Denver-based ultra-low-cost carrier Frontier introduces new GoWild! — summer subscription, similar to the annual subscription. Travelers can fly all summer for $399, USAToday reports. This new pass allows customers to fly as often as they want between May 2 and...

Seattle-based Alaska Airlines has launched Flight Pass, a subscription-based ticketing program that will allow West Coast travelers to access flights from 13 major California airports for as little as $49 a month, Tripsavvy reported. Members can make up to…