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

Return flights

08 Oct - 03 Nov	Singapore Airlines
05 Oct - 19 Oct	Qantas
07 Oct - 21 Oct	Cathay Pacific
01 Oct - 08 Oct	Cathay Pacific
11 Oct - 18 Oct	Qantas
03 Oct - 28 Oct	Singapore Airlines
01 Oct - 29 Oct	Thai Airways
01 Oct - 06 Nov	Thai Airways
18 Oct - 06 Nov	Thai Airways
18 Oct - 09 Nov	Thai Airways
21 Oct - 06 Nov	Thai Airways
21 Oct - 31 Oct	Singapore Airlines
07 Oct - 24 Oct	Malaysia Airlines

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 $686

Return flights