
US Transportation Secretary Sean Duffy has reiterated his from European governments to honour open skies agreements, expressed during an aviation meeting in Montreal, targeting restrictions at Amsterdam, Lisbon, and Dublin airports.
The Trump administration enforces measures against Mexico for breaching the 2015 bilateral air transport pact, including schedule approvals for Mexican airlines’ US operations since July 2025.
On 16 September 2025, the US Department of Transportation ended antitrust immunity for the Delta Air Lines and Aeromexico joint venture, effective 1 January 2026, while allowing codesharing and Delta’s equity stake.
Mexico rescinded slots at Benito Juarez International Airport in 2022 and relocated US cargo carriers to Felipe Angeles International Airport in 2023, over 30 miles away, prompting US countermeasures.
Delta estimates the Mexico actions could impact €700m in annual economic activity between the US and Mexico, as part of broader efforts to protect US carriers’ market access.
Sean Duffy shared “such measures contradict commitments under the agreements, which facilitate commerce, trade, and passenger movement. The administration will not tolerate practices that disadvantage US carriers or raise costs for businesses. Washington stands ready to apply measures if necessary.”