The U.S. Department of Transportation has issued a final order requiring Delta Air Lines and Aeroméxico to dissolve their joint venture by January 1, 2026, citing anticompetitive effects in U.S.–Mexico City flight markets. The decision revokes the venture’s antitrust immunity, which had allowed the two airlines to coordinate pricing, capacity, and scheduling.
Despite this, Delta will retain its 20% equity in Aeroméxico, and both carriers will maintain codeshare and frequent-flyer program benefits. DOT raised concerns about unfair slot allocations at Mexico City’s airport and other regulatory distortions that disadvantaged competitors. Delta expressed disappointment and warned of potential negative effects on connectivity and consumer choice, but said it would comply with the order while reviewing its response.
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