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RML to DCA: distance & flight time
Colombo (Colombo Ratmalana Airport) → Washington (Ronald Reagan Washington National Airport)
8,952 mi
14,406 km · 7,779 nm
18h 1m
estimated nonstop flight time
-9.5h
time difference · heading northwest
See live RML→DCA fares Phone-only fares on this route — call free
Flight time details
8,952 miles nonstop takes roughly 18h 1m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 9.5-hour time set-back when reading arrival times on your ticket.
The two airports
- RML — Colombo Ratmalana Airport · Colombo, Sri Lanka
- DCA — Ronald Reagan Washington National Airport · Washington, 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 DCA
Frequently asked questions
How far is RML from DCA?
The flight distance from Colombo (RML) to Washington (DCA) is 8,952 miles (14,406 km, 7,779 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to DCA?
A nonstop flight takes about 18h 1m 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 Washington?
Washington is 9.5 hours behind Colombo.
What is the cheapest way to fly from RML to DCA?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–DCA that never appear on search engines, with no booking fees.