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RML to SEP: distance & flight time
Colombo (Colombo Ratmalana Airport) → Stephenville (Stephenville Clark Regional Airport)
9,737 mi
15,670 km · 8,461 nm
19h 33m
estimated nonstop flight time
-10.5h
time difference · heading north
See live RML→SEP fares Phone-only fares on this route — call free
Flight time details
9,737 miles nonstop takes roughly 19h 33m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time set-back when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- SEP — Stephenville Clark Regional Airport · Stephenville, 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 SEP
- MWL · Mineral Wells Airport40 mi away
- DFW · Dallas Fort Worth International Airport81 mi away
- BKD · Stephens County Airport54 mi away
- FWH · NAS Fort Worth JRB/Carswell Field57 mi away
Frequently asked questions
How far is RML from SEP?
The flight distance from Colombo (RML) to Stephenville (SEP) is 9,737 miles (15,670 km, 8,461 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to SEP?
A nonstop flight takes about 19h 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 Stephenville?
Stephenville is 10.5 hours behind Colombo.
What is the cheapest way to fly from RML to SEP?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–SEP that never appear on search engines, with no booking fees.