Walmart has some Lodge on sale. As usually (though not always) Walmart leads on Lodge sales, and Amazon usually is forced to match.
Lodge 4 Quart Seasoned Cast Iron Dutch Oven, P10D3, with Cast Iron Cover
Lodge 8" Seasoned Cast Iron Serving Pot, L2SP3, with Cast Iron Lid, $24.29
Though not totally free shipping as Prime, they ship free for orders at $35.