MIAMI —Frontier Airlines is adding nonstop service between Houston’s George Bush Intercontinental Airport and San Francisco, with daily nonstop service beginning November 20, 2014. Frontier’s new service will be operated using an Airbus A319, seating 138 passengers in a single class configuration, and will be launched on the same day as a new daily nonstop flight to Phoenix. Flight schedules for Frontier’s third destination at Houston Bush are as follow:

F9 1057 ~~ IAH – SFO ~~ D: 0600 A: 0820 ~~ Daily
F9 1056 ~~ SFO – IAH ~~ D: 0600 A: 1145 ~~ Daily

Frontier currently serves Houston with two flights per day from Denver, and will offer 28 flights per week from Houston Bush beginning November 20th. It will face direct competition from United Airlines, who has a hub at Houston Bush, with 79 weekly flights to San Francisco. United will also provide indirect competition to San Jose with 17 flights per week, as will Southwest Airlines, who operates 21 flights per week from nearby Houston Hobby to Oakland.

Frontier’s new flight is a shot across the bow of fellow ultra-low cost carrier (ULCC) Spirit Airlines, who has a focus city at Houston Bush with nonstop service to 12 domestic destinations. Spirit currently serves the San Francisco metropolitan area through Oakland, but San Francisco is certainly on its radar. And Frontier’s new service in Houston shines the spotlight on growing overlap amongst ULCCs in major US markets.