Buddha Air
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India
Netaji Subhash Chandra Bose International Airport
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Nepal
Tribhuvan International Airport
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Scan through all non-stop flights from Kolkata to Kathmandu. The full flight schedule below gives an overview of all non-stop flights from CCU to KTM, which includes the daily timetable of every operating airline for the upcoming 12 months.
Note: for airline-specific flight schedules, please scroll further down.
Kathmandu is a humid subtropical or warm-temperate destination, featuring hot, humid summers with temperatures typically around 30°C (86°F) and mild to cool winters. The region is known for consistent rainfall throughout the year, peaking in summer. The area is known for its vibrant urban energy, diverse landscapes, and numerous outdoor activities.
You can visit Kathmandu any time of the year, but the best months to explore are from to and from to .
Currently, there is only one airline operating non-stop flights from Kolkata CCU to Kathmandu KTM, which is Buddha Air. This section gives an overview of the flight schedules and timetables of every airline with direct flights for this route.
Click an airline below to view their CCU KTM flight schedule.
Flights from CCU to KTM are operated 4 times a week, with an average of 1 flight per day. All flights depart at 09:35.
On this non-stop route, you can fly in Economy only.
The fastest direct flight from Kolkata to Kathmandu takes 1 hour and 15 minutes. The flight distance between Kolkata and Kathmandu is 398 miles (or 641 km).
There is 1 airport in Kathmandu: Tribhuvan International Airport (KTM).
There are 4 flights per week flying from Kolkata to Kathmandu (as of April 2026).
1 hour and 15 minutes is the average flight time from Kolkata to Kathmandu.
The distance from Kolkata to Kathmandu is 398 miles (641 kilometers).
Buddha Air is the only airline flying nonstop from Kolkata to Kathmandu.
There are no alliances flying direct from Kolkata to Kathmandu at the moment.
You can fly non-stop in Economy only.
Aircraft types that fly from Kolkata to Kathmandu:
The earliest flight departs at 09:35 from Kolkata and arrives at 11:05 at Kathmandu.
The latest flight departs at 09:35 from Kolkata and arrives at 11:05 at Kathmandu.
398 miles (641 km) · 1h 15m
09:35
11:05
Buddha Air
U4 164
Buddha Air
Aerospatiale/Alenia ATR 42/ ATR 72
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