The rapper is scheduled to host on Saturday, May 7 at hotspot E11EVEN -- where he appears to be the headlining act for Race Week. There's a Formula 1 Grand Prix that'll be going down around the same time ... so it's gonna be popping in and around the city.

According to promotional flyers and E11EVEN's own website ... tickets are on sale now at a price point of $150 to $250, depending on whether you're a man or woman. Ladies get in cheaper, obviously. Page Six was first to notice the event. We have been told that it's almost sold out ... and demand is sky-high.

VIP tables are also available for reservation as well ... and those can go for a pretty penny, reportedly upwards of $100k depending on what's happening. Considering this will be Travis' first foray, musically, before a large crowd ... ya gotta imagine the cost will be higher.

This certainly isn't the first time TS has grabbed a mic since the Astroworld Fest tragedy in November, when 10 people died. He's been dabbling in smaller performances in the months thereafter -- including a limited set at a pre-Oscars party, ditto for a Coachella afterparty.

At both events, there seemed to be some enthusiasm around his presence ... but time will tell if a club like E11EVEN can muster a large crowd. The jury's sorta out on how people feel about him these days.

At first, there was a lot of anger directed at him ... as some felt he continued the show despite seemingly obvious signs folks were in distress -- but in the wake of all that, there's been different evidence suggesting he may have, in fact, been in the dark on the severity.

Still, he's in the middle of several lawsuits that have named him as a defendant ... and that'll take years to work through the court system. In the meantime, he's making a comeback -- or trying to, anyway.