If you want to do real-time tracking of a airline flight, there are several sites that perform this type of service. But now there's a much quicker way to get to these sites with your information entered. Just use Google. If you enter an airline code and flight number in Google, it will come up with links that allow you to track this flight using several flight-tracking services. You are then just one click away from tracking your flight, which is much quicker than if you start at any one of these tracking sites.

Google flight tracking results