If you’re looking to travel to Europe this summer, Air Canada currently has a sub-$600 fare from Newark to Dusseldorf. I’ve seen lower fares to Europe, but a fare this low during the peak travel season is a rare find.

Details are on the FlyerTalk thread.

http://www.flyertalk.com/forum/mileage-run-deals/1329591-ac-ewr-ber-dus-596-june-july-august.html