Flight Caster – Flight times are always prone to change, and delays are not caused only due to bad weather. If you wish to stay on top of your flight’s actual departure time, you could visit (and re-visit) your airline’s website or call that 1-800 number. However, FlightCaster offers an even better service, sending delay alerts up to 6 hours before airlines’ notification. Moreover, there is a FlightCaster iPhone/Blackberry application available ($7.99 on the App Store) which will really come in handy when you don’t have computer access.