Municipality's claimed injury to itself from revised airport flight-paths is insufficiently particularized to itself as a municipality to confer standing. Similarly, the losses from litigation and challenge costs aren't injuries, since the function of a municipality is to spend money on things that might benefit the citizens. Argument that the plans caused people to move away is legally and factually distinct, and therefore raised too late in the reply brief.
Since 2011. An occasional commonplacing of the U.S. Circuit Courts of Appeal.
Neither an authoritative statement of the law nor legal advice. Quick work.