about airtran

                                                                May 18, 2007

Dear Fellow Midwest Shareholder:

We were disappointed, but not surprised, when Midwest rejected AirTran’s substantially enhanced offer of $15.00 per share, made on April 2, 2007. Our offer represents a 65 percent premium to the $8.13 price that Midwest stock was trading at on December 12, 2006, the day before AirTran publicly disclosed its initial October 20, 2006, offer. Midwest’s rejection marks the third time that it has declined an AirTran offer, and once again, this decision affecting your pocketbook has been made without even bothering to meet with us to discuss the merits of the proposed AirTran and Midwest combination and the value such a combination would bring to the Midwest stakeholders.

We at AirTran do not believe Midwest’s management is serving the best interests of its constituents and, most importantly, you — the shareholders and owners of the Company. We believe that current management is entrenched and currently has no intention of recommending a combination with AirTran—despite the clear benefits that a merger will provide to Midwest’s shareholders, employees, customers, and the communities it serves. Therefore, AirTran seeks your support to elect at the June 14th Annual Meeting of Midwest Shareholders three new nominees as board members whom we believe will better represent your interests in accordance with their duties under law.

We urge you to send Midwest’s management a message they cannot ignore—please vote to elect the three AirTran nominees on the enclosed BLUE proxy card TODAY —by telephone, by Internet or by signing, dating and returning the enclosed BLUE card in the postage-paid envelope provided.

Unfortunately, the current Midwest Board has demonstrated a lack of independence to date from management by continuing to reject AirTran’s offer despite compelling evidence that, by any measure—financial, network revenue and diversity, opportunities for employees, fleet plan, cost structure, growth for the greater Milwaukee region, and most significantly, the shareholder value creation model we have put forth—the proposed combination of the two airlines would generate significant value. Instead, the Midwest Board has, at least to date, “rubber stamped” management’s “stay the course, go it alone” plan. If you look at Midwest’s management’s record of substantial losses over the past five years, we believe you should ask yourself why anyone should trust this management team to deliver on yet another new plan. The best evidence of why not to have that trust resides in the results that Midwest reported for the 1st Quarter of this year – excluding special items, it lost more this year than it did during the 1st Quarter of last year and this is with its much touted new business plan.

In contrast to that flawed plan, AirTran’s proposed combination provides increased value to shareholders, additional jobs and more opportunities for advancement for current employees, and an increase in daily departures and destinations for the communities served by Midwest.

We also feel you should know, even as Midwest’s management believes you should not benefit from the significant premium and long-term value provided by AirTran’s offer, they have also taken actions that appear to fly in the face of good corporate governance. These actions include the following:

•   •  Promoting a “stay-the-course” plan that obfuscates the many uncertainties Midwest faces vis-à-vis the future competitive environment and will continue its track record of missing its own growth targets. You should know that Midwest’s 2007 projected earnings per share are nearly double the estimates of most Wall Street analysts.
•   •  Preventing AirTran from identifying additional value by refusing to have any discussions with us. It is hypocritical to claim that AirTran has undervalued Midwest while denying AirTran the basic “due diligence” that could lead to a higher offer.
•   •  Failing to tell shareholders, until required to do so by SEC disclosure regulations, that in December, in the midst of AirTran’s offer, the Board voted to increase each director’s annual retainer fee by 60% and increase by 100% the fee each director will receive for attending meetings (and providing a $500 fee for every telephonic meeting directors attend).
•   •  Committing to pay Goldman Sachs, its financial advisor, a premium if Midwest remains independent. This approach hardly suggests that Goldman could conduct an unbiased review of AirTran’s proposal or develop any value creation scenario.
•   •  Failing to tell shareholders, until required to do so by SEC disclosure regulations, that it paid $100,000 for, and based its recommendation to shareholders upon, the advice of an “independent” aviation consulting firm whose chairman has been a Midwest director for over 20 years. That consulting firm was requested to provide its advice to the very same Board committee that is headed by the consulting firm’s own chairman..
•   •  Refusing to provide AirTran with a list of shareholders with the effect of preventing us from communicating with you directly about our offer.
•   •  Misleading the Midwest employees and the Milwaukee community by claiming that the AirTran plan will result in job losses and reduced service to Milwaukee when AirTran has described in detail how its plan will increase service and create many more jobs in the Milwaukee region than Midwest now

We believe that you have the right to make your voice heard in the Midwest boardroom and take actions that YOU determine are best for you. You will be able to act in YOUR own interest by voting to elect the three AirTran nominees to the Midwest Board at the Annual Meeting on June 14, 2007.

We believe our three nominees—Jeff Erickson, Charles Kalmbach and John Albertine—will help restore high standards and strong corporate governance at your company. We also believe that the election of our nominees to Midwest’s Board will better ensure that shareholders’ best interests are being served. While this slate of director candidates, if elected, will not constitute a majority of the members of the Board, we believe it is vital that your interests be better represented inside of the Boardroom. It is time for a change.

We ask that you read carefully the attached Proxy Statement and then vote FOR AirTran’s nominees on the BLUE proxy card TODAY—by telephone, by Internet or by signing, dating and returning the enclosed BLUE card in the postage-paid envelope provided.

Thank you for your consideration.

Joe Leonard
Chairman and Chief Executive Officer