Las Vegas Sun

April 29, 2016

Currently: 74° — Complete forecast

In this Feb. 22, 2010, file photo, Frontier Airlines jetliners sit stacked up at gates along the A concourse at Denver International Airport.

David Zalubowski / AP

In this Feb. 22, 2010, file photo, Frontier Airlines jetliners sit stacked up at gates along the A concourse at Denver International Airport.