Cheapest return flights from Singapore to Kathmandu in December from $526

Best time to book flights for Singapore (SIN) to Kathmandu (KTM) flights at AirHint

AirHint found the following cheapest return flights from Singapore (SIN) to Kathmandu (KTM) in December 2025 (see full year).

Return flights

15 Dec - 29 Dec Air India
15 Dec - 22 Dec Air India
19 Dec - 02 Jan Air India
19 Dec - 03 Jan Air India
26 Dec - 01 Jan Air India
05 Dec - 27 Dec Thai Airways
01 Dec - 14 Dec Air India
15 Dec - 29 Dec Singapore Airlines direct
26 Dec - 01 Jan Singapore Airlines direct
15 Dec - 22 Dec Singapore Airlines direct
19 Dec - 03 Jan Singapore Airlines direct
05 Dec - 27 Dec Singapore Airlines direct
19 Dec - 02 Jan Singapore Airlines direct
01 Dec - 14 Dec Singapore Airlines direct

Also check the deals for one-way flights from Singapore to Kathmandu in December.

Skyscanner

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

Book a cheap hotel in Kathmandu

Cheap car rent in Kathmandu