One of the best flight apps around, FlightTrack Pro tracks more than 1,400 airlines at more than 3,000 airports worldwide. You’ll get push alerts for flight updates, Federal Aviation Administration airport delays and closures and terminal maps for airports. The app also connects to your TripIt itinerary, and the iOS version syncs with your phone’s calendar. If you connect to in-flight wireless, you can see a map with an icon showing your actual plane route. This helps you know whether you can keep working or prepare for arrival.