Most major domestic and international airlines offer flights covering the 2890-kilometer aerial distance from Sydney to Kathmandu. Options include Air India, IndiGo, SpiceJet, Vistara, Hahn Air, Cathay Pacific, Thai Airways, and more.
Flights from Sydney to Kathmandu are available throughout the week with a variety of schedules, allowing you to choose a convenient option. It's advisable to book your preferred airline and timing around two months before your planned travel date for the best availability. Otherwise, consider booking at least one month in advance to secure a lower-than-average price for your air tickets from Sydney to Kathmandu.