Considering yesterday is traditionally the busiest travel day of the year, this is probably a day too late, but check out the New York Times’ review of flight status notification systems. Just go to the airline website, find your flight, and you can get a voice or text messsage sent to you just prior to the flight, letting you know the arrival/departure gate as well as its status. I have used the American Airlines service on several occasions, and it’s pretty nifty.