Jennifer Garner landed at JFK after taking off from LAX yesterday. She was all smiles as she stepped out of a black SUV in LA and bid farewell to her driver before heading inside the airport with a large green tote on her arm. Jen's off on a trip while husband Ben Affleck just returned home following a visit to Spain. Ben traveled to Europe for this year's San Sebastián Film Festival, where he premiered Argo for an international crowd. Jen's stepping up her own promotional tour for her upcoming release, Butter. She pretaped an interview with Ellen DeGeneres, airing today, in which she shared funny stories about Ben's "wonder sperm" and misplacing her son.