This is a list of current and defunct leagues of American football and Canadian football. Leagues in North America Current professional leagues in North America Professional outdoor leagues Major National Football League (NFL), 1920– Originally American Professional Football Conference, American Professional Football Association (1920–1921) Merged with the American Football League (1960–69) Canadian Football League (CFL), 1958–2019; 2021– Formed from Interprovincial Rugby Football Union (1909) and Western Interprovincial Football Union (1936). Grey Cup Canadian Football Championships since 1909 Other Liga de Fútbol Americano Profesional (LFA), 2016–2020; 2022– XFL, 2020; 2023– United States Football League (USFL), 2022– Professional arena/indoor leagues Indoor Football League, (14 teams) 2009– Formed from United Indoor Football and Intense Football League Champions Indoor Football, (7 teams) 2015– Formed from Champions Professional Indoor Football League and Lone Star Football League National Arena League, (8 teams) 2017– American West Football Conference, (4 teams) 2019– Fan Controlled Football, (8 teams) 2021– American Indoor Football Alliance, (4 teams) 2022– Arena Football Association, (4 teams) 2022– Current Developmental leagues Gridiron Developmental Football League, 2010– Rivals Professional Football League, 2015– Current semi-pro|amateur leagues Chicagoland Football League, 1917–1934, 2005– Northern Football Conference, 1954– Eastern Football League, 1961– Empire Football League, 1969– Mason-Dixon Football League, 1978– Alberta Football League, 1984– The Minor Football League, 1993– New England Football League, 1994– National Public Safety Football League, 1997– Rocky Mountain Football League, 1997– MidStates Football League, 1999– Maritime Football League, 2001– The Pacific Coast Football League, 2006– Florida Football Alliance, 2007– East Coast Football Association, 2007– Northern Elite Football League, 2008– Atlantic Coast Football Alliance, 2009– Texas United Football Association, 2010– Amateur to Professional Developmental Football League, 2012– American 7s Football League, 2014– Puerto Rico American Football League, 2014– Atlantic Football Association, 2014– Florida Champion Football League, 2017– Cactus Football League, 2018– North Louisiana Football Alliance, 2019– Southern Elite Football League, 2021– Mid-West United Football league, 2021– Heartland Football Association, 2022– Current Flag football leagues National Gay Flag Football League, 2002– DC Gay Flag Football League, 2009– American Flag Football League, 2018– Current Collegiate and amateur leagues National Collegiate Athletic Association, 1906– National Federation of State High School Associations, 1920– California Community College Athletic Association, 1929– Collegiate Sprint Football League, 1934– National Junior College Athletic Association, 1938– National Association of Intercollegiate Athletics, 1940– U Sports, 1961– Quebec Junior Football League, 1970– Canadian Junior Football League, 1974– Organización Nacional Estudiantil de Fútbol Americano, 1978– Atlantic Football League, 2009– Intercollegiate