The Department of Transportation is ending the joint venture between Delta and Aeromexico, which will likely impact ticket prices between the U.S. and Mexico. The Department of Transportation (DOT) has ruled that Delta Air Lines and Aeromexico will not be permitted to continue their joint venture after January 2026. In the joint venture, a passenger traveling between Boise, Idaho, and Mexico City could fly Delta to a hub, then board an Aeromexico flight to Mexico City. Delta competitor American Airlines currently serves the most cities in Mexico of any U.S. carrier. More than 40 million Americans visited Mexico last year, making it the top destination for U.S.-originating international travelers.