Great Lakes Aviation, Ltd. Reports March 2009 Traffic

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

MARCH 2009 AND YEAR TO DATE STATISTICS

Mar-09 Mar-08 Change
Passengers Enplaned 37,895 51,069 (25.8)%
Revenue Passenger Miles (000) 10,484 13,907 (24.6)%
Available Seat Miles (000) 33,345 28,233 18.1%
Load Factor 31.44% 49.26% (17.8) pts
RASM (cents) 28.31 32.33 (12.4)%

YTD 2009 YTD 2008 Change
Passengers Enplaned 110,352 141,138 (21.8)%
Revenue Passenger Miles (000) 30,513 38,077 (19.9)%
Available Seat Miles (000) 96,759 82,941 16.7%
Load Factor 31.54% 45.91% (14.4) pts
RASM (cents) 28.29 30.52 (7.3)%

Great Lakes is providing scheduled passenger service at 66 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