The Transport Workers Union has labelled Qantas' attempt to make good after travel chaos a "massive own goal" which won't fix the problems plaguing the airline.

The airline announced on Sunday a $50 travel credit for its frequent flyers as part of a formal apology for poor performance.

Transport Workers Union secretary Michael Kaine called the initiative a "massive own goal", saying it won't fix the issues of flight delays, cancellations and lost luggage.

Kaine told Liam Bartlett on 6PR Mornings that the way the airline has made some 'very poor decisions'.

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