Kate reportedly boarded a British Airways flight on Jan. 20 with her parents Michael and Carole and siblings Pippa and James!

Kate Middleton definitely needs a break and what better place than a private Caribbean island? People reports that Kate and her family were spotted on a flight at London’s Gatwick Airport headed to St. Lucia. They were seated first class — we love how they aren’t too good for commercial!

It’s believed that the family will head to the private island of Mustique, which is located in the West Indies. It’s a favorite vacation destination of the royals.

But why isn’t Prince William on the trip with Kate? Because he’s reportedly spending this week at the Royal Air Force base near the home in Anglesey, Wales.

Kate just celebrated her 30th birthday on Jan. 9 and this will be the perfect opportunity for her to relax!

— Chloe Melas

More Will & Kate:

1. Kate Middleton Earrings: Were The $3,000 Sparklers A Christmas Gift From Prince William?
2. Kate Middleton Wins Top Beauty Star Of 2011 — Do You Agree?
3. Kate Middleton Draws 1,000s Of Fans For First Royal Walk To Church On Christmas