Planned strikes at Heathrow on August 23 and 24 have been postponed as union members consider a new pay offer.

Heathrow said it has offered an extra £2.5m to frontline workers.

A Heathrow spokesperson said: “We’re pleased that Unite has postponed the strike action scheduled for August 23 and 24 to give union members the time to consider our revised offer.

“We have put an additional £2.5 million on the table since talks began, with our current offer bringing the total pay rise to 7.8% over two years for all frontline colleagues. This is well above RPI, higher than any other UK airport and helps to provide long term wage certainty and job security.

“Heathrow has a duty to ensure the business is sustainable – particularly against the backdrop of increasing economic uncertainty facing the UK in the immediate future. The pay offer we have put on the table achieves that, in addition to being rewarding and fair to all colleagues.”

Industrial action involving 4,000 staff had also been planned for August 5 and 6 at the airport but was called off 24 hours before as workers vote on a new pay deal.