Thousands of passengers have been delayed after flash flooding caused a power outage at Luton Airport, leaving people unable to clear passport control.
Women and children were eventually allowed through by airport staff as queues quickly built up.
A back-up system is now in place to let people who have landed at Luton through, but significant delays are still being reported.
Meanwhile at Gatwick Airport, there are delays to both departing and landing flights because of the bad weather, which saw a month’s worth of rain fall in an hour.
There are no reported weather-related delays at Heathrow Airport.