More than 4,600 workers employed by 11 different companies at Gatwick have seen an average pay rise of 8.3% in recent weeks, according to the Unite union
The figures were released as around 400 passenger assistance workers, who were scheduled to strike, voted in favour of a pay offer worth 10.5%.
About 170 baggage screening workers, who had also voted for strike action, have now accepted an 11% deal.
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Other notable pay deals include an 8% rise plus a £900 one off payment for 1,900 workers directly employed by the airport and 9.8% for 1,100 DHL easyJet staff.
The 11 employers where Unite secured pay deals for 4,625 workers are: Gatwick Airport, DHL EasyJet, Menzies, ASC, North Air, ABM Airside, Red Handling, ICTS, DHL Gatwick Direct, Wilson James and Gate Gourmet.
Unite general secretary Sharon Graham said: “As these phenomenal results show, Unite is reversing the trend of jobs at Gatwick being underpaid and undervalued.
“Unite is achieving this by organising workers at Gatwick and relentlessly focusing on improving jobs, pay and conditions.”