Law enforcement and fire officials were investigating a potential threat on a plane at Denver International Airport, but police later said the threat was unfounded.

Denver-based Frontier Airlines is adding four new nonstop routes this fall from Denver International Airport, increasing its total number of nonstop flights from DIA to 72 destinations.

Starting Oct. 7, low-cost carrier Frontier Airlines is expanding its network with 15 different routes, according to the airline. Best of all, Frontier is celebrating with introductory fares as low as $29.

Frontier Airlines has announced four new flight routes from Denver International Airport to begin this October.

Frontier ceased flying to Tulsa in March 2022, citing a shortage of aircraft. Promotional-fare tickets must be purchased by Monday, July 28.

RICHMOND — Richmond International Airport recently announced a partnership with Frontier Airlines, with the ultra-low fare airline launching new nonstop service to Atlanta and Denver starting in October.

Frontier Airlines recently announced 15 new routes, including a direct flight from Salt Lake City International Airport to John Wayne Airport in Santa Ana, California, to start this fall.

If you frequently fly Frontier and don't mind paying an annual fee, it may be worth picking up the airline's card. But you don't need it to earn a companion pass.