Apart from a few select cases (such as LHR
), international traffic is rarely to blame for the traffic problems at major airports. It is my opinion, therefore, that international traffic need not be penalized, ie in terms of diverting it away from airlines' preferred airports. Think O'Hare--if hundreds of RJs to Moline and South Bend and the like are the problem, why make a London-bound 747 land at Gary, or (god forbid) Peotone?
While I don't think "alternate" airports in the NYC area (which does not by any means include PHL
) should be considered for diverting international traffic, I do believe that in some cases secondary regional markets (BDL
again, for instance, or SAN
) have enough traffic to support international service that is currently being "routed" through another, larger airport. In other words, if we ever see a flight from BDL
to London, it's going to be because a market actually exists at BDL
, not because JFK
needs to alleviate congestion.