FOR IMMEDIATE RELEASE

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

GREAT LAKES AVIATION TO ADD UNITED EXPRESS FLIGHTS BETWEEN CHEYENNE, WYOMING AND DENVER BEGINNING APRIL 2, 2000.

Spencer, Iowa -- March 6, 2000 -- Great Lakes Aviation, Ltd. (NASDAQ:GLUX) today announced that beginning April 2, 2000, two weekday United Express flights will be added between Cheyenne, Wyoming and Denver International Airport. On weekdays a total of eight round trips will be scheduled in the market. On Saturdays five round trips will be offered with seven available on Sundays.

The new United Express flight will depart Cheyenne at 7:45am and 10:13am filling gaps in the current schedule pattern. New return flights will depart Denver at 1:00pm and 7:45pm arriving Cheyenne at 1:39pm and 8:24pm respectively. In addition, some of the existing flights in each direction have been retimed to offer more convenient travel times for passengers. All flights are timed to make convenient connections with more than 450 nonstop flights scheduled by United Airlines and United Express from Denver to more than 120 Destinations.

Cheyenne - Denver Schedule (effective April 2, 2000)

Cheyenne to Denver:
Flight 6338 Departs 6:45am Arrives 7:22amOperates Monday - Saturday
Flight 6330Departs 7:45amArrives 8:22amOperates Daily
Flight 6346Departs 8:45amArrives 9:22amOperates Sunday - Friday
Flight 6334Departs 10:13amArrives 10:50amOperates Daily
Flight 6348Departs 12:30pmArrives 1:07pmOperates Daily
Flight 6336Departs 2:00pmArrives 2:37pmOperates Daily
Flight 6340Departs 4:28pmArrives 5:05pmOperates Sunday - Friday
Flight 6342Departs 6:00pmArrives 6:37pmOperates Sunday - Friday

Denver to Cheyenne (effective April 2, 2000)

Denver to Cheyenne:
Flight 6333Departs 9:15amArrives 9:54amOperates Monday - Saturday
Flight 6347Departs 11:30amArrives 12:09pmOperates Daily
Flight 6335Departs 1:00pmArrives 1:39pmOperates Daily
Flight 6349Departs 3:30pmArrives 4:09pmOperates Daily
Flight 6341Departs 5:00pmArrives 5:39pmOperates Sunday - Friday
Flight 6343Departs 6:45pmArrives 7:24pmOperates Daily
Flight 6331Departs 7:45pmArrives 8:24pmOperates Sunday - Friday
Flight 6337Departs 8:45pmArrives 9:24pmOperates Sunday - Friday

Beginning April 2, 2000, Great Lakes Aviation will be providing United Express flights at 61 airports in 14 states with a fleet of eight Embraer-120 Brasilias and 40 Raytheon/Beech 1900D regional airliners.


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