Northwest Airlines Joins TPG Bid forMidwest Air Group

EAGAN, Minn.–(BUSINESS WIRE)–Aug. 12, 2007–Northwest Airlines
(NYSE:NWA) today confirmed it is a passive investor in the acquisition
entity that TPG Capital, L.P. (TPG) has created to pursue an
acquisition of all of the outstanding shares of Midwest Air Group,
Inc. at $16 per share. The bid submitted by TPG is subject to the
satisfaction of certain conditions.

   Milwaukee-based Midwest Air Group operates Midwest Airlines and
Midwest Connect. The TPG offer was presented to the Midwest Air Group
board of directors on
August 12, 2007.

   NWA, which is providing financing to facilitate the transaction,
will not participate in the management or control of Midwest should
TPG acquire Midwest. The previously announced codeshare agreement
between NWA and Midwest Airlines will remain in place and the two
airlines will explore cost reduction activities such as joint fuel

   Northwest has briefed its union leadership on the transaction. The
investment contemplated is consistent with all of NWA’s union

   Northwest Airlines is one of the world’s largest airlines with
hubs at Detroit, Minneapolis/St. Paul, Memphis, Tokyo and Amsterdam,
and approximately 1,400 daily departures. Northwest is a member of
SkyTeam, an airline alliance that offers customers one of the world’s
most extensive global networks. Northwest and its travel partners
serve more than 1,000 cities in excess of 160 countries on six