A staff uploads packages on a Delta Air Lines plane at John F. Kennedy International Airport in Queens, New York City, U.S., April 23, 2025. REUTERS/Jeenah Moon/File PhotoWASHINGTON—The Trump administration asked a U.S. appeals court on Monday to reject Delta Air Lines and Aeromexico’s bid to halt an order forcing them to unwind a venture that lets the carriers coordinate scheduling, pricing and capacity for U.S.–Mexico flights.The airlines are seeking to have waived a January 1 deadline to end their venture as ordered by the Department of Transportation, so that the court can have time to conduct a review and issue a full opinion. The order was issued in September, as part of several actions aimed at Mexican aviation.

