Walmart and various third-party sellers take up to 45% off a selection of bathtubs. Shipping starts at $49.97, although select items ship free, as marked. A couple of best bets, both with $49.97 for shipping:

Streamline 67" Soaking Freestanding Tub w/ Internal Drain for $749.99 (pictured, low by $60)

Streamline 67" Clawfoot Tub, Faucet, and Tray Set for $899.99 (low by $78)