB?
A nonstop flight takes about 17h 12m 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 Cutbank?
Cutbank is 11.5 hours behind Colombo.
What is the cheapest way to fly from RML to CTB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–CTB that never appear on search engines, with no booking fees.