Taylor Swift is coming to NRG Stadium on April 21-23 and only a few last-minute tickets are still available.The 12-time Grammy winner, midway through her dazzling, record-breaking, headline-making ‘Eras Tour,’ has already sold out venues in Arizona, Las Vegas, Arlington and Tampa over the first four weekends of the tour but the Houston shows may prove to be the most difficult to get into yet.At the time of publication, the cheapest last-minute tickets we could find for Swift’s three night-stint in the Bayou City was $608 before fees on Vivid Seats — and those are for upper-deck seats.Lower-level tickets start at $591 before fees; no floor seats we found were under $1000 from April 21-23.While those may be steep price tags, we expect prices to balloon even higher this week as we get closer to the high-profile gigs.Based on our records, tickets cost nearly double what they were a month ago (!) to see Swift live — simply put, there’s more demand to see Taylor live now than ever before.So, if you want to catch Swift this weekend at NRG Stadium and still need tickets, here’s everything you need to know before it’s too late.All prices listed above are subject to fluctuation.A complete breakdown of all the best prices on upper-deck, lower-level and floor seats for each of Taylor’s three Houston concerts can be found below.(Note: The New York Post confirmed all above prices at the publication time.