Great Lakes Aviation, Ltd. Reports March 2008 Traffic

CHEYENNE, Wyo., April 7, 2008 /PRNewswire-FirstCall/ -- Great Lakes Aviation, Ltd. OTCBulletinBoard: GLUX today announced preliminary passenger traffic results for the month of March 2008.

Scheduled service generated 13,907,000 revenue passenger miles (RPM's), a 12.2 percent increase from the same month last year. Available seat miles (ASM's) increased 9.1 percent to 28,233,000. As a result, load factor increased 1.4 points to 49.26 percent. Passengers carried increased 12.0 percent to 51,069 when compared to March 2007. Preliminary revenue per available seat mile (RASM) increased 12.0 percent from 28.87 cents to 32.33 cents.

For the three months ending March 31, 2008 compared to the same three month period in 2007, revenue passenger miles (RPM's) increased 13.4 percent to 38,077,000 and available seat miles (ASM's) increased 13.2 percent to 82,941,000, resulting in a load factor of 45.91 percent for the year 2008 effecting an increase in load factor of 0.1 points compared to the same three month period in 2007. The company carried 141,138 revenue passengers for the three month period ending March 31, 2008, a 12.9 percent increase from the prior year. Preliminary revenue per available seat mile (RASM) increased 8.4 percent from 28.15 cents to 30.52 cents on a year-over-year basis.

    MARCH 2008 AND YEAR TO DATE STATISTICS

                                    Mar-08        Mar-07        Change
    Passengers Enplaned             51,069        45,605        12.0%
    Revenue Passenger Miles (000)   13,907        12,392        12.2%
    Available Seat Miles (000)      28,233        25,874         9.1%
    Load Factor                      49.26%        47.89%        1.4 pts
    RASM (cents)                     32.33         28.87        12.0%

                                  YTD 2008      YTD 2007        Change
    Passengers Enplaned            141,138       124,980        12.9%
    Revenue Passenger Miles (000)   38,077        33,581        13.4%
    Available Seat Miles (000)      82,941        73,252        13.2%
    Load Factor                      45.91%        45.84%        0.1 pts
    RASM (cents)                     30.52         28.15         8.4%

Great Lakes is providing scheduled passenger service at 45 airports in twelve states with a fleet of Embraer EMB-120 Brasilias and Raytheon/Beech 1900D regional airliners. A total of 234 weekday flights are mostly scheduled at five hubs, with 140 flights at Denver, 8 flights at Albuquerque, 8 flights at Phoenix, 28 flights at St. Louis and 18 flights at Kansas City, MO. All scheduled flights are operated under the Great Lakes Airlines marketing identity in conjunction with code-share agreements with United Airlines and Frontier Airlines at the Denver International Airport and Phoenix Sky Harbor International Airport hubs.

Additional information is available on the company web site that may be accessed at http://www.flygreatlakes.com

Contact: Michael Matthews, VP Finance/CFO

               (307) 432-7000