I . 

Before the United States Department of Transportation 

Washington, DC 

April 30, 2010 

Essential Air Service at 

ALAMOSA, COLORADO 

CORTEZ, COLORADO 

under 49 U.S.C. 41731 et.seq. 

Docket OST-1997-2960 

Docket OST-1998-3508 

This document contains Great Lal<es Aviation, Ltd.'s response to Order Requesting 

Proposals 2010-3-34. 

Great Lakes Aviation, Ltd. is pleased to submit these proposals to provide essential air 

transportation at these points in Colorado. 

Our proposals contemplate conveniently timed connecting services to our Denver hub, whereby 

passengers may utilize our code-share agreements with United Airlines and Frontier Airlines. 

Local service will be marketed and priced utilizing the Great Lakes (ZK) brand and reservations 

system. Additionally, Great Lakes maintains interline ticketing and baggage agreements with 

the majority of the other carriers serving Denver, including interline e-ticketing agreements with 

U.S. Airways, Continental Airlines, Frontier Airlines and United Airlines. All of which will offer 

passengers traveling to and from these communities supplemental access to the domestic and 

international air transportation system. 

These proposals assume the use of pressurized 19 seat Beechcraft 1900D airliner 

equipment. 

Questions and comments may be referred to: 

Michael O. Matthews 

Chief Financial Officer 

Great Lakes Aviation, Ltd. 

1022 Airport Parkway 

Cheyenne, WY 82001 

(307) 432-7000 
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Great Lakes Aviation, Ltd. 

Annual Compensation Requirements for Essential Air Service at 

Alamosa, Colorado 

(at 98 percent completion) 

Departures: 

Block Hours: 

Revenue Passenger Miles: 

Available Seat Miles: 

1,840 

1,810 

2,595,500 

6,257,840 

Operating Revenues: 

Passenger: 14,500 .psgrsat $92.55 $1,341,975 

Other: (at 0.62% of passenger revenue) 

Total Operating Revenues: 

$8,320 

$1,350,295 

Operating Expenses: 

Direct: Aircraft and Hull Insurance 

Fuel and Oil 

Flying Operations 

Maintenance 

Total Direct Expenses: 

Total Indirect Expenses: 

Total Operating Expenses: 

Operating Loss 

Profit Element (5.0% of Total Operating Expenses) 

Annual Compensation Requirement: 

Flt# 

5054 

5055 

5056 

5057 

5058 

5059 

Freq 

1234567 

12345 

12345 

12345 7 

12345 7 

1234567 

Flow 

ALS-DEN 

DEN-ALS 

ALS-DEN 

DEN-ALS 

ALS-DEN 

DEN-ALS 

$338,710 

$941,749 

$297,329 

$488,566 

Schedule 

0600-0700 

0940-1038 

1045-1145 

1300-1358 

1408-1508 

2058-2156 

Time 

60 

58 

60 

58 

60 

58 

Equip 

BE1 

BE1 

BE1 

BE1 

BE1 

BE1 

$2,066,354 

$1,112,170 

$3,178,524 

($1,828,229) 

$158,926 

$1,987,155 
Great Lakes Aviation, Ltd. 

Annual Compensation Requirements for Essential Air Service at 

Cortez, Colorado 

(at 98 percent completion) 

Departures; 

Block Hours: 

Revenue Passenger Miles: 

Available Seat Miles: 

1,840 

2,347 

4,934,500 

9,721,204 

Operating Revenues: 

Passenger: 17,750 psgrsat $117.18 $2,079,945 

Other: (at 0.62% of passenger revenue) 

Total Operating Revenues: 

$12,896 

Operating Expenses: 

Direct: Aircraft and Hull Insurance 

Fuel and Oil 

Flying Operations 

Maintenance 

Total Direct Expenses: 

Total Indirect Expenses: 

Total Operating Expenses: 

Operating Loss 

Profit Element (5.0% of Total Operating Expenses) 

Annual Compensation Requirement: 

Fit # Freq Flow 

5106 123456 CEZ-DEN 

5107 12345 DEN-CEZ 

5108 12345 7 CEZ-DEN 

5105 1234567 DEN-CEZ 

5104 12345 7 CEZ-DEN 

5109 12345 7 DEN-CEZ 

hoH i il o 

llcUUlc ; 

Schedule 

600-713 

0910-1030 

1050-1203 

1443-1603 

1617-1730 

2056-2216 

$338,710 

$1,223,530 

$385,542 

$558,226 

Time 

73 

80 

73 

80 

73 

80 

f 

Equip 

BE1 

BE1 

BE1 

BE1 

BE1 

BE1 

$2,092,841 

$2,506,008 

$1,246,847 

$3,752,855 

($1,660,014) 

$187,643 

$1,847,657