AirHint found the following cheapest return flights from Singapore (SIN) to Kathmandu (KTM)
in December 2025 (see full year ).
Return flights
30 Dec
- 11 Jan
SriLankan Airlines
$ 342
31 Dec
- 11 Jan
SriLankan Airlines
$ 342
03 Dec
- 16 Dec
Air India
$ 434
20 Dec
- 28 Dec
SriLankan Airlines
$ 538
20 Dec
- 27 Dec
Cathay Pacific
$ 556
26 Dec
- 04 Jan
Cathay Pacific
$ 556
28 Dec
- 11 Jan
Thai AirAsia
$ 571
02 Dec
- 08 Dec
Thai AirAsia
$ 579
02 Dec
- 07 Dec
Thai AirAsia
$ 579
28 Dec
- 04 Jan
Thai AirAsia
$ 585
30 Dec
- 04 Jan
Thai AirAsia
$ 588
20 Dec
- 04 Jan
Thai AirAsia
$ 716
07 Dec
- 28 Dec
Thai AirAsia
$ 717
26 Dec
- 04 Jan
Singapore Airlines
$ 782
direct
20 Dec
- 28 Dec
Singapore Airlines
$ 831
direct
30 Dec
- 11 Jan
Singapore Airlines
$ 840
direct
31 Dec
- 11 Jan
Singapore Airlines
$ 840
direct
20 Dec
- 27 Dec
Singapore Airlines
$ 887
direct
02 Dec
- 08 Dec
Singapore Airlines
$ 974
direct
03 Dec
- 16 Dec
Singapore Airlines
$ 1058
direct
Also check the deals for one-way flights from Singapore to Kathmandu in December .
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.