Interjet, Mexico’s third-biggest carrier, is in talks to sell an equity stake to American Airlines Group Inc. or United Continental Holdings Inc., said Chairman Miguel Aleman Velasco.

Aleman Velasco declined to say how large a stake is for sale or what price it might fetch. No agreement has been finalized, he told reporters Thursday in Mexico City.

A sale would raise money for Interjet as it looks to keep up with the growth of rival discount carrier Volaris, the second-largest Mexican airline by passengers. Delta Air Lines Inc. is seeking to increase its stake in Grupo Aeromexico SAB, the nation’s biggest carrier, to as much as 49 percent and to create a joint-venture partnership. That would allow the carriers to collaborate on fares and routes without violating antitrust rules.

Representatives of American and United weren’t immediately available for comment.

Interjet plans to increase its fleet to 90 aircraft by 2018, Aleman said. The carrier flies Airbus Group SE A320 single-aisle jets and the Russian-made Superjet 100 regional plane.

–With assistance from Mary Schlangenstein and Michael Sasso

©2016 Bloomberg L.P.

This article was written by Eric Martin from Bloomberg and was legally licensed through the NewsCred publisher network.

Photo Credit: Interjet is among the only airlines in the world flying the Russian-made Sukhoi Superjet 100. Both American and United are considering investing in Interjet, according to Interjet's chairman. Bernal Saborio / Flickr