Direct (nonstop) flights from Kathmandu to Colombo
1 airline flys nonstop from Tribhuvan International (KTM) to Bandaranaike International (CMB). It's 1,456 miles (2,344 km), about 3h 35m in the air. Operated by SriLankan Airlines.
SriLankan Airlines
Route data last updated: May 27, 2026
Airlines with non-stop flights
UL
SriLankan Airlines
Alternative Routes
Other ways to fly from Kathmandu to Colombo with one stop · direct emits 246 kg CO₂ per passenger
Looking for the return flight?
CMB → KTM: Flights from Colombo to KathmanduOther direct flights from Kathmandu
Direct flights from Colombo (CMB)
Frequently Asked Questions
How long is the direct flight from Kathmandu to Colombo?
A nonstop flight from Kathmandu (KTM) to Colombo (CMB) takes approximately 3 hours and 35 minutes. The distance is 1,456 miles (2,344 km).
Which airlines fly nonstop from Kathmandu to Colombo?
Just SriLankan Airlines.
Is there a nonstop flight from Kathmandu to Colombo?
Yes. 1 airline: SriLankan Airlines.
How far is Kathmandu from Colombo?
The flight distance from Kathmandu to Colombo is 1,456 miles (2,344 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as New York to Miami.
What type of aircraft flies from Kathmandu to Colombo?
At 3h 35m, this route typically uses narrow-body or mid-range jets — Boeing 737 MAX or Airbus A320neo. Varies by airline.
Do I need a visa to travel from Nepal to Sri Lanka?
Depends on your passport. Check with the Sri Lanka embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Kathmandu to Colombo?
Roughly 246 kg CO2 per passenger one-way. That's about the same as driving 1,230 km.
Is the return flight from Colombo to Kathmandu also nonstop?
Yes — nonstop flights run both ways. Flight time may differ slightly due to wind patterns.
When is the cheapest time to fly from Kathmandu to Colombo?
Midweek flights (Tue/Wed) outside holiday peaks are usually cheapest. 3-6 weeks ahead is a good window for this route. Use "Check Prices" above to compare.
How early should I arrive at Tribhuvan International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.