Fly to London, Madrid, Rome and other European cities on airlines like Delta and AA from $446 round-trip

Carriers such as American Airlines, Delta Air Lines and United Airlines are offering strong discounts on fall and winter fares to Europe right now. This deal includes flights to evergreen tourist favorites like Amsterdam, London, Madrid, Paris and Rome, some available for less than $500 round-trip. These itineraries all have layovers and depart from New York …