The Chargers won one AFL title in 1963 before joining the NFL as part of the AFL-NFL Merger.
Franchise history
1959-1969
Established with seven other American Football League teams in 1959, in 1960, the Chargers began AFL play in Los Angeles. The Chargers' original owner was hotel heir Barron Hilton, son of Hilton Hotels founder Conrad Hilton. The Chargers only spent one season in L.A. before moving to San Diego in 1961. The early AFL years of the San Diego Chargers were highlighted by the outstanding play of wide receiverLance Alworth. In his day, he set the pro football record of consecutive games with a reception.
Their only coach for the ten year life of the AFL was Sid Gillman, a Hall of Famer who forced his competition to try to field as professional a product as the Chargers. With stars such as Lance Alworth, Paul Lowe, Keith Lincoln and John Hadl, the Chargers' offense struck fear into the hearts of AFL defenders. They also played defense, as indicated by their professional football record 49 pass interceptions in 1961. The Chargers were the originators of the term "Fearsome Foursome" to describe their all-star defensive line, anchored by Earl Faison and Ernie Ladd (the latter also dabbled in professional wrestling). The phrase was later appropriated by various NFL teams. The Chargers franchise appeared in the first two American Football League Championship games and five altogether, winning the AFL title in 1963 with a 51 - 10 thumping of the Boston Patriots. The Chargers of that era were widely acknowledged as having the most striking uniforms in the history of pro football.