Some staff at Birmingham Airport are to be balloted over taking industrial action over the Christmas period.
The Unite union said its members had rejected a 2.5 per cent pay offer which followed a pay freeze in place since 2009.
The airport say contingency plans would be put in place to minimise disruption if the strike went ahead.
Unite has held two consultative ballots with its members and the company's offer has been rejected on both occasions. In the most recent ballot 76.5 per cent of members returning ballot papers rejected the company's offer.