Blue Sky Partner United is the Obvious Name in Early Talks Despite Union Distaste Just two years ago, JetBlue tried (and failed) to buy out Spirit Airlines and earn a more competitive spot against the US’s “Big Four” carrier dominance. Now, it’s quietly exploring what it would look like to be on the other side of the deal, working with advisors to evaluate potential combinations with United, Alaska, or Southwest. No formal talks are underway.