The real problem will come if the EU says that Scotland has to join both the euro and Schengen
In fact you'd expect MORE air travel into an independent Scotland - for a start every UN agency and NGO will set up an office in Edinburgh (no-one will go to Glasgow) and they'll all have to travel back and forth to London to get anywhere else outside Europe
Then there will be the IMF making regular visits to make sure that the Stabilisation Plan is working after the currency crashes.............