Great Lakes Aviation, Ltd. Reports June 2011 Traffic

CHEYENNE, Wyo., July 7, 2011 /PRNewswire/ — Great Lakes Aviation, Ltd. (OTC Bulletin Board: GLUX) today announced preliminary passenger traffic results for the month of June 2011.

              JUNE 2011 AND YEAR TO DATE STATISTICS

                               June-11   June-10      Change
    Passengers Enplaned         48,181    44,476        8.3 %
    Revenue Passenger Miles
     (000)                      14,810    13,273       11.6 %
    Available Seat Miles
     (000)                      31,214    31,754      (1.7) %
    Load Factor                   47.5%     41.8%    5.7 pts
    RASM (cents)                 34.78     33.18        4.8 %

                              YTD 2011  YTD 2010      Change
    Passengers Enplaned        248,555   230,010        8.1 %
    Revenue Passenger Miles
     (000)                      76,958    67,507       14.0 %
    Available Seat Miles
     (000)                     185,230   186,935      (0.9) %
    Load Factor                   41.6%     36.1%    5.5 pts
    RASM (cents)                 32.08     30.84        4.0 %

Great Lakes is providing scheduled passenger service at 42 airports in eleven 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.htm.

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, Denver, Los Angeles and Phoenix hubs.

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

SOURCE Great Lakes Aviation, Ltd.