Nigel Pearson's side are eight points clear of second-placed Burnley, while they have a 13-point cushion in the automatic promotion spots as they look to bring their 10 years without top-flight football to an end.
De Laet has established himself as a regular fixture in the Leicester defence following his switch from Manchester United in 2012, featuring 27 times in all competitions this season.
The Foxes are on a formidable unbeaten run which stretches back to December, but De Laet is keen to make sure they do not get ahead of themselves.
"We're eight points ahead, but it's too early to say that the title is already ours," he said.
"But we can't let this slip anymore. After we missed promotion last season, the club has done everything to gather a strong squad."
Speaking of his personal game, De Laet said: "I'm playing as a right-back but I don't complain. I like to attack. I'm made for the offensive English playing style.
"I feel ready for the challenge in the Premier League again. At Manchester United, Stoke City and Norwich I already got my chance, but with Leicester I want to break through."
The full-back also admitted that securing a top-flight return would boost his hopes of adding to the two Belgium caps he currently has to his name.
"I really want to show I can cope with Premier League football. When we get promoted, it'll be good for my chances in the Belgian national team too," he said.
"The European Championships in 2016 are my main objective. Once I play in the Premier League, I want to convince Marc Wilmots and his scouts.
"In the current team there is no real right-back and maybe I can take advantage of it. But step by step, I know I've got to prove myself in the Premier League first.
"I'm not on the level of Kompany, Hazard or Lukaku."