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US Department of Transportation Reverses Flight Constraints
In a move that could fundamentally alter the aviation corridor between North American neighbors, the United States announced on 16 October 2026 that it is easing restrictions on Mexican airline services operating out of Mexico City. This policy shift restores the ability of Mexican carriers to expand their service offerings from both Mexico City International Airport (MEX) and Felipe Ángeles International Airport (AIFA).
This decision effectively nullifies a restrictive order issued by the US Department of Transportation on 28 October 2025. That previous mandate had blocked several proposed and existing services by Mexican airlines and placed a freeze on the growth of scheduled passenger flights departing from MEX. Simultaneously, it had imposed strict limitations on operations at the newer AIFA hub. By removing these barriers, Washington is granting Mexican airlines the flexibility to once again scale their US-bound operations.
The conflict that led to the 2025 restrictions was rooted in a dispute over the 2015 bilateral air transport agreement. US officials had previously contended that airport policies within Mexico created an uneven playing field that disadvantaged American carriers. The restoration of these rights is not an automatic increase in flights but rather a regulatory opening. Airlines must still navigate slot availability, secure necessary permits, and ensure that new routes are commercially sustainable before they appear on passenger booking screens.
Market data suggests that Mexican carriers were already gaining ground despite these hurdles. According to analytics from OAG, the share of scheduled US-Mexico capacity held by Mexican-based airlines rose from 34% in the summer of 2024 to 40% by the summer of 2026. This organic growth indicates a strong demand for Mexican-operated services, which may now accelerate following the regulatory relief.
Aeroméxico Strategizes US Market Expansion
Aeroméxico is positioned to be the primary beneficiary and the first mover in response to the policy change. On 19 October, the airline's Chief Financial Officer, Ricardo Sánchez, confirmed that the company is actively reviewing its US expansion strategy. Sánchez noted that the carrier is revisiting several growth opportunities that had been sidelined due to the previous US restrictions.
The airline is now evaluating increased flight frequencies and new route possibilities from both MEX and AIFA. CEO Andrés Conesa provided a more aggressive timeline on 20 October, indicating that the airline could announce an initial wave of new US destinations as early as the following week. While specific cities have not been disclosed pending the finalization of airport slots and permits, Conesa suggested a phased rollout. The first group of routes is expected to launch in early 2027, with a subsequent expansion planned for mid-2027.
From a logistical standpoint, Aeroméxico is well-equipped for this growth. Sánchez highlighted that the airline possesses available aircraft capacity, largely due to favorable lease terms secured during its Chapter 11 restructuring process. By deploying these underutilized assets, the airline can increase its footprint in the US without the immediate need for massive capital expenditure on new fleet acquisitions.
One specific destination already under serious consideration is San Juan, Puerto Rico. Conesa indicated that service to the island is likely to return, though he projected the second half of 2027 as the most probable window for relaunch. This timing is strategically aligned with the peak cruise season, which drives significant passenger volume to the Caribbean gateway.
Divergent Capacity Trends Across Mexican Hubs
While the regulatory focus is centered on the capital, broader data reveals that the US-Mexico aviation market is experiencing highly uneven growth. Analysis of Summer 2026 scheduled capacity shows a stark contrast in how different Mexican gateways are performing.
| Mexican destination | Airport code | Summer 2026 scheduled US-origin seats | Year-on-year change |
|---|---|---|---|
| Mexico City | MEX | 3,143,267 | +2.3% |
| Cancún | CUN | 3,133,848 | −15.5% |
| Guadalajara | GDL | 1,988,415 | +7.4% |
| Monterrey | MTY | 775,273 | −7.7% |
Mexico City remains the central figure in this policy shift. With its dual-airport system (MEX and AIFA), the city offers diverse operational advantages. However, because it is already a high-capacity market, the impact of the US decision may manifest as optimized schedules and improved connection times rather than a sudden surge of entirely new city pairs.
In contrast, Guadalajara is emerging as a high-growth alternative. With a 7.4% annual increase in US-origin seats, it is outperforming Mexico City's 2.3% growth rate. While the October regulatory change specifically targeted the capital, the strength of the Guadalajara market suggests a broader appetite for increased connectivity across the region.
Monterrey presents a more challenging scenario. The city saw a 7.7% decline in capacity, leaving it with the lowest seat count among the four major hubs at 775,273. Despite being a critical corporate and industrial center, any recovery in Monterrey will depend on airline economics and specific passenger demand rather than the regulatory easing seen in Mexico City.
The most dramatic shift is occurring in Cancún. Despite remaining one of the largest gateways with 3,133,848 seats, it suffered a massive 15.5% contraction compared to the previous summer. This represents a loss of approximately 576,500 seats, signaling a significant retreat in US-origin capacity to the tourist hub.
Why This Matters: The Impact on the Traveler
For the average traveler, this regulatory shift is more than just a diplomatic victory; it is a potential catalyst for lower fares and more convenient travel. When the US Department of Transportation restricts a carrier's ability to add flights, it effectively creates a ceiling on supply. By removing that ceiling, the US is inviting increased competition.
From a practical standpoint, the "Information Gain" here is the distinction between regulatory permission and commercial reality. Just because Aeroméxico is allowed to fly more frequently to a US city does not mean tickets will instantly drop. However, the introduction of more frequencies usually leads to better departure times, reducing the need for long layovers and making transborder business travel more efficient.
Furthermore, the focus on AIFA (Felipe Ángeles International Airport) is a critical detail for passengers. AIFA is often less congested than the primary MEX airport. If Mexican carriers shift more US-bound capacity to AIFA, travelers may experience shorter security lines and a more streamlined boarding process, provided the airport's ground transportation remains accessible.
Ultimately, the contrast between the growth in Guadalajara and the collapse in Cancún capacity suggests that the "vacation" route is volatile, while "industrial/business" routes are stabilizing. Travelers should expect more stability and potentially more options for city-to-city business travel between the US and Mexico City, while remaining cautious about fluctuating availability in leisure destinations.
