Direct (nonstop) flights from Colombo to Kathmandu
1 airline flys nonstop from Bandaranaike International (CMB) to Tribhuvan International (KTM). It's 1,456 miles (2,344 km), about 3h 30m in the air. Operated by SriLankan Airlines.
SriLankan Airlines
Route data last updated: May 29, 2026
Airlines with non-stop flights
UL
SriLankan Airlines
Alternative Routes
Other ways to fly from Colombo to Kathmandu with one stop · direct emits 246 kg CO₂ per passenger
Looking for the return flight?
KTM → CMB: Flights from Kathmandu to ColomboOther direct flights from Colombo
Direct flights from Kathmandu (KTM)
Frequently Asked Questions
How long is the direct flight from Colombo to Kathmandu?
A nonstop flight from Colombo (CMB) to Kathmandu (KTM) takes approximately 3 hours and 30 minutes. The distance is 1,456 miles (2,344 km).
Which airlines fly nonstop from Colombo to Kathmandu?
Just SriLankan Airlines.
Is there a nonstop flight from Colombo to Kathmandu?
Yes. 1 airline: SriLankan Airlines.
How far is Colombo from Kathmandu?
The flight distance from Colombo to Kathmandu 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 Colombo to Kathmandu?
At 3h 30m, 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 Sri Lanka to Nepal?
Depends on your passport. Check with the Nepal embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Colombo to Kathmandu?
Roughly 246 kg CO2 per passenger one-way. That's about the same as driving 1,230 km.
Is the return flight from Kathmandu to Colombo 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 Colombo to Kathmandu?
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 Bandaranaike International for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.