Low-cost air carrier Allegiant (ALGT +2.93%) has added 18 nonstop jet service routes to its network, the company announced today.

Included in the new routes are flights to and from 10 cities the airline did not previously serve, including New York City. The additions bring to 99 the number of U.S. communities served by Allegiant.

The airline caters to leisure travelers flying mostly from smaller cities, including Allentown, Pa., McAllen, Texas, and Bangor, Maine, to vacation destinations such as Phoenix, Orlando, Fla., and southwest Florida. Allegiant generally only flies twice a week to most cities and most of the new flights are to Florida. The new flights will begin this fall.

"We are proud to be the hometown airline of nearly 100 communities across the U.S.," said Allegiant President Andrew C. Levy in the company's statement. "We look forward to providing more travelers with great travel deals to more places as we grow our fleet and our network."

-- Material from The Associated Press was used in this report.