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ART to RML: distance & flight time
Watertown (Watertown International Airport) → Colombo (Colombo Ratmalana Airport)
8,618 mi
13,869 km · 7,488 nm
17h 22m
estimated nonstop flight time
+9.5h
time difference · heading northeast
See live ART→RML fares Phone-only fares on this route — call free
Flight time details
8,618 miles nonstop takes roughly 17h 22m gate to gate, flying northeast. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time gain when reading arrival times on your ticket.
The two airports
- ART — Watertown International Airport · Watertown, 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 ART
- YGK · Kingston Norman Rogers Airport33 mi away
- OGS · Ogdensburg International Airport55 mi away
- RME · Griffiss International Airport61 mi away
- SYR · Syracuse Hancock International Airport61 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 ART from RML?
The flight distance from Watertown (ART) to Colombo (RML) is 8,618 miles (13,869 km, 7,488 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from ART 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 Watertown and Colombo?
Colombo is 9.5 hours ahead of Watertown.
What is the cheapest way to fly from ART to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on ART–RML that never appear on search engines, with no booking fees.