EasyJet has announced it will be cancelling more than 200 flights this week, with BA and TUI also grounding dozens of services.
EasyJet said about 24 flights a day from London's Gatwick Airport would be cancelled between 28 May and 6 June in order "to provide reliable services over this busy period".
The new announcement of cancellations comes after a software failure forced the airline to cancel another 200 flights on Thursday.