Direct (nonstop) flights from Kathmandu to Kolkata
1 airline flys nonstop from Tribhuvan International (KTM) to Kolkata Netaji Subhas Chandra Bose Intl Airport (CCU). It's 397 miles (639 km), about 1h 45m in the air. Operated by Buddha Air.
Buddha Air
Route data last updated: May 30, 2026
Airlines with non-stop flights
Alternative Routes
Other ways to fly from Kathmandu to Kolkata with one stop · direct emits 73 kg CO₂ per passenger
Looking for the return flight?
CCU → KTM: Flights from Kolkata to KathmanduOther direct flights from Kathmandu
Direct flights from Kolkata (CCU)
Frequently Asked Questions
How long is the direct flight from Kathmandu to Kolkata?
A nonstop flight from Kathmandu (KTM) to Kolkata (CCU) takes approximately 1 hours and 45 minutes. The distance is 397 miles (639 km).
Which airlines fly nonstop from Kathmandu to Kolkata?
Just Buddha Air.
Is there a nonstop flight from Kathmandu to Kolkata?
Yes. 1 airline: Buddha Air.
How far is Kathmandu from Kolkata?
The flight distance from Kathmandu to Kolkata 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 Kathmandu to Kolkata?
At 1h 45m, this route typically uses narrow-body aircraft — Boeing 737 or Airbus A320. Varies by airline.
Do I need a visa to travel from Nepal to India?
Depends on your passport. Check with the India embassy or an official visa portal before booking — requirements change.
What is the carbon footprint of a flight from Kathmandu to Kolkata?
Roughly 73 kg CO2 per passenger one-way. That's about the same as driving 365 km.
Is the return flight from Kolkata 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 Kolkata?
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.