CHICAGO, October 28, 2003 - United Airlinesý (OTCBB: UALAQ.OB) senior-most executives negotiated extensively and in good faith with Atlantic Coast Airlines (ACA) to try to reach a competitive United Express agreement similar to those we reached with other carriers.ý We presented multiple enhanced offers to ACA and remained in discussions until October 16, a day prior to ACA's board meeting.ý However, ACA's management made clear that ACA -- not United -- would not negotiate further.

United Airlines reaffirms categorically that it did not participate in Mesa Air Group's offer to acquire ACA, and to suggest otherwise is baseless and irresponsible.ýý In fact, United expressly declined Mesa's invitation to participate in its offer.

Because ACA insists on pursuing its new strategy, it is only prudent now for United to examine all of its alternatives,

including beginning discussions with Mesa regarding United Express service in the event Mesa acquires ACA.

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