Led by manager John Still, the Hatters reached 101 points, finishing some 19 ahead of closest rivals Cambridge United to finally end their days in non-league. The Luton News takes a special look at where every single member of that squad that season finds themselves now.
9. Alex Lawless. Apps: 31. Goals: 6.
Midfielder had a lengthy spell with the Hatters, playing 203 times before departing. Signed by Yeovil and then went to Leyton Orient before moving to National League side Ebbsfleet in the summer.
10. Mark Cullen. Apps: 29. Goals: 8.
Will always be remembered for his last-minute goal at Cambridge that virtually assured Town of promotion. Signed by Blackpool in June 2015, he has been on loan at Carlisle and currently Port Vale, scoring eight goals this season.
11. Matt Robinson. Apps: 27. Goals: 2.
Notched a vital goal in a 2-0 win at Grimsby as Town closed in on promotion. Released in May 2016 and headed to Dagenham & Redbridge, where he has played over 100 games and is club captain.
12. Jonathan Smith. Apps: 24. Goals: 2.
Midfielder was a first team regular until a horrific injury on Boxing Day at Barnet. Stunning comeback to get on the field on the final day, as he left in 2017 and after a stint at Stevenage, now plays for Chesterfield.