As it turns out the open skies policy has not really resulted in cheaper flights for Americans flying to Europe. Couple this with a weak dollar and you get a situation where Americans flying to European cities really need to have the right flight information in order to save precious dollars. Currently the round-trip fares between European cities and American cities are in the range of $1000-$1500.
One of the things that you can do to save some travel money is to avoid the summer rush and fly before June. Research on deals, spend some time online and you may come up with some real bargain basement deals for Europe in the months of April and May. Bargains up to 50% off on the summer prices can be had. You should look up the facts on the open skies policy between the US and Europe, new routes have been added.
So you have more choice, if you are savvy with your ticket hunting increased choices could mean lower fare. A new service usually means lower fares to attract traffic. So watch out for newer routes, introductory fares are lower than standard ones.  A great bit of information for flyers to Europe is that it’s cheaper to first touch base at Heathrow in London and then move on to wherever you wish to be going. Connecting flights via London, Europe’s biggest hub, are generally cheaper than direct flights. Check code-share prices, you do not necessarily pay less for a ticket offered under a code-share agreement.