$434 RT Flights US Cities to Europe

Major Europe sale is back!!! Flights starting at $434 RT, generally on American Airlines (though other airlines are matching), travel August - March, excluding Christmas/NYE**. Jump on this deal quickly

**We also found two flights to Barcelona over Christmas/NYE from IAD ($497 RT) or LAX ($600 RT!!! So, other destinations may be available too.

Washington DC/Chicago/Boston/New York/Los Angeles/San Francisco, USA

Dublin, Ireland
Rome, Italy
Barcelona/Madrid/Ibiza/Palma de Mallorca/Valencia/Bilbao, Spain
Paris/Nice, France
Vienna, Austria
London, UK
Munich/Frankfurt/Dusseldorf, Germany
Amsterdam, Netherlands
Porto, Portugal
Brussels, Belgium
Geneva/Zurich, Switzerland

Booking: use Google Flights to find a working date, then proceed to book with Momondo for cheapest fares.  Found first on Secret Flying.