FOR IMMEDIATE RELEASE
 

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

GREAT LAKES AVIATION TO UPGRADE ALL UNITED EXPRESS FLIGHTS BETWEEN PIERRE, SD AND DENVER TO NONSTOPS BEGINNING APRIL 2, 2000.
 

Spencer, Iowa -- March 6, 2000 -- Great Lakes Aviation, Ltd. (NASDAQ:GLUX) today announced that beginning April 2, 2000, all three of its United Express flights between Pierre, South Dakota and Denver will be upgraded from one stop to nonstop flights. This will reduce elapsed flight time by 25 minutes and result in improved connecting opportunities at United Airlines' Denver hub.A third nonstop flight has also been added on Sundays on both directions. Saturday service will continue to be two round trip flights (both nonstop).

Weekday flights will depart Pierre at 7:50am, 12:30pm, and 6:25pm. Return flights will depart Denver at 12:30pm, 3:30pm, and 8:00pm and arrive Pierre at 3:01pm, 6:01pm, and 10:31pm respectively. 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.

Pierre - Denver Schedule (effective April 2, 2000)

Pierre to Denver:

Flight 6520

Departs 7:50am

Arrives 8:25am

Operates Monday - Saturday

Flight 6520

Departs 10:20am

Arrives 10:55am

Operates Sundays

Flight 6528

Departs 11:05am

Arrives 11:40am

Operates Saturdays

Flight 6528

Departs 12:30pm

Arrives 1:05pm

Operates Sunday - Friday

Flight 6524

Departs 6:25pm

Arrives 7:00pm

Operates Sunday - Friday

Denver to Pierre (effective April 2, 2000)

Denver to Pierre:

Flight 6521

Departs 12:30pm

Arrives 12:42pm

Operates Sunday - Friday

Flight 6523

Departs 3:30pm

Arrives 3:45pm

Operates Daily

Flight 6527

Departs 5:45pm

Arrives 6:37pm

Operates Saturdays

Flight 6527

Departs 8:00pm

Arrives 8:35pm

Operates 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.