Content:
FlightStats:
http://www.flightstats.com
British Airways:
 http://www.britishairways.com/travel/arrdep/public/en_us 
Alaska Airline:
 http://www.alaskaair.com/ 
AmericaWest:
http://www.americawest.com/awa/flightinformation/flightstatus.aspx
Continental:
 http://www.Continental.com/ 
 http://go-today.com 
Flight Status Expedia:
 http://www.expedia.com/pub/agent.dll?qscr=flin 
Flight Status Southwest Airline:
 http://www.southwest.com/cgi-bin/selectFlight 
Flight Status Yahoo:
http://edit.travel.yahoo.com/config/ytravel_checkflight