The 27-year-old X-Factor judge is said to have been on her way back from South Africa with rumoured boyfriend Derek Hough when she stopped off at the plush Windsor suite. Usually it is reserved for the likes of the royal family and the Beckhams.
An airport insider told The Mirror, 'Aside from the private suite used by the Queen and Prince Philip, the Windsor suite is the most exclusive area of the airport. It's used by all the rest of the royal family - Prince Charles, Prince Andrew, Harry and William - plus the prime minister, visiting foreign presidents and royalty.
'Victoria Beckham was the first celeb to start using the Windsor suite, now Cheryl's in on it too. She's in pretty good company - it shows how far she's come in her career.'