Need help booking?
Unpublished phone-only deals available
DWH to RML: distance & flight time
Houston (David Wayne Hooks Memorial Airport) → Colombo (Colombo Ratmalana Airport)
9,870 mi
15,885 km · 8,577 nm
19h 49m
estimated nonstop flight time
+10.5h
time difference · heading north
See live DWH→RML fares Phone-only fares on this route — call free
Flight time details
9,870 miles nonstop takes roughly 19h 49m 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
- DWH — David Wayne Hooks Memorial 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 DWH
- IAH · George Bush Intercontinental Houston Airport14 mi away
- IWS · West Houston Airport18 mi away
- CXO · Conroe-North Houston Regional Airport22 mi away
- AAP · Andrau Airpark24 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 DWH from RML?
The flight distance from Houston (DWH) to Colombo (RML) is 9,870 miles (15,885 km, 8,577 nautical miles), measured along the great-circle route airlines actually fly.
How long is the flight from DWH to RML?
A nonstop flight takes about 19h 49m 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 DWH to RML?
Compare live fares online, then call CheapoTrav — our agents have unpublished consolidator fares on DWH–RML that never appear on search engines, with no booking fees.