Planning on going on a trip soon? Or, need to pick up a friend at the airport? In either case, you might benefit greatly by using a flight tracker to know exactly where the plane is at any moment. A few weekends ago I needed to pick up my parents at the airport, as they were visiting the town for a few days. As I was commenting to a friend that I would be picking them up at the airport, he sent me a link with a list of the best 10 flight tracker apps. Best Flight Tracking Apps To Track Flights.