Mesaba Aviation, Inc. Reports Capacity and Traffic for December

Business Wire, Jan 6, 2005

MINNEAPOLIS & ST. PAUL, Minn. -- Mesaba Aviation, Inc., a subsidiary company of MAIR Holdings, Inc. (NASDAQ:MAIR), today reported capacity and traffic for December. Mesaba Aviation flew 267.6 million available seat miles (ASMs) in December, which was up 9.1% year over year. Mesaba Aviation carried 464,126 passengers in the month, which was down 3.9% year over year generating 170.4 million revenue passenger miles (RPMs). Passenger load factor, representing capacity filled, remained constant year over year at 63.7%

Separately, Mesaba Aviation announced its operating performance for the month of December:

December
--------
                                      2004        2003       Change
                                      ----        ----       ------
Completion Factor                     95.6%       98.0%    (2.4) pts.
Arrivals within 14 minutes            65.2%       77.2%    (12.0) pts.

Following are capacity and traffic results:

December
--------
                                     2004        2003       Change
                                     ----        ----       ------
ASMs (000)                          267,629     245,222       9.1%
RPMs (000)                          170,429     156,321       9.0%
Load Factor                           63.7%       63.7%     0.0 pts.
Passengers                          464,126     482,852      (3.9)%

Fiscal Year to Date (9 Months)
------------------------------
                                    FY 2005     FY 2004     Change
                                    -------     -------     ------
ASMs (000)                         2,307,487   2,251,391      2.5%
RPMs (000)                         1,528,489   1,399,811      9.2%
Load Factor                           66.2%       62.2%     4.0 pts.
Passengers                         4,290,221   4,457,906     (3.8)%

Calendar Year to Date (12 Months)
---------------------------------
                                    CY 2004     CY 2003     Change
                                    -------     -------     ------
ASMs (000)                         2,960,293   2,939,178      0.7%
RPMs (000)                         1,903,610   1,774,335      7.3%
Load Factor                           64.3%       60.4%     3.9 pts.
Passengers                         5,429,036   5,697,388     (4.7)%

Mesaba Aviation, Inc., d/b/a Mesaba Airlines, operates as a Northwest Jet Airlink and Northwest Airlink partner under service agreements with Northwest Airlines. Currently, Mesaba Aviation serves 111 cities in 32 states and Canada from Northwest's and Mesaba Aviation's three major hubs: Detroit, Minneapolis/St. Paul, and Memphis. Mesaba Aviation operates an advanced fleet of 99 regional jet and jet-prop aircraft, consisting of the 69-passenger Avro RJ85 and the 30- 34-passenger Saab SF340.

MAIR Holdings, Inc. is traded under the symbol MAIR on the NASDAQ National Market.

More information about Mesaba Airlines is available on the Internet at: http://www.mesaba.com