Midwest Air Group Reports August Performance

MILWAUKEE, Sept. 13 /PRNewswire-FirstCall/ — Midwest Air Group, Inc. (AMEX:MEH) today reported August performance data, including record traffic and load factors for the month.

At the group level, a 28.2% increase in traffic outpaced a 22.8% increase in capacity, resulting in a 3.4 percentage point increase in load factor compared with August 2006. Revenue per total available seat mile decreased 1.6% in the same time period.

              Midwest Air Group, Inc. — Performance Report

                                                     Eight Months Ended

                             August                       August 31,

                    2007     2006   %Change     2007       2006    %Change

  Midwest Air Group

  Scheduled

   Service

   Revenue

   Passenger

   Miles (000s)   463,874    361,707  28.2   3,250,991  2,785,714    16.7

  Scheduled

   Service

   Available

   Seat Miles

   (000s)         565,646    460,464  22.8   4,065,208  3,585,566    13.4

  Total

   Available

   Seat Miles

   (000s)         567,130    462,262  22.7   4,091,261  3,630,507    12.7

  Load Factor (%)   82.0%      78.6%   3.4pts    80.0%      77.7%     2.3pts

  Revenue Yield

   (estimate)     $0.1393    $0.1464  (4.9)    $0.1384    $0.1427    (3.0)

  Passenger

   Revenue per

   Schd. Svc.

   ASM (estimate) $0.1142    $0.1150  (0.7)    $0.1107    $0.1109    (0.2)

  Total Revenue

   per Total ASM

   (estimate)     $0.1249    $0.1269  (1.6)    $0.1232    $0.1231     0.1

  Number of

   Flights         11,029      9,726  13.4      78,313     74,297     5.4

  Into-plane Fuel

   Cost per

   Gallon

   (estimate)       $2.12      $2.36 (10.3)      $2.12      $2.19    (3.2)
  Midwest Airlines Operations

  Origin &

   Destination

   Passengers     349,620    318,862   9.6   2,670,645  2,458,021    8.7

  Scheduled

   Service

   Revenue

   Passenger

   Miles (000s)   400,333    337,108  18.8   2,963,358  2,608,913   13.6

  Scheduled

   Service

   Available

   Seat Miles

   (000s)         480,422    426,511  12.6   3,662,674  3,328,429   10.0

  Total

   Available

   Seat

   Miles (000s)   481,906    428,309  12.5   3,688,727  3,373,004    9.4

  Load Factor (%)   83.3%      79.0%   4.3pts    80.9%      78.4%    2.5pts

  Revenue Yield

  (estimate)      $0.1199    $0.1298  (7.6)    $0.1228    $0.1272   (3.4)

  Passenger

   Revenue per

   Schd. Svc.

   ASM (estimate) $0.0999    $0.1026  (2.6)    $0.0994    $0.0997   (0.3)

  Total Revenue

   per Total ASM

   (estimate)     $0.1129    $0.1163  (2.9)    $0.1139    $0.1138    0.1

  Average

   Passenger Trip

   Length (miles)   1,145      1,057   8.3       1,110      1,061    4.5

  Number of

   Flights          4,689      4,725  (0.8)     37,713     36,036    4.7

  Into-plane Fuel

   Cost per Gallon

   (estimate)       $2.13      $2.35  (9.6)      $2.11      $2.18   (3.0)
  Midwest Connect

   Operations

  Origin &

   Destination

   Passengers     148,351     78,162  89.8     775,335    560,886    38.2

  Scheduled

   Service

   Revenue

   Passenger

   Miles (000s)    63,541     24,599 158.3     287,633    176,802    62.7

  Scheduled

   Service

   Available Seat

   Miles (000s)    85,224     33,953 151.0     402,534    257,136    56.5

  Total Available

   Seat Miles

   (000s)          85,224     33,953 151.0     402,534    257,503    56.3

  Load Factor (%)   74.6%      72.4%   2.2pts    71.5%      68.8%     2.7pts

  Revenue Yield

  (estimate)      $0.2617    $0.3743 (30.1)    $0.2988    $0.3724   (19.7)

  Passenger

   Revenue per

   Schd. Svc. ASM

   (estimate)     $0.1951    $0.2712 (28.1)    $0.2135    $0.2560   (16.6)

  Total Revenue

   per Total

   ASM

   (estimate)     $0.2084    $0.3012 (30.8)    $0.2351    $0.2871   (18.1)

  Average

   Passenger Trip

   Length (miles)     428        315  36.1         371        315    17.7

  Number of

   Flights          6,340      5,001  26.8      40,600     38,261     6.1

  Into-plane

   Fuel Cost

   per Gallon

   (estimate)       $2.08      $2.41 (13.6)      $2.13      $2.23    (4.5)
  Note: All statistics exclude charter operations except total available

        seat miles, total revenue per total available seat miles and

        into-plane fuel cost. Numbers may not recalculate due to rounding.

This performance report includes operating statistics for the 50-seat regional jet fleet operated by SkyWest Airlines, affecting year-over-year comparisons for Midwest Air Group and Midwest Connect. That service, which launched April 1, 2007, has allowed for the opening of new markets as well as the conversion to Midwest Connect of some flights previously flown by Midwest Airlines.

Readers of Travel+Leisure named Midwest Airlines “Best Domestic Airline” in the magazine’s 2007 World’s Best Awards competition. The airline features jet service throughout the United States, including Milwaukee’s most daily nonstop flights and best schedule to major destinations. Catering to business travelers and discerning leisure travelers, the airline earned its reputation as “The best care in the air” by providing passengers with impeccable service and onboard amenities at competitive fares. Both Skyway Airlines, Inc. — a wholly owned subsidiary of Midwest Airlines — and SkyWest Airlines, Inc. operate as Midwest Connect and offer service to and connections through Midwest Airlines’ hubs. Together, the airlines offer service to 53 cities. More information is available at http://www.midwestairlines.com/.

First Call Analyst:
FCMN Contact:

Source: Midwest Air Group, Inc.

CONTACT: Media, Carol Skornicka, +1-414-570-3980, cell,
+1-414-303-6516, Carol.Skornicka@midwestairlines.com, or Analysts|Investors,
Dennis O’Reilly, +1-414-570-3954, Dennis.O’Reilly@midwestairlines.com, both of
Midwest Air Group, Inc.

Web site: http://www.midwestairlines.com/