Great Lakes Aviation, Ltd. Reports June 2009 Traffic

CHEYENNE, Wyo., July 7 /PRNewswire-FirstCall/ -- Great Lakes Aviation, Ltd.
(OTC Bulletin Board: GLUX) today announced preliminary passenger traffic
results for the month of June 2009.

JUNE 2009 AND YEAR TO DATE STATISTICS

Jun-09 Jun-08 Change
Passengers Enplaned 41,635 50,456 (17.5)%
Revenue Passenger Miles (000) 11,516 13,552 (15.0)%
Available Seat Miles (000) 33,878 29,336 15.5%
Load Factor 33.99% 46.20% (12.2) pts
RASM (cents) 29.89 33.42 (10.6)%

YTD 2009 YTD 2008 Change
Passengers Enplaned 229,593 284,198 (19.2)%
Revenue Passenger Miles (000) 63,320 76,508 (17.2)%
Available Seat Miles (000) 198,760 167,988 18.3%
Load Factor 31.86% 45.54% (13.7) pts
RASM (cents) 28.52 31.14 (8.4)%

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

SOURCE Great Lakes Aviation, Ltd.

Michael Matthews, VP Finance, CFO of Great Lakes Aviation, Ltd.,
+1-307-432-7000