CASPER, Wyo. (AP) — Allegiant Air says it plans to add twice-weekly direct flights from Casper, Wyo., to Phoenix in December.

The Casper Star-Tribune reports (http://bit.ly/QDmocj) the flights between the Casper/Natrona County International Airport and Phoenix-Mesa Gateway Airport will start Dec. 20. Keith Hansen of Allegiant says the flights initially will be offered on Sundays and Thursdays.

The airline will use MD-80 aircraft on the route. The planes can carry 166 passengers.

___

Information from: Casper (Wyo.) Star-Tribune, http://www.trib.com