Great Lakes Aviation, Ltd. Reports May 2009 Traffic

CHEYENNE, Wyo., June 8 /PRNewswire-FirstCall/ -- Great Lakes Aviation, Ltd. (OTC Bulletin Board: GLUX) today announced preliminary passenger traffic results for the month of May 2009.

                      MAY 2009 AND YEAR TO DATE STATISTICS

                                    May-09       May-08       Change
    Passengers Enplaned             40,724       47,092       (13.5)%
    Revenue Passenger Miles (000)   11,190       12,753       (12.3)%
    Available Seat Miles (000)      34,483       27,882        23.7%
    Load Factor                     32.45%       45.74%       (13.3) pts
    RASM (cents)                    28.62        31.25         (8.4)%


                                    YTD 2009     YTD 2008     Change
    Passengers Enplaned             187,958      233,742      (19.6)%
    Revenue Passenger Miles (000)   51,804       62,956       (17.7)%
    Available Seat Miles (000)      164,882      138,652       18.9%
    Load Factor                     31.42%       45.41%       (14.0) pts
    RASM (cents)                    28.24        30.66         (7.9)%

Great Lakes is providing scheduled passenger service at 65 airports in seventeen states with a fleet of Embraer EMB-120 Brasilias and Raytheon/Beech 1900D regional airliners. Additional information is available at http://www.flygreatlakes.com/ including a current route map at http://www.flygreatlakes.com/route_map/route_map.pdf.

All scheduled flights are operated under the Great Lakes Airlines marketing identity in conjunction with code-share agreements with United Airlines and/or Frontier Airlines at our Albuquerque, Billings, Denver, Phoenix, Kansas City, MO and Ontario, CA hubs. The company also operates hubs in Milwaukee and St. Louis.

    Contact:  Michael Matthews, VP Finance/CFO
              (307) 432-7000