Great Lakes to add flights at Pellston, MI for duration of Northwest strike

GREAT LAKES AVIATION TO ADD FLIGHTS AT SpELLSTON, MICHIGAN FOR THE DURATION OF THE NORTHWEST AIRLINES STRIKE.

Spencer, Iowa -- September 10, 1998 -- Great Lakes Aviation, Ltd. (NASDAQ:GLUX) announced today the temporary addition flights at Pellston, Michigan.

Great Lakes Aviation normally reduces its United Express flights between Pellston, Michigan and Chicago O'Hare during the off-peak months of September through May of each year. As previously announced, Great Lakes had planned to discontinue all service at Pellston after October 7, 1998 in response to higher levels of Northwest Airlink service provided by Mesaba Airlines to both Detroit Metro and Minneapolis/St. Paul.

In view of the temporary curtailment of Northwest Airlines and Northwest Airlink flights which would leave Pellston with a single round trip flight daily, Great Lakes will add a second United Express round trip to Chicago on weekdays and Sundays beginning September 15th. The added flights are planned to operate through September 30 only. Should the Northwest Airlink service to Detroit and Minneapolis/St. Paul be delayed beyond that date, United Express flights to Chicago will be extended for additional periods of time as needed.

These added flights will appear in United's Apollo reservations system on Tuesday, September 15th and in other reservations systems on Saturday, September 19th. Passengers may call United Airlines for reservations and information at 1-800-241-6522.

For the duration of the current Northwest Airlines curtailment of service, passengers originally ticketed for travel on Northwest Airlines or Northwest Airlink flights may be accommodated on any United Express flight under the terms of the agreement between United Airlines and Northwest Airlines covering the acceptance of Northwest Airlines tickets.

Flight	Depart	Arrive	Frequency	Remarks
Pellston, MI to Chicago-O'Hare
5944	11:00a	11:45a	Daily	One Stop
5980	8:10p	8:33p	Ex Sa	Non Stop

Chicago-O'Hare to Pellston, MI
5941	8:00a	10:45a	Daily	One Stop
5981	5:35p	7:55p	Ex Sa	Non Stop

This schedule will be extended beyond September 30, 1998 as needed until Northwest Airlink service to Detroit and/or Minneapolis is in place.

Great Lakes Aviation is currently providing United Express service at 69 airports in thirteen states with a fleet of eight Embraer EMB-120 Brasilias and 40 Beechcraft 1900D regional airliners.