United Airlines is adding 35 flights, six routes ,12 new gates and three clubs to its Denver International Airport operations.

The new routes include  Dayton, Greensboro, Lexington and San Juan, Puerto Rico, four destinations that are not served out of Denver by other airlines

“Starting this summer, United also will double the total number of early morning departures and late evening arrivals in and out of Denver, giving customers more flexibility and more options to stay away longer,” the carrier announced on May 23, ahead of chief executive Sccott Kirby meeting customers, elected officials and local partners for a tour of the “soon-to-open club spaces” and a look inside a new Boeing 737 MAX 9 aircraft,.

“Denver is one of the fastest growing cities in the country and as the Mile High City’s most flown airline, it’s essential that we maintain the most modern infrastructure and fleet to support our local employees and customers and deliver a great experience,” said Kirby. “