Kmart offers the LEGO Creator Blue Power Jet, model no. 31039, for $55.99 with free shipping. That's the lowest total price we could find by $6. It can be made into a jet, helicopter, or hovercraft. It includes movable wings, ailerons and rudders, folding undercarriage, accessible engine compartment, twin vertical stabilizers with movable flaps, semicircular air intakes, navigation lights and an exhaust.
Of note, Shop Your Way Rewards members will earn a Kmart credit with this purchase and may be eligible for additional credits and discounts.