Ready to fly KTM to RML?
Compare flight prices across hundreds of airlines and booking sites.
Find flights from KTM to RMLSome links on this page are affiliate links. We may earn a commission at no extra cost to you.
Airport Comparison
Kathmandu (KTM) to Colombo (RML) Flight Distance
The flight distance from Tribhuvan International Airport (KTM) in Kathmandu, Nepal to Colombo Int Arpt Ratmalana Airport (RML) in Colombo, Sri Lanka is 2,392 kilometers (1,486 miles / 1,292 nautical miles). The estimated flight time for this route is approximately 4h, flying south southwest at a heading of 195°.
This is a medium-haul route that may be operated by either narrow-body or wide-body aircraft depending on demand. Passengers can expect a meal service on most carriers.
This is an international route connecting Nepal with Sri Lanka. Travelers should check visa requirements, customs regulations, and any travel advisories before booking.
Time zone information: When it's 18:25 in Kathmandu, it's 18:10 in Colombo.
There is a significant elevation difference of 4,368 feet between the two airports. Colombo Int Arpt Ratmalana Airport sits lower than Tribhuvan International Airport.
The return flight from Colombo (RML) to Kathmandu (KTM) follows a heading of 13° (north northeast). Actual flight times may vary depending on wind conditions, air traffic, and the specific aircraft used.
For more information about these airports, visit the Tribhuvan International Airport (KTM) and Colombo Int Arpt Ratmalana Airport (RML) detail pages, or use our flight duration calculator to compare other routes.
Cheapest months to fly KTM → RML
Live ticket prices for the next 12 months. Click any month to see deals.
Flight schedule KTM → RML
Upcoming departures, airlines, and flight numbers for this route.
Flight KTM → RML delayed or cancelled?
You may be entitled to up to €600 compensation under EU 261 / UK 261. Check eligibility in 2 minutes.