A new agreement with Mexico was just signed - last week or week before - that allows adding a third carrier.
Jim
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Aviation Week & Space Technology
10/03/2005, page 15
Edited by Frances Fiorino
Printed headline: U.S.-Mexico Deal
A relaxation of restrictions on travel between the U.S. and Mexico will moot some of the most common competitions among U.S. airlines for service authority. In the first rule change since 1999, three carriers from each country, instead of two, will be permitted to fly between any U.S. point and 14 cities in Mexico, including all the major resort destinations. These markets have grown in recent years, and U.S. low-cost carriers have competed in Transportation Dept. selection proceedings with network airlines to serve them. Often, three U.S. airlines have competed for two designations, or two have competed for a single designation in a market already served by one carrier. In another change, airlines from both countries may include their U.S.-Mexico service in code-share agreements with carriers from third countries. The Mexican points with expanded service are Acapulco, Cancun, Cozumel, Guadalajara, Huatulco, Ixtapa/Zihuatanejo, Loreto, Manzanillo, Mazatlan, Merida, Monterrey, Oaxaca, Puerto Vallarta and San Jose del Cabo.