Kolkata to Kathmandu Flights in December 2026

Round-trip fares, airlines and dates for December 2026, refreshed nightly.

Quick answer

The cheapest round-trip flight from Kolkata to Kathmandu in December 2026 is ₹58,084, for 15 – 22 Dec 2026 on THAI (1 stop).

We priced 4 date options in December; the average is ₹70,064.

Fares seen checked 7h ago. Prices change often; confirm before booking.

Cheapest Kolkata to Kathmandu fares in December 2026

15 – 22 Dec 2026 · 7 nightsTHAI · 1 stop · 5h 50m₹58,084

15 – 18 Dec 2026 · 3 nightsTHAI · 1 stop · 5h 50m₹63,878

15 – 20 Dec 2026 · 5 nightsTHAI · 1 stop · 5h 50m₹72,166

28 Dec 2026 – 2 Jan 2027 · 5 nightsTHAI · 1 stop · 5h 50m₹86,127

How much is a flight from Kolkata to Kathmandu in December?

Round-trip fares start at ₹58,084 for 15 – 22 Dec 2026 on THAI. The average of the 4 dates we priced is ₹70,064.

Are there non-stop flights from Kolkata to Kathmandu in December?

The dates we priced all have a stop. THAI fly the route.

Which month is cheapest to fly from Kolkata to Kathmandu?

January 2027 is the cheapest month we have priced, from ₹47,776.

Which airlines fly from Kolkata to Kathmandu?

For December we priced THAI.