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STK to RML: distance & flight time
Sterling (Sterling Municipal Airport) → Colombo (Colombo Ratmalana Airport)
9,153 mi
14,730 km · 7,954 nm
18h 25m
estimated nonstop flight time
+11.5h
time difference · heading north
See live STK→RML fares Phone-only fares on this route — call free
Flight time details
9,153 miles nonstop takes roughly 18h 25m 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
- STK — Sterling Municipal Airport · Sterling, 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 STK
- AKO · Colorado Plains Regional Airport30 mi away
- SNY · Sidney Municipal-Lloyd W Carr Field37 mi away
- DEN · Denver International Airport91 mi away
- GXY · Greeley–Weld County Airport73 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 STK from RML?
The flight distance from Sterling (STK) to Colombo (RML) is 9,153 miles (14,730 km, 7,954 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from STK to RML?
A nonstop flight takes about 18h 25m 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 Sterling and Colombo?
Colombo is 11.5 hours ahead of Sterling.
What is the cheapest way to fly from STK to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on STK–RML that never appear on search engines, with no booking fees.