JetBlue is interesting as it has seemed to me in the past that a tie up or code share with Jet2 for transatlantic flights from JFK into the likes of Jet2 bases such as Stansted Belfast Leeds and Newcastle which do not have much or any USA flights would work well. JetBlue passengers could be fed onto European flights with Jet2 whilst Jet2 passengers could be fed onto the JetBlue extensive USA network.