Fares ticketed before mid-August will avoid fare increases.
Qantas will increase fuel surcharges on both domestic and international flights from mid-August.
Qantas previously charged a flat fuel fee regardless of seat class, while the new pricing structure will bring the airline into line with Middle East partner Emirates, news.com.au reported.
Domestic base fares will increase between two and three percent, while on some international routes, base fares will rise instead of fuel surcharges.
The fuel surcharge on flights to the United States will increase to AU$365 one way for economy and premium economy and to AU$390 one way for business class.
On flights to the United Kingdom and Europe surcharges will jump to AU$255 for economy, AU$325 for premium economy and AU$445 for first and business class.
Economy prices will rise by AU$25 to the Middle East and South America, AU$10 to Asia and Honolulu and the base fare to South Africa will increase by AU$25.
QantasLink, the airline’s regional carrier, will also increase fare prices.
International bookings ticketed on or prior to 13 August 2013 will avoid the fare rises, while domestic bookings ticketed before 14 August 2013 will evade the surcharge increases.
Earlier this week, a Qantas Dash 8 aircraft was forced to make an emergency landing at Canberra.