Call USAirways reservations at 800-428-4322 and ask to speak to the group desk. We service AVP from both hubs PHL and PIT. Though with that many people traveling it may be cheapest to charter a flight, you could ask the group desk about charters. Scranton is also around 125 miles from both Philadelphia and NYC. The trip would take around 3 hours. You will have to price the trip several different ways to see what is the cheapest.