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

Return flights

13 Apr - 01 May	Malaysia Airlines
14 Apr - 02 May	Singapore Airlines
19 Apr - 28 Apr	Singapore Airlines
15 Apr - 02 May	Singapore Airlines
14 Apr - 01 May	Singapore Airlines
15 Apr - 01 May	Singapore Airlines
01 Apr - 30 Apr	Cathay Pacific
07 Apr - 01 May	Singapore Airlines
11 Apr - 30 Apr	Cathay Pacific
03 Apr - 29 May	Singapore Airlines
12 Apr - 01 May	Singapore Airlines
11 Apr - 24 Apr	Cathay Pacific

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

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 April from 680€

Return flights