Oscar De La Hoya -- Chillin' with Jerry Jones ... Here's Why.

The superfight at Jerry World is one step closer to fruition ... 'cause Oscar De La Hoya met with Jerry Jones Thursday to discuss Canelo Alvarez vs. GGG at AT&T Stadium.

As we previously reported, Gennady Golovkin's camp had been in touch with Jones -- who expressed great interest in hosting the fight at his mega-stadium in Dallas in September.

Well, Oscar reps Canelo -- and made the trip to Big D to push along the conversation ... and by the looks of things, it's going well.

There are two other venues in the running -- the MGM Grand in Vegas and NYC's Madison Square Garden ... but we're told both sides REALLY want to make this thing happen in Dallas.

BTW, we spoke with GGG earlier this week about the prospect of fighting at AT&T Stadium -- and the guy was PUMPED ... telling us it would be "HUGE" for the sport.