The longtime couple became engaged to be married over Valentine's Day weekend

By Julie Jordan
Updated March 21, 2009 06:00 PM
Credit: Tony Barson/WireImage

Harrison Ford and girlfriend Calista Flockhart are engaged to be married, sources close to the couple confirm exclusively to PEOPLE.

Ford, 66, surprised Flockhart, 44, with an engagement ring on Valentine’s Day weekend while the two were away on a family vacation with son Liam.

Reps for the couple did not return calls.

The couple has been together for seven and a half years. No wedding date has been set yet.