If you're still on the prowl for a great summer fare to Europe, this should do the trick. Fly from Newark to Dusseldorf for $667 round-trip, including all taxes, on Lufthansa/United. We found dates available for peak summer, mid-July! Similarly low fares available on other dates in summer. Grab it while you can!
For a complete list of current deals, visit our Dusseldorf fare page.