US AIRWAYS COMPLETES SALE OF AIRCRAFT
AND SLOT ASSETS TO REPUBLIC AIRWAYS

ARLINGTON, Va., Sept. 22, 2005 -- US Airways Group, Inc. has today completed the sale of certain Embraer regional jet aircraft and slot assets to Republic Airways Holdings, generating approximately $90 million in liquidity for US Airways as it completes its Chapter 11 restructuring and merger with America West Airlines. The regional jets and the slots will continue to operate as US Airways Express.

Under the terms of the asset sale agreement, Republic will purchase or assume the leases of 25 Embraer 170 aircraft from US Airways, and will operate them in the US Airways network under a regional jet service agreement that has been negotiated and approved by the U.S. Bankruptcy Court. Three additional Embraer 170s that had been slated for delivery to US Airways were purchased by Republic directly from the manufacturer.

In addition, US Airways has sold, and then leased back from Republic, commuter slots at Ronald Reagan Washington National and New York LaGuardia airports.

"Republic Airways has been operating as a US Airways Express carrier since earlier this month, and we are pleased to complete this additional step in our expanded relationship as well as in our restructuring efforts," said Bruce R. Lakefield, US Airways president and chief executive officer.

Other Embraer 170 assets, including a flight simulator and spare parts needed to support the aircraft operations, also are planned to be part of the transaction. The purchase of these assets is expected to be completed in the next few weeks.

As previously announced by US Airways, the Republic asset sale transaction represents approximately $100 million in cash that is built into the Plan of Reorganization approved by the U.S. Bankruptcy Court on Sept. 16, 2005.

FORWARD-LOOKING STATEMENTS
Certain of the statements contained herein should be considered "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995, which reflect the current views of US Airways Group with respect to current events and financial performance. You can identify these statements by forward-looking words such as "may," "will," "expect," "intend," "anticipate," "believe," "estimate," "plan," "could," "should," and "continue" or similar words. These forward-looking statements may also use different phrases. Such forward-looking statements are and will be, as the case may be, subject to many risks, uncertainties and factors relating to the Company's operations and business environment which may cause the actual results of the Company to be materially different from any future results, express or implied, by such forward-looking statements. Factors that could cause actual results to differ materially from these forward-looking statements include, but are not limited to, the following: the ability of the Company to continue as a going concern; the ability of the Company to obtain and maintain any necessary financing for operations and other purposes; the ability of the Company to maintain adequate liquidity; the ability of the Company to absorb escalating fuel costs; the Company's ability to obtain court approval with respect to motions in the Chapter 11 proceedings prosecuted by it from time to time; the ability of the Company to consummate its plan of reorganization with respect to the Chapter 11 proceedings and to consummate all of the transactions contemplated by the plan of reorganization or upon which consummation of the plan is conditioned; the ability of the Company to obtain and maintain normal terms with vendors and service providers; the Company's ability to maintain contracts that are critical to its operations; the potential adverse impact of the Chapter 11 proceedings on the Company's liquidity or results of operations; the ability of the Company to operate pursuant to the terms of its financing facilities (particularly the financial covenants); the ability of the Company to fund and execute its business plan during the Chapter 11 proceedings and in the context of its plan of reorganization and thereafter; the ability of the Company to attract, motivate and/or retain key executives and associates; the ability of the Company to attract and retain customers; the ability of the Company to maintain satisfactory labor relations; demand for transportation in the markets in which the Company operates; economic conditions; labor costs; financing availability and costs; security-related and insurance costs; competitive pressures on pricing (particularly from lower-cost competitors) and on demand (particularly from low-cost carriers and multi-carrier alliances); weather conditions; government legislation and regulation; impact of the continued military activities in Iraq; other acts of war or terrorism; and other risks and uncertainties listed from time to time in the Company's reports to the SEC. There may be other factors not identified above of which the Company is not currently aware that may affect matters discussed in the forward-looking statements, and may also cause actual results to differ materially from those discussed. The Company assumes no obligation to update such estimates to reflect actual results, changes in assumptions or changes in other factors affecting such estimates other than as required by law. Similarly, these and other factors, including the terms of the plan of reorganization as consummated, can affect the value of the Company's various liabilities, common stock and/or other equity securities. Accordingly, the Company urges that the appropriate caution be exercised with respect to existing and future investments in any of these liabilities and/or securities.

ADDITIONAL INFORMATION AND WHERE TO FIND IT
In connection with the proposed merger transaction, US Airways Group has filed a Registration Statement on Form S-4 (Registration No. 333-126162), which includes a proxy statement of America West Holdings, and other documents with the Securities and Exchange Commission. The proxy statement/prospectus was mailed to stockholders of America West Holdings after the registration statement was declared effective by the SEC on August 11, 2005. WE URGE INVESTORS TO READ THE REGISTRATION STATEMENT AND PROXY STATEMENT/PROSPECTUS AND OTHER RELATED MATERIALS CAREFULLY BECAUSE THEY CONTAIN IMPORTANT INFORMATION ABOUT THE PROPOSED TRANSACTION. Investors may obtain free copies of the registration statement and proxy statement/prospectus as well as other filed documents containing information about US Airways Group and America West Holdings at http://www.sec.gov, the SEC's Web site. Free copies of America West Holdings' SEC filings are also available on America West Holdings' Web site at http://www.shareholder.com/americawest/edgar.cfm, or by request to Investor Relations, America West Holdings Corporation, 111 West Rio Salado Pkwy, Tempe, Arizona 85281. Free copies of US Airways Group's SEC filings are also available on US Airways Group's Web site at http://investor.usairways.com/edgar.cfm or by request to Investor Relations, US Airways Group, Inc., 2345 Crystal Drive, Arlington, VA 22227.This communication shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

PARTICIPANTS IN THE SOLICITATION
America West Holdings, US Airways Group and their respective executive officers and directors may be deemed, under SEC rules, to be participants in the solicitation of proxies from America West Holdings' stockholders with respect to the proposed transaction. Information regarding the officers and directors of America West Holdings is included in its definitive proxy statement for its 2005 Annual Meeting filed with the SEC on April 15, 2005. Information regarding the officers and directors of US Airways Group is included in its 2004 Annual Report filed with the SEC on Form 10-K on March 1, 2005. More detailed information regarding the identity of potential participants, and their interests in the solicitation, is set forth in the registration statement and proxy statement and other materials filed with the SEC in connection with the proposed transaction.