Financial

Great Lakes Aviation to remain listed on NASDAQ-Small Cap Market

Great Lakes Aviation to be listed on NASDAQ-Small Cap Market effective July 16, 1998

Service and Other

Great Lakes Aviation closes Springfield, IL. maintenance base; Scheduled service to Chicago to continue without changes.

Great Lakes Aviation to add flights at Pellston, MI for the duration of the Northwest Airlines strike.

Great Lakes Aviation to continue flights at Sault Ste. Marie and Alpena, Michigan for the duration of the Northwest Airlines Strike.

Great Lakes Aviation to expand its United Express North Dakota air service.

Great Lakes Aviation announce conversion of Chicago-Meigs Field flights to United Express starting June 15.

Great Lakes Aviation to upgrade United Express service at Scottsbulff, Nebraska beginning June 1.

Great Lakes Aviation to acquire B1900D aircraft from Mesa Air Group

Great Lakes Aviation announces expansion of United Express flying at Denver starting April 23.

Service and Other

Great Lakes Aviation reports record 48.8% load factor for November; Traffic up 50.0%

Great Lakes Aviation reports record 51.3% load factor for October; Traffic up 59.2%

Great Lakes Aviation reports strong August, 1998 traffic with load factor at 57.1%

Great Lakes Aviation reports strong July, 1998 traffic with load factor at 56.1%

Great Lakes Aviation reports June and Second Quarter, 1998 traffic; Second quarter results sets a record for the company with load factor up 5.8 points to 51.1%

Great Lakes Aviation reports May, 1998 traffic; Load factor up 3.9 points to 49.2%

Great Lakes Aviation reports March, 1998 traffic; Load factor up 3.9 points to 48.0%

Great Lakes Aviation reports February, 1998 traffic; Load factor up 4.2 points to 45.0%

Great Lakes Aviation reports January, 1998 traffic; Load factor up 3.4 points to 42.7%