Cheapest return flights from Sydney to Kathmandu in April from $747

Best time to book flights for Sydney (SYD) to Kathmandu (KTM) flights at AirHint

AirHint found the following cheapest return flights from Sydney (SYD) to Kathmandu (KTM) in April 2025 (see full year).

Return flights

25 Apr - 16 May Qantas
28 Apr - 27 May Qantas
22 Apr - 26 May Qantas
21 Apr - 06 May Qantas
27 Apr - 18 May Qantas
27 Apr - 12 May Malaysia Airlines
22 Apr - 06 May Cathay Pacific
01 Apr - 08 Apr Thai Airways
01 Apr - 10 Apr Thai Airways
01 Apr - 05 May Thai Airways
15 Apr - 15 May Thai Airways
02 Apr - 20 May Thai Airways
01 Apr - 11 Apr Thai Airways
01 Apr - 15 Apr Thai Airways
01 Apr - 13 Apr Thai Airways
15 Apr - 30 Apr Thai Airways
06 Apr - 13 Apr Air India
07 Apr - 15 Apr Air India
02 Apr - 30 Apr Thai Airways
01 Apr - 30 Apr Thai Airways

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

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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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