Direct (nonstop) flights from Kolkata to Kathmandu
1 airline flys nonstop from Kolkata Netaji Subhas Chandra Bose Intl Airport (CCU) to Tribhuvan International (KTM). It's 397 miles (639 km), about 1h 15m in the air. Operated by Buddha Air.
Buddha Air
Route data last updated: May 27, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Kolkata to Kathmandu with one stop · direct emits 73 kg CO₂ per passenger
Looking for the return flight?
KTM → CCU: Flights from Kathmandu to KolkataOther direct flights from Kolkata
Direct flights from Kathmandu (KTM)
Frequently Asked Questions
How long is the direct flight from Kolkata to Kathmandu?
A nonstop flight from Kolkata (CCU) to Kathmandu (KTM) takes approximately 1 hours and 15 minutes. The distance is 397 miles (639 km).
Which airlines fly nonstop from Kolkata to Kathmandu?
Just Buddha Air.
Is there a nonstop flight from Kolkata to Kathmandu?
Yes. 1 airline: Buddha Air.
How far is Kolkata from Kathmandu?
The flight distance from Kolkata to Kathmandu is 397 miles (639 km), measured as the great-circle (shortest air) distance. That's roughly the same distance as Mumbai to Goa.
What type of aircraft flies from Kolkata to Kathmandu?
At 1h 15m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
Do I need a visa to travel from India 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 Kolkata to Kathmandu?
Roughly 73 kg CO2 per passenger one-way. That's about the same as driving 365 km.
Is the return flight from Kathmandu to Kolkata 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 Kolkata 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 Kolkata Netaji Subhas Chandra Bose Intl Airport for this flight?
3 hours before departure for international flights. You need time for check-in, security, and immigration.