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GAI to CMB: distance & flight time
Gaithersburg (Montgomery County Airpark) → Colombo (Bandaranaike International Colombo Airport)
8,913 mi
14,345 km · 7,745 nm
17h 57m
estimated nonstop flight time
+9.5h
time difference · heading northeast
See live GAI→CMB fares Phone-only fares on this route — call free
Flight time details
8,913 miles nonstop takes roughly 17h 57m 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
- GAI — Montgomery County Airpark · Gaithersburg, United States
- CMB — Bandaranaike International Colombo 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 GAI
Near CMB
- RML · Colombo Ratmalana Airport25 mi away
- GIU · Sigiriya Air Force Base79 mi away
- ACJ · Anuradhapura Air Force Base86 mi away
- KCT · Koggala Airport87 mi away
Frequently asked questions
How far is GAI from CMB?
The flight distance from Gaithersburg (GAI) to Colombo (CMB) is 8,913 miles (14,345 km, 7,745 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from GAI to CMB?
A nonstop flight takes about 17h 57m 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 Gaithersburg and Colombo?
Colombo is 9.5 hours ahead of Gaithersburg.
What is the cheapest way to fly from GAI to CMB?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on GAI–CMB that never appear on search engines, with no booking fees.