 The last flight was on December 8, 2016 and it was replaced by Phoenix Airfield  with flights expected to start in February 2017.

Pegasus was originally conceived as a blue ice runway capable of handling wheeled aircraft year-round, but as it was developed, it was enhanced with a 4-inch layer of compacted snow on top—thus more properly characterizing it as a white ice runway.Other local runways are the snow runways at Williams Field that are limited to ski-equipped aircraft, and the Ice Runway on the sea-ice available during the summer Antarctic field season.The field is named after "Pegasus", a C-121 Lockheed Constellation that made a forced landing on unprepared terrain in bad weather on October 8, 1970.