Great pals Cameron Diaz and Gwyneth Paltrow dressed up to take off from London's Heathrow airport together yesterday. Gwyneth, in skinny jeans and white Wayfarers, headed in alongside Cameron to browse for snacks and magazines before boarding. The good friends are apparently headed to NYC following a week of fun in England. Gwyneth and Cameron joined the queen's husband, Prince Philip, last Tuesday for the reopening of the city's Arts Club, a bash at which Ms. Paltrow even performed! Next up, Cameron supported their mutual pal Jude Law at his SoHo performance of Anna Christie before reuniting with Gwyneth at Stella McCartney's second 40th birthday party. It seems Gwyneth and Cameron didn't, though, join in on the latest McCartney event — Stella's father Paul McCartney married Nancy Shevell yesterday, and they celebrated with a small reception in their yard.