Qantas will increase the fuel surcharge on all flights shared with partner airline Emirates, with the new fees adding up to $50 to the cost of a one-way ticket.

The higher charges will be imposed on Qantas tickets issued from January 23 and vary depending on the destination and class of ticket.

Qantas says the changes reflect "continued high fuel costs and a lower Australian dollar" and are part of the "ongoing alignment with Emirates".

One-way economy tickets will rise by an average of $13 and premium economy an average of $25, while business and first class will see an average $40 lift.

The biggest increases are on business class and first class tickets to Europe, the UK, North Africa and the Middle East, with travellers up for an extra $50 each way.

The majority of Qantas flights are part of the 'Qantas/Emirates network' and carry an Emirates EK flight number alongside their native QF code as part of the codeshare agreement between the two airlines.

As a result, routes which travellers may think have nothing to do with Emirates – such as the longstanding daily Sydney-Singapore and Melbourne-Singapore services – will be hit with the higher fuel surcharge from January 23.

However, the cost of tickets on Qantas flights which are not part of the Qantas/Emirates alliance – such as flights to the USA, Hong Kong and South Africa – will not change.

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