The Trump administration ordered Delta Air Lines and Aeromexico to end their joint venture by Jan. 1, citing unfair advantages and harm to consumers. Both airlines expressed disappointment and are reviewing the order. Aeromexico stated flights and frequent flyer programs will continue. The Biden administration had considered withdrawing antitrust immunity for the joint venture, sparking a dispute with Mexico. Despite the order, Delta’s 20% equity stake in Aeromexico remains unchanged.

Read more at CNBC: Trump administration orders Delta, Aeromexico to unwind joint venture by Jan. 1