Cameron Diaz and A-Rod's Late Night Flight

Trying to keep their relationship under the radar, Cameron Diaz and Alex Rodriguez were spotted sneaking onto a helicopter at a New York City helipad last night (July 18).

The Yankees stud and the “Charlie’s Angels” chick left a birthday party at the 40/40 Club and were whisked away to LA via chopper for A-Rod’s upcoming game against the Angels in Anaheim, California this week.

In related news, Rodriguez is trying out his acting chops with a role in the forthcoming comedy “Friends with Benefits.”

Alex joins big names like Justin Timberlake and Mila Kunis in the film, which starts filming in New York later this month.

Enjoy the pictures of Cameron Diaz and Alex Rodriguez boarding a helicopter in NYC (July 18).