OMA reports June 2010 Traffic

Monterrey, Mexico, July 9, 2010—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 increased 1.4% in June 2010, as compared to June 2009. Domestic traffic increased 0.3%, and international traffic increased 8.8%.

Of total traffic, 96.7% was commercial aviation, and 3.3% was general aviation.

Domestic traffic increased at seven airports. Growth at the Zacatecas, Chihuahua, Tampico, and Mazatlán airports was noteworthy. In Zacatecas, growth occurred principally on the routes to Tijuana and Mexico City. Chihuahua benefitted from growth on the Guadalajara route. In Tampico, there was growth on the route to Monterrey and in general aviation. Mazatlán traffic grew principally on the routes to La Paz and Guadalajara. Traffic at the other six group airports decreased.

During the month of June, VivaAerobus opened the Monterrey-Tampico route and routes from Acapulco and Mazatlán to Guadalajara. Mexicana Link opened the Durango-Mexico City route.

International traffic increased at eight airports, with Monterrey, Zacatecas, Mazatlán, and Zihuatanejo showing noteworthy increases. Monterrey benefitted from an increase in traffic on routes to New York, Las Vegas, and Atlanta. Aeromexico Connect also opened the Monterrey-Miami route. Zacatecas increased traffic on the route to Los Angeles. Mazatlán and Zihuatanejo increased traffic on the routes to Phoenix. International traffic decreased most in the airports of Torreón and Durango.

The total number of flight operations (takeoffs and landings) in the month increased 16.5% as compared to the prior year period. Domestic flights rose 15.5%, and international flights rose 25.2%.

This press release June 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 June 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 forwardlooking 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.