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RML to LUK: distance & flight time
Colombo (Colombo Ratmalana Airport) → Cincinnati (Cincinnati Municipal Airport Lunken Field)
9,108 mi
14,658 km · 7,915 nm
18h 20m
estimated nonstop flight time
-9.5h
time difference · heading north
See live RML→LUK fares Phone-only fares on this route — call free
Flight time details
9,108 miles nonstop takes roughly 18h 20m gate to gate, flying north. 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
- LUK — Cincinnati Municipal Airport Lunken Field · Cincinnati, 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 LUK
Frequently asked questions
How far is RML from LUK?
The flight distance from Colombo (RML) to Cincinnati (LUK) is 9,108 miles (14,658 km, 7,915 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from RML to LUK?
A nonstop flight takes about 18h 20m gate to gate. Actual time varies with winds, routing and season — eastbound transatlantic flights, for example, are usually faster than the return.
Are there nonstop flights from RML to LUK?
Nonstop service on RML–LUK depends on the season and the day of week. Run the fare search on this page with the nonstop filter applied to see current direct options; when there is no nonstop, a single connection through a carrier hub adds roughly 2–4 hours to the 18h 20m nonstop estimate.
What is the time difference between Colombo and Cincinnati?
Cincinnati is 9.5 hours behind Colombo.
What is the cheapest way to fly from RML to LUK?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on RML–LUK that never appear on search engines, with no booking fees.
Why are some RML to LUK fares phone-only?
Consolidator contracts let us sell certain RML–LUK tickets below the price airlines permit us to publish online, so those fares can only be quoted over the phone. Call the travel desk and an agent will check phone-only inventory for your dates.