easyJet passengers are expected to be the most affected.
Friday is expected to be the worst day with 865 flights scheduled to be disrupted.
He says he went along with it as he had been drinking since 10am.
See video: Two arrested at Ibiza Airport for engaging in sexual activity on board an EasyJet aircraft
According to section 71 of the Sexual Offences Act 2004, it is illegal to have sex in a public toilet.
Ryanair has been warned in the past.
In 2019, a Spanish court ruled Ryanair's policy of charging a fee for hand luggage was "abusive".
Ground staff at Gatwick are due to strike for eight days from later this month.
The travel industry is on high alert for disruption this summer.
easyJet has been forced to cancel thousands of flights for this summer.
Britons heading to the Balearics and Spain could be hit with delays and cancellations.
easyJet is key to the UK market in the Balearics.
The airline will connect Palma with 26 destinations this season.
Largely brought about by the disputes at easyJet, Iberia Express and Ryanair.
Ryanair could call an indefinite strike as early as the start of next month
Lundgren said he backed airports capping flights, adding that easyJet's cuts were in line with the moves.