The number of passengers flying out of Stansted with Easyjet is set to double over the next five years.
The low-cost carrier has signed a deal with the airport, to raise passenger numbers to 6 million by 2018.
Airport bosses say it is part of their plan to make Stansted the best airport in London.
Stansted airport is to be hit by seven days of strike action, including stoppages over the Jubilee bank holiday weekend.
Members of the GMB union, who work for ground service company Swissport, will walk out for the first time this Wednesday in a 24 hour strike starting at 5:30am.
There will be further walk-outs from 5:30am on Saturday until 5.30am on Monday May 28 and from 5.30am on Saturday June 2 until 5.30am on Wednesday June 6.
The GMB suspended threatened strike action earlier this year over the introduction of new rosters after the company agreed to enter talks. The discussions broke down last Friday.
Border Agency staff at Heathrow, Gatwick and Stanstead airports have walked out over changes to pension retirement age. The strike started at midnight.
It's part of a wave of 24-hour public sector strikes up and down the UK. Extra staff have been brought in to minimise disruption.