Delta launched its Ticket Counter app on Facebook late last year, which allowed you to book your flights and check your flight status. It has now added the ability to check in, via Facebook, 24 hours prior to your flight with Facebook Check Ins. The app also allows you to share information on your flight with your friends and details on your itinerary. All in all, it means that you don’t have to leave Facebook in scheduling and checking in for your flight.
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