The line maintenance staff, who are responsible for towing and marshalling aircraft as well as performing turnaround checks, joined existing strike action by engines and components maintenance workers.

Engineers at Brisbane, Sydney, Canberra, Melbourne, Adelaide, and Perth airports walked off the job as part of industrial action pushing for a major pay increase.

Qantas passengers have escaped major disruptions as workers walk off the job for a second time as part of an escalating pay dispute. Hundreds of Qantas engineers are staging walkouts on Monday as union members push for a 15 per cent pay rise in the first year of a new enterprise agreement, followed by five per cent increases in subsequent years.

Flights between 7am and 9am at major capital city airports Sydney, Melbourne, Brisbane, Canberra, Perth and Adelaide could be affected during the stoppages.

Travellers are bracing for flight delays as Qantas engineers again walk out on the job over alleged pay disputes.

Qantas is preparing for further industrial action as more than 1,000 engineers walked off the job on Monday from 7am to 9am.

Qantas engineers are preparing to stop work and hold rallies during a peak-hour period but the airline insists passengers will not be affected.