Hundreds of airport workers have united for a 24-hour strike against aviation company Jetstar, for better wages and more hours.

Workers first held strikes in December last year and will return to the tactic on Wednesday, after the Transport Workers Union accused the budget airline of proposing an agreement “designed to keep Jetstar workers impoverished”.

The aviation company allegedly broke off talks with its workers on February 10, with a final offer given without any opportunity for negotiations.

TWU national secretary Michael Kaine said the union is “ready to talk whenever the company is.”

“The fact is these workers have no choice but to take strike action since they are desperate for more hours and are seeing their families struggle,” Mr Kaine told AAP on Tuesday.

A Jetstar spokesman on Tuesday said the airline has cancelled 48 services and moved customers to alternative flights with most people on impacted services set to travel within a few hours of their original departure time and all on the same day.

“To achieve this we have consolidated some services and moved other customers to Qantas flights where necessary,” the spokesman told AAP.