Go to this page and click on "going to" pull down menu.

http://www.usairways.com/travel/destinations/europe/

Some of them are seasonal routes.

All of them fly out of PHL. CLT also has direct flights to LGW and FRA; and may be to CDG too but not sure.

New European service was announced last week to add Lisbon, Stockholm, and Milan pending foreign geovernment approval.