Danny Welbeck recovered a point for Brighton as Leicester threw away another lead.
The striker's downward header from Neal Maupay's cross beat goalkeeper Kasper Schmeichel via the post in the 82nd minute to seal a 1-1 draw on Sunday.
Graham Potter's side have scored after the 80th minute in five of their last nine games to snatch points, this time canceling out Patson Daka's close-range goal from a minute into the second half.
Host Leicester narrowly avoided another complete collapse.
Days after conceding two stoppage-time goals to lose 3-2 to Tottenham, Leicester needed Youri Tielemans to clear off the line from Dan Burn and Schmeichel to save from Leandro Trossard to protect the draw.
It dented Leicester's lingering European hopes while a point will embolden the Seagulls, who remain four points above the 10th-place Foxes.
Source: m.allfootballapp.com