The data does not cover flights that were cancelled.

While most of the routes with the delays were to European countries, the worst route for keeping passengers waiting was found to be Heathrow to Accra, Ghana, with 70% of flights subject to delays of more than 30 minutes.

A spokesman for Gatwick told the BBC that strike action and “heavily congested airspace” above the capital was to blame: “[These factors] have led to a significant increase in the number of delays caused by wider air traffic control issues outside Gatwick's control.

“Gatwick has more flights to Europe than any UK airport and is impacted disproportionately by events on the continent.”

Oh well, take heart from the fact the average unscheduled wait is a mere 21 minutes, easily whiled away with a podcast – compared to the longest delay of almost 13 hours, recorded last September for a flight from Manchester to Dusseldorf.

See the full list here.

While you can’t control how long your flight is delayed for – and to be fair, you probably won’t be changing the airport you fly from due to geographical/financial reasons – we can help you with what to pack, which podcasts to download and tips for cheaper holidays in the first place. So y’know, you’ve got extra cash to entertain yourself with at the airport…

Images: iStock

Booked your summer holiday? These are the worst UK airports for flight delays