Great Lakes to expand United Express North Dakota Service

FOR IMMEDIATE RELEASE

Contact: Dick Fontaine
Senior VP- Marketing
(712)264-3190
(712)262-1000

GREAT LAKES AVIATION TO EXPAND ITS UNITED EXPRESS NORTH DAKOTA AIR SERVICE.

Spencer, Iowa -- September 1, 1998 -- Great Lakes Aviation, Ltd. (NASDAQ:GLUX) announced today the expansion of its United Express schedules in North Dakota.

Beginning October 25, 1998 Great Lakes Aviation will upgrade all six nonstop round-trip United Express flights between Bismarck and Denver to 30-seat Embraer EMB-120 regional airliners. This schedule enhancement will increase available seats by over 70 percent between the two cities.

In addition, beginning October 1, 1998 a third nonstop round-trip United Express flight will be added between Dickinson, North Dakota and Denver International Airport. All flights serving Dickinson will also serve Williston, North Dakota.

Great Lakes also currently operates three nonstop round-trip United Express flights between Fargo and Chicago-O'Hare International Airport. In addition, three United Express round-trip flights are currently scheduled from Devils Lake and Jamestown to Minneapolis/St. Paul International Airport.

For the duration of the current Northwest Airlines curtailment of service, passengers originally ticketed for travel on Northwest Airlines may be accommodated on any United Express flights at the six communities served in North Dakota without penalty or additional restrictions.

Information regarding the expanded North Dakota air service planned for October or concerning current United Express flights in North Dakota may be obtained from any travel agent or United Airlines at 800-241-6522.

Great Lakes Aviation is currently providing United Express service at 68 airports in thirteen states with a fleet of eight Embraer EMB-120 Brasilias and 40 Beechcraft 1900D regional airliners.

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