Kansas City Chiefs vs. Buffalo Bills. The Kansas City Chiefs are a professional football team based in Kansas City, Missouri. They are a member of the National Football League (NFL) and compete in the league's American Football Conference (AFC) West division. The team was founded in 1960 as the Dallas Texans but relocated to Kansas City in 1963 and became known as the Chiefs. The team has a rich history and has won multiple AFL championships and Super Bowl titles. The Chiefs are known for their passionate fan base and have a strong rivalry with the Oakland Raiders.