OMA reports October 2009 Traffic

Monterrey, Mexico, November 9, 2009—Mexican airport operator Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA (NASDAQ: OMAB; BMV: OMA), reports that terminal passenger traffic at its 13 airports decreased 12.4% in October 2009, as compared to October 2008. Domestic traffic decreased 11.6%, and international traffic decreased 17.0%.

Of total traffic, 97.5% was commercial aviation, and 2.5% was general aviation.

Domestic traffic grew at the Culiacán, Durango, and Mazatlán airports by 14.8%, 7.7%, and 7.0%, respectively. The performance of VivaAerobus, Aeromar, and Grupo Aeroméxico were noteworthy. VivaAerobus opened the Mazatlán-La Paz route on October 1 and Reynosa-Veracruz on October 2. Aeromar opened the Monterrey-San Luis Potosí route on October 5. These factors were offset by the suspension of Aviacsa (suspended since July 6, 2009), the departure from the markets of Alma and Aladia, and a reduction in traffic on Interjet and Magnicharter. The Monterrey, Acapulco, and Ciudad Juárez airports had the largest traffic reductions.

International traffic decreased principally because of the cancellation of international routes by Continental, Grupo Aeroméxico, and Alaska Airlines, in addition to the suspension of Aviacsa. The Monterrey, Mazatlán, Acapulco, and San Luis Potosí airports were the most affected. On the other hand, international traffic at Zacatecas increased 22.6% as a result of growth on traffic on the Chicago, Oakland, and Los Angeles routes.

The total number of flight operations (takeoffs and landings) in October 2009 decreased 8.6% as compared to October 2008.

This press release may contain forward-looking information and statements. Forward-looking statements are statements that are not historical facts. These statements are only predictions based on our current expectations and projections about future events. Forward-looking statements may be identified by the words “believe,” “expect,” “anticipate,” “target,” or similar expressions. While OMA's management believes that the expectations reflected in such forward-looking statements are reasonable, investors are cautioned that forward-looking information and statements are subject to various risks and uncertainties, many of which are difficult to predict and are generally beyond the control of OMA, that could cause actual results and developments to differ materially from those expressed in, or implied or projected by, the forward-looking information and statements. These risks and uncertainties include, but are not limited to, those discussed in our most recent annual report filed on Form 20-F under the caption “Risk Factors.” OMA undertakes no obligation to publicly update its forward-looking statements, whether as a result of new information, future events, or otherwise.