 Relegation meant that 2009 – 10 saw Luton playing in the Conference Premier , a competition which the club had never before participated in . The club unsuccessfully contested the promotion play @-@ offs three times in four seasons during their time as a non @-@ League club , employing five different managers . In the 2012 – 13 FA Cup fourth round , Luton won their away tie against Premier League club Norwich City 1 – 0 and , in doing so , became the first non @-@ League team to beat a side from England 's top division since 1989 . In the 2013 – 14 season , under the management of John Still , Luton won the Conference Premier championship with three games to spare , and thereby secured a return to the Football League from 2014 – 15 . 
