Cheapest one-way flights from Sydney to Kathmandu in September from 408€

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

AirHint found the following cheapest one-way flights from Sydney (SYD) to Kathmandu (KTM) in September 2025 (see full year).

One-Way flights

05 Sep Qantas
12 Sep Air India

Also check the deals for return flights from Sydney to Kathmandu in September.

Skyscanner

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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