Check airport arrival and departure time,delay or track flight status real time

Recently,I have a friend who ask me about the arrival time of Cathay pacific flying from Hong Kong to Los Angeles.Do you know that you can actually check the arrival and departure time from the comfort of your home.Just go to this website http://www.flightstats.com/go/Home/home.do .I find it extremely useful as it provides the flight time and status in real time whether they are on time or there is a delay. All you have to do is key in the airport information and viola, all the flight details being displayed. And for those aviation enthusiast , they even have the aircraft type and terminating destinations.