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IWS to RML: distance & flight time
Houston (West Houston Airport) → Colombo (Colombo Ratmalana Airport)
9,888 mi
15,913 km · 8,593 nm
19h 51m
estimated nonstop flight time
+10.5h
time difference · heading north
See live IWS→RML fares Phone-only fares on this route — call free
Flight time details
9,888 miles nonstop takes roughly 19h 51m gate to gate, flying north. Add 45–90 minutes per connection if there's no nonstop service. Remember to factor the 10.5-hour time gain when reading arrival times on your ticket.
The two airports
- IWS — West Houston Airport · Houston, 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 IWS
- IAH · George Bush Intercontinental Houston Airport23 mi away
- AAP · Andrau Airpark8 mi away
- SGR · Sugar Land Regional Airport14 mi away
- DWH · David Wayne Hooks Memorial Airport18 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 IWS from RML?
The flight distance from Houston (IWS) to Colombo (RML) is 9,888 miles (15,913 km, 8,593 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from IWS to RML?
A nonstop flight takes about 19h 51m 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 Houston and Colombo?
Colombo is 10.5 hours ahead of Houston.
What is the cheapest way to fly from IWS to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on IWS–RML that never appear on search engines, with no booking fees.