United and JetBlue carefully crafted their Blue Sky partnership to avoid any regulatory concerns. The airlines aren’t codesharing, there is no pricing or schedule coordination, and in general, they’ve followed the guidance that the judge who shot down the Northeast Alliance (NEA) between American and JetBlue gave on how to construct a legal partnership. But that doesn’t mean that everyone is happy just letting this happen without a fight. Nobody should be surprised to hear that Spiri...