The new Qantas bag number limit has been introduced to fit with the airline's new do-it-yourself baggage drop system designed to deliver faster check-in.

The new Qantas bag number limit has been introduced to fit with the airline's new do-it-yourself baggage drop system designed to deliver faster check-in. Photo: James Alcock

QANTAS is tightening baggage rules and increasing some fees for its most valued customers - its frequent flyers.

Changes to the scheme announced yesterday include imposing limits on the number of checked bags for domestic flights in addition to weight restrictions.

''This means all Qantas customers will have a piece limit, as well as a weight limit, applied to their complimentary checked baggage allowances,'' the airline said in a memo to members.

Under the new restrictions for domestic tickets issued from December 1 for travel from next June, frequent flyers will be limited to either one or two checked bags weighing up to 23 kilograms or 32 kilograms, depending on their status in the scheme and the class of travel.

The bag number limit has been introduced to fit with Qantas's new do-it-yourself baggage drop system designed to deliver faster check-in, which is being trialled at Perth before it is extended in other major airports, a spokeswoman said.

Presently, baggage allowances range from 23 to 45 kilograms, with no stipulation on the number of bags within the overall allowance.

Qantas's schedule of fees was changing to bring them in line with those charged to casual travellers, a spokeswoman said.

Some of the fee changes take effect from December, others from May 4 next year.

For example, the cost of an ''assistance'' fee for making an award booking for an international flight rises from 2500 points to 3500 points from December and to 6000 points from May.

Qantas Platinum card members will no longer have "any time" access to the airlines lounges, but must be travelling with Qantas, Jetstar or a oneworld alliance member to access any Qantas lounge.

Previously Platinum members could access the Qantas International Business Lounge or Qantas Club domestic lounge regardless of the airline they were flying with.

The Qantas Frequent Flyer loyalty scheme has more than 7 million members and is Qantas's most lucrative enterprise.