American Airlines has introduced a widget that passengers can use to find out if their upcoming flight has WiFi access or not. The tool is available at http://www.aa.com/wifiwidget — Enter your flight number or departure airport up to 24 hours before departure and the widget will let you know if WiFi connectivity will be available on your flight. American has equipped around one-fourth of its fleet with Wi-Fi, including all Boeing 767-200 aircraft and select MD80s.