Volaris, a low-cost carrier serving Mexico, and Frontier Airlines signed a codeshare agreement subject to approval by authorities in Mexico and the United States.

The agreement is one of the first between ultra-low-cost airlines, opening additional cheap fare options between Mexico and the United States. Volaris is expected to gain access to U.S. cities not currently reached by the airline and Frontier will have first-time access to Mexican destinations.

“At Volaris we are thrilled to join Frontier as one of the first ultra-low-cost carriers to enter a codeshare agreement. We estimate that our partnership will add around 20 new destinations to our network and 80 new routes between both Mexico and the United States,” said Enrique Beltranena, CEO, Volaris.

“Our goal is to unite families and friends on both sides of the border, and this new agreement with our partners at Frontier will allow us to expand the travel options for our audience while keeping fares low.”

Volaris currently flies to 24 destinations in the United States and Mexico.

“This agreement will allow us to expand upon our mission to deliver low fares and enable more people to fly,” said Barry Biffle, president and CEO, Frontier.

“Many customers traveling between the United States and Mexico are forced to pay high fares to fly, and this agreement will provide lower fares to a vast majority of the United States and Mexico population. As the leading ultra-low-cost carrier in Mexico, Volaris is an ideal partner with which to align and we look forward to working together to deliver low fares to millions of people.”