AirHint found the following cheapest return flights from Sydney (SYD) to Kathmandu (KTM) in January 2026 (see full year).

Return flights

31 Jan - 26 Feb	SriLankan Airlines
27 Jan - 05 Feb	AirAsia X
18 Jan - 09 Feb	China Southern
23 Jan - 08 Feb	China Southern
31 Jan - 14 Feb	Scoot
18 Jan - 23 Feb	Air India
26 Jan - 26 Feb	Air India
28 Jan - 16 Feb	Air India
28 Jan - 25 Feb	Air India
26 Jan - 25 Feb	Air India
26 Jan - 31 Jan	China Southern
12 Jan - 27 Jan	AirAsia X
24 Jan - 29 Jan	China Southern
24 Jan - 31 Jan	China Southern
19 Jan - 26 Jan	Qantas
23 Jan - 26 Jan	VietJet Air
17 Jan - 21 Jan	China Southern
18 Jan - 21 Jan	China Southern
15 Jan - 21 Jan	China Southern
12 Jan - 26 Jan	AirAsia X

Also check the deals for one-way flights from Sydney to Kathmandu in January.

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

Cheapest return flights from Sydney to Kathmandu in January from 664€

Return flights