Up in the Air is a 2009 American comedy-drama film directed by Jason Reitman. It was written by Reitman and Sheldon Turner, based on the 2001 novel Up in the Air by Walter Kirn. The story is centered on traveling corporate "downsizer" Ryan Bingham. Vera Farmiga, Anna Kendrick, and Jason Bateman also star. Up in the Air was primarily filmed in St. Louis with additional scenes shot in Detroit, Omaha, Las Vegas, and Miami.

Jason R. Reitman is a Canadian–American filmmaker. He is best known for directing the films Thank You for Smoking (2005), Juno (2007), Up in the Air (2009), Young Adult (2011) and Ghostbusters: Afterlife (2021). He has received one Grammy Award, one Golden Globe and four Academy Award nominations, two of which are for Best Director. Reitman is a dual citizen of Canada and the United States. He is the son of director Ivan Reitman, and known for frequently collaborating with screenwriter Diablo Cody.