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KLS to RML: distance & flight time
Kelso (Southwest Washington Regional Airport) → Colombo (Colombo Ratmalana Airport)
8,519 mi
13,710 km · 7,403 nm
17h 10m
estimated nonstop flight time
+12.5h
time difference · heading northwest
See live KLS→RML fares Phone-only fares on this route — call free
Flight time details
8,519 miles nonstop takes roughly 17h 10m gate to gate, flying northwest. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 12.5-hour time gain when reading arrival times on your ticket.
The two airports
- KLS — Southwest Washington Regional Airport · Kelso, 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 KLS
- PDX · Portland International Airport39 mi away
- CLS · Chehalis Centralia Airport39 mi away
- HIO · Portland Hillsboro Airport40 mi away
- TTD · Portland Troutdale Airport46 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 KLS from RML?
The flight distance from Kelso (KLS) to Colombo (RML) is 8,519 miles (13,710 km, 7,403 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from KLS to RML?
A nonstop flight takes about 17h 10m 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 Kelso and Colombo?
Colombo is 12.5 hours ahead of Kelso.
What is the cheapest way to fly from KLS to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on KLS–RML that never appear on search engines, with no booking fees.