By dawn's early light, the pace quickens at the Frontier terminal at Stapleton.

These 580s have been sold to Metro Airlines, and are parked outside the Frontier hangar pending transfer. The others are N73108, 136, 162 and 163.

Eastbound departure out of the old Stapleton Field.

From my favorite spot at the old airport, good for traffic either direction.

Delivered to United as a CV340-31 in September, 1952. Purchased by Frontier in April, 1963 and converted to 580 in March, 1965. Seen here taxiing for a dawn departure.

Built as a CV440-12 for Sabena, OO-SCO, and sold to Frontier in September 1967 and converted to CV580 in March, 1968.

Early morning view of the Frontier gates, with Convairs and a DC-3 in the background. This 727 became N301BN with Braniff.

Seen just after lift off, this MD-82 became N14889 with CO.

First delivered to Sabena as a Convair 440 in 1956; bought by Frontier in 9.67 and placed in service following the turboprop conversion. After a period of storage, bought by Sierra Pacific in 3.88 and leased to Aspen 12.88. On 19.1.89 the no. 2 engine failed at FL200 outbound from DEN. No. 1 engine then also failed and the aircraft landed on a dirt road at Buena Vista, hitting a fence and a log pile causing the nosegear to collapse. No fatalities but dbr

Delivered to Frontier six years before this shot and to Continental in 11.86. Flown as N583CC with the Cleveland Cavaliers basketball team in a 38-seat VIP config from 2006 but de-registered by 2011

Delivered new to Frontier in December 1969, serving until sold to Continental in October 1986.

N7357F flew with Frontier from October 1982 to October 1986 when it went to Continental Airlines.

An early 737 delivered to Pacific Southwest Airlines on October 5 1968. Frontier bought it March 15, 1976 and aircraft went to Continental Airlines during their merger in 1986. Re-registered N10238, it was sold to Aero Controls Inc. November 28, 1994 and broken up July 25, 1995 at Shelton, WA.