Frontier Airlines' Platinum status provides valuable perks, including companion fares later this year. With this fast-track ...

Frontier Airlines will have to compete with American Airlines and United Airlines on two out of the three routes.

Denver-based Frontier Airlines says it’s ready to keep talking after bankrupt Spirit Airlines rejected its offer to merge.

Spirit, which filed for bankruptcy protection last year, says it has rejected the new Frontier overture but would be open to ...