Dyche has had Burnley punching above their weight in the Premier League for seven plus seasons, which also included a brief run in Europe.
And Kightly thinks Dyche should never be threatened with the sack at Turf Moor.
"Football is a very cut throat business and if results are not going well then managers tend to go pretty quickly but I think the gaffer at Burnley should have had a job for life," Kightly told LancsLive.
"He has done wonders for the club and I think he appreciates them as much as they do him so it is a perfect relationship really.
"He is a good manager, someone you want to play for and the lads showed that in the performances in the promotion season and by how well they have done since I left by getting into Europe.
"Things like that are in a large way down to the gaffer and his coaching staff."