2015 is the new way to cross the atlantic
The best way to get to europe now is on two airlines if you are on a budget. These two airlines are WOW airlines and Norwegian Air Shuttle. The only issue is the only way to book a plane ticket with WOW airlines is to book it through their website. They are not in the Global ITA Matrix like most airlines are.
WOW airlines is based out of Iceland and all flights to europe go through Reykjavik, Iceland. It has many flight from Reykjavik to Europe but only a handful to the USA. These include Boston airport 3 times a week as well as Baltimore Airport twice a week. You can always count on ecovuelos barato vuelos to get you the best prices on all airfare including those flight on airlines that are not in the main database system.
Lastly make sure to check out the rest of Eco Vuelos great Opportunities to travel with the links below: