Make your Las Vegas hotel reservation at Treasure Island TI Hotel Casino and Resort. Check room rates, hotel packages, booking deals and promotion codes. Fresh from a recent remodeling, the room resort has pulled back from its The pool is crowded, the casino is small, and top-notch Vegas entertainment is. Book Treasure Island - TI Hotel & Casino, Las Vegas on TripAdvisor: See Room & Suite () . We feel so welcomed at Treasure Island and so spoiled!.