A Ryanair spokesperson said: “Potential disruptions to and from Ireland on Wednesday, November 1 due to Storm Ciaran. Affected passengers will be notified and any passengers travelling to and from Ireland on Wednesday, November 1 should check their Ryanair app for flight updates before travelling to the airport.
“We regret any inconvenience caused to passengers as a result of this storm which is outside of Ryanair’s control and affects all airlines operating to/from Ireland on Wednesday, November 1.”
The Met Office has issued amber weather warnings for areas of southwestern England and Wales on Thursday.
The wettest conditions are expected between Wednesday evening and Friday morning with some areas to see as much as 80mm of rainfall.
An easyJet spokesperson said: “Storm Ciaran is expected to affect parts of Northern Ireland, Southern England and the Channel Islands from the evening of November 1 through to November 2.
“This has the potential to cause some delays and disruption to flights. Please keep an eye on the Flight Tracker before you leave for the airport and allow more time for your journey.”
The airline said it would let passengers know about any changes to their flight by email and SMS as soon as possible.
The spokesperson added: “Although this disruption is outside of our control, we want to reassure customers we’re doing all we can to minimise any disruption to your journeys.”
Passengers with easyJet holidays booked will be contacted by the easyJet holidays team with any changes to their arrangements.
Kate Marks, flood duty manager at the Environment Agency, said: “Significant surface water flooding is possible but not expected in the South East of England today and minor river flooding impacts are probable.
“Further significant flooding impacts are possible from Wednesday through to Friday in response to rain from Storm Ciaran.
“We advise people to stay away from swollen rivers and urge people not to drive through flood water as just 30cm of flowing water is enough to move your car.”
British tourists should contact their airline if their flight has been cancelled to discuss options.