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RML to BOS: distance & flight time
Colombo (Colombo Ratmalana Airport) → Boston (General Edward Lawrence Logan International Airport)
8,576 mi
13,802 km · 7,452 nm
17h 17m
estimated nonstop flight time
-9.5h
time difference · heading northwest
See live RML→BOS fares Phone-only fares on this route — call free
Flight time details
8,576 miles nonstop takes roughly 17h 17m 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
- BOS — General Edward Lawrence Logan International Airport · Boston, 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 BOS
- OWD · Norwood Memorial Airport15 mi away
- BED · Laurence G Hanscom Field16 mi away
- BVY · Beverly Municipal Airport16 mi away
- LWM · Lawrence Municipal Airport25 mi away
Frequently asked questions
How far is RML from BOS?
The flight distance from Colombo (RML) to Boston (BOS) is 8,576 miles (13,802 km, 7,452 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to BOS?
A nonstop flight takes about 17h 17m 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 Boston?
Boston is 9.5 hours behind Colombo.
What is the cheapest way to fly from RML to BOS?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–BOS that never appear on search engines, with no booking fees.