Allegiant's new deal features flights to and from Phoenix-Mesa Gateway Airport (IWA). Book tickets by August 27.
United's new Hawaii offer competes with sales from American and Delta. Maui, Oahu, and the Big Island are featured.
Boston, Las Vegas, Miami, and Washington, D.C., are included in American's new offer, which competes with a recent deal from AirTran. Travel is valid through mid-November.
