The FAA said it has identified several instances of non-compliance with minimum international aviation safety standards set by the United Nations.

By Meena Thiruvengadam
May 28, 2021
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Aeromexico Boeing 787 Dreamliner Landing In New York JFK
Credit: Nicolas Economou/NurPhoto/Getty Images

It just got harder for Mexican airlines to launch new flights to the U.S.

The U.S. Federal Aviation Administration (FAA) has downgraded Mexico's flight safety rating to a Category 2 from a Category 1 — a change that will impact codesharing agreements and prohibit Mexican carriers from debuting new flights to the U.S.

Mexican carriers will be allowed to continue existing service to the U.S., but the FAA said that it "will increase its scrutiny of Mexican airline flights."

The FAA conducted a safety assessment of Mexico's civil aviation authority between October 2020 and February 2021 and found several violations of international flight safety standards set by the United Nations' International Civil Aviation Organization (ICAO). The agency regularly assesses aviation safety practices in countries whose carriers operate or apply to operate in the U.S. "The assessments determine whether international civil aviation authorities meet minimum ICAO safety standards, not FAA regulations," the FAA noted.

Delta president Glen Hauenstein said at a conference covered by Reuters that he was expecting the move to have limited impact on consumers. What it might do is restrict Aeromexico's ability to expand into the United States, he explained.

"So very little impact for our customers booking through Delta," he said, Reuters reported.

Delta does have a codeshare agreement with Aeromexico and will now have to remove its codes from the airline's flights. Codeshare agreements allow two or more airlines to market the same flight.

Even without the codeshare arrangement in place, however, Delta plans to allow travelers to continue accruing SkyMiles on Aeromexico flights, Reuters reported.

The U.S. previously downgraded Mexico's air safety rating in 2010, restoring it to a Category 1 about four months later.

Meena Thiruvengadam is a Travel + Leisure contributor who has visited 50 countries on six continents and 47 U.S. states. She loves historic plaques, wandering new streets and walking on beaches. Find her on Facebook and Instagram.