After a little more than a year of service, Allegiant Airlines will cease operations at Charles M. Schulz–Sonoma County Airport as of July 30 due to uneven passenger traffic.

“Their overall load factor is not where they would like it to be,” said Jon Stout, airport manager.

The carrier has been offering twice-weekly flights from the Santa Rosa airport to Las Vegas. While outbound Thursday flights to Las Vegas have been nearly full, outbound flights on Sundays have been about half full, Stout said.

The Las Vegas-based low-cost airline began operating twice weekly flights between Santa Rosa and Las Vegas and Mesa in May 2016.

The carrier ceased flights to Arizona on Jan. 2, after less than eight months of service due to lack of demand.

Stout said the airlines has mentioned possibly returning in February 2018 with seasonal flights.

According to the Allegiant’s website, the airlines is accepting reservations through Aug. 15, 2017. As of Monday morning, however, attempts to book a flight on the airlines website from Santa Rosa to Las Vegas in August were unsuccessful.

An Allegiant customer service representative, who was quoting airlines headquarters, said the “seasonal” flights will only be available until July 30. The airlines might resume flights again for the holidays, he said.

Stout said he was unaware of any possibility of holiday service.

Cynthia Sweeney covers health care, hospitality, residential real estate, education, employment and business insurance. Reach her at Cynthia.Sweeney@busjrnl.com or call 707-521-4259.