OMA Reports August 2009 Traffic

• Press Release
• Source: Grupo Aeroportuario del Centro Norte S.A.B. de C.V.
• On 9:00 am EDT, Monday September 7, 2009

MONTERREY, Mexico, Sept. 7, 2009 (GLOBE NEWSWIRE) -- Mexican airport operator Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA (Nasdaq:OMAB - News) (BMV:OMA), reports that terminal passenger traffic at its 13 airports decreased 12.9% in August 2009, as compared to August 2008. Domestic traffic decreased 11.0%, and international traffic decreased 24.1%.

Related Quotes

Symbol	Price	Change
OMAB	12.29	+0.13

{"s" : "omab","k" : "c10,l10,p20,t10","o" : "","j" : ""}

Total passenger traffic volumes during August decreased at a slower rate than during any prior month of the year. This effect is principally the result of the performance of domestic traffic.

                              Total Passengers*
 ---------------------------------------------------------------------
 (Thousand)    Aug        Aug    Change   Jan-Aug    Jan-Aug    Change
               -08        -09       %       2008       2009       %
 Domestic    1,006.5     896.0   (11.0)   8,226.3    6,641.1    (19.3)
 Inter-
  national     174.8     132.7   (24.1)   1,717.3    1,271.4    (26.0)
 ---------------------------------------------------------------------
 OMA
  Total      1,181.2   1,028.7   (12.9)   9,943.5    7,912.5    (20.4)
 ---------------------------------------------------------------------
 * Terminal  passengers:  includes passengers on the three types of
   aviation (commercial, charter, and general aviation), and excludes
   passengers in transit.

Domestic traffic. In general, the performance of VivaAerobus, Grupo Aeromexico, Aeromar, and Grupo Mexicana benefited domestic traffic. Three domestic routes were opened: Mexicana Link opened the Acapulco-Guadalajara and Guadalajara-Mazatlan-San Jose del Cabo routes on August 1, and Aeromexico Connect opened the Zacatecas-Mexico City route on August 11. The Culiacan, Durango, and Mazatlan airports reported traffic growth of 15.7%, 23.2%, and 2.6% respectively. However, the overall volume of domestic traffic was affected by the temporary suspension of operations of Aviacsa (suspended since July 6) and the departure from the markets of Alma, Aladia and Avolar. The Monterrey, Acapulco, and Ciudad Juarez airports had the largest traffic reductions.

International traffic. The principal factors in the reduction in international passengers were the cancellation of routes by Mexicana and Aeromexico; the suspension of Aviacsa; the departure of Delta from most of OMA's airports; and a reduction in frequencies by Continental. Monterrey and the tourist destination airports were the most affected.

The full traffic report is available at http://ir.oma.aero.

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.

About OMA

Grupo Aeroportuario del Centro Norte, S.A.B. de C.V., known as OMA, operates 13 international airports in nine states of central and northern Mexico. OMA's airports serve Monterrey, Mexico's third largest metropolitan area, the tourist destinations of Acapulco, Mazatlan, and Zihuatanejo, and nine other regional centers and border cities. OMA employs over 950 persons in order to offer passengers and clients, airport and commercial services in facilities that comply with all applicable international safety, security standards, and ISO 9001:2000. OMA's strategic shareholder members are ICA, Mexico's largest engineering, procurement, and construction company, and Aeroports de Paris Management, subsidiary of Aeroports de Paris, the second largest European airports operator. OMA is listed on the Mexican Stock Exchange (OMA) and on the NASDAQ Global Select Market (OMAB). Please visit our website, www.oma.aero.

OMA
Jose Luis Guerrero Cortes, CFO
+52.81.8625.4300 ext.308
vbravo@oma.aero
Zemi Communications
Daniel Wilson
+1.212.689.9560
dbmwilson@zemi.com