To check a flight's status on Allegiant Air's website, select the Flight Status tab near the top of the AllegiantAir.com home page. If the website is unavailable for any reason, global flight-tacking sites such as FlightView.Com or FlightStats.com provide flight status updates for all commercial flights, including Allegiant Air.
To use AllegiantAir.com's flight status update tool, enter the flight's departure date and number, or departure and arrival airports, in the search box and click on Check Status. Allegiant Air's flight status information includes scheduled and actual departure and arrival times. Select Set Alert to receive updated text messages about a flight.
FlightView.com and FlightStats.com both offer similar search boxes to locate flight status information and also provide maps showing the real-time positions of planes along their flight paths.