Trying to book a flight can be stressful because the fares are constantly changing. Flight Alert lets you watch a flight you are interested in and sends you a notification if the price goes down.
You can watch as many flights as you wish and check the price history of each flight from the time you start watching until the day of the flight.
Flight Alert will tell you which Airline has the current lowest price for the flight you are interested in and will notify you if an airline has a drop in price.
Currently, you will need to book the flight yourself through your favorite travel portal when you are ready. Flight Alert is there to try to help you know when to get the best price.