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

Return flights

15 Oct - 25 Nov	Singapore Airlines
07 Oct - 02 Nov	Singapore Airlines
07 Oct - 04 Nov	Singapore Airlines
01 Oct - 17 Nov	Qantas
27 Oct - 17 Nov	Qantas
13 Oct - 20 Nov	Singapore Airlines
06 Oct - 21 Oct	Singapore Airlines
15 Oct - 20 Nov	Singapore Airlines
13 Oct - 24 Nov	Qantas
14 Oct - 18 Nov	Singapore Airlines
02 Oct - 17 Nov	Qantas
04 Oct - 20 Oct	Qantas
03 Oct - 19 Oct	SriLankan Airlines
09 Oct - 25 Oct	Qantas
10 Oct - 25 Oct	Qantas
02 Oct - 18 Oct	Qantas
23 Oct - 24 Oct	Singapore Airlines
03 Oct - 09 Oct	Cathay Pacific
03 Oct - 10 Oct	Thai Airways
03 Oct - 29 Oct	China Southern

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

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.

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Cheapest return flights from Sydney to Kathmandu in October from $777

Return flights