The flights, which will service the line’s cruise departures in the Mediterranean, were made available on Friday (January 13).

Celebrity said there was limited availability on the £99 air fares, while other seats costing up to £199 to join vessels sailing from Civitavecchia – the port of Rome – and Venice, would also be available.

The £99 air fares are available from airports including Heathrow, London Gatwick, Manchester, Birmingham, Edinburgh and Dublin.

Claire Stirrup, director of sales, Celebrity Cruises UK and Ireland, said: "Our turn-of-year campaign is all about adding surprise and delight moments to our agent partners’ most busy period of the year.

"As the weather really turns to be incredibly wintery we wanted to ensure that agents are equipped to sell summer-getaways at the best possible value. The reduced price flights will not be around for long.”