Dublin Airport says storms across northern Europe are affecting some flights.
Intending passengers are being asked to check with their airline for updates.
As well as the thunderstorms across Northern Europe, parts of south east England have also been hit by flash floods today due to torrential rain and hail.
A freak summer storm has brought chaos to the south coast of England with lightning, floods and hailstones and a power cut on the railway lines.
Forecasters said a "deeply unstable airmass" had brought with it the risk of heavy, thundery showers throughout the day.
The UK Met Office said as nearly half a month worth of rain fell in an hour in some areas.
While several European countries have weather warnings in place.
These include Austria, Germany, the Czech Republic, Spain, Greece, Hungary and Italy.
