13 August 2010 Delta Air Lines has become the first airline to allow Faceb users in the U.S. to buy flight tickets without having to leave the social Dubbed Window', Users can select different search pe view results from within the application including route options, airc fbe usual times prices. Facebook booking is comple passenger and payment details and the Social network. members can also share their travel plans with friends on the such as Delta says future releases will contain more social elements, coordinating group travel more easily.