Great Lakes Aviation, Ltd. announced preliminary passenger traffic results for the month of January 2015. For the month, the company reported revenue passenger miles of 2,383,000 against 6,070,000 a year ago. Available seat miles were 6,567,000 against 14,663,000 a year ago.

Load factor was 36.3% against 41.4% a year ago. RASM was 60.97 cents against 35.17 cents a year ago.