United and Instacart, launched a new collaboration that gives the airline's loyalty members even more ways to save time, earn rewards, and unlock exclusive benefits when they shop with Instacart. In a first for an airline, Instacart is offering United MileagePlus members $0 delivery fees* on orders placed right before, during or shortly after they take a domestic flight – making it effortless to replace forgotten items on the go or restock their fridge the moment they arrive home.