CLEVELAND, Ohio -- Frontier Airlines is ending service out of Cleveland to New York and Washington less than three months after launching the nonstops, saying the flights performed below expectations.

It also will stop flying to Trenton, N.J., the first nonstop out of Cleveland Hopkins International Airport it added, in February, on the heels of United Airlines' announcement it would pull its hub out of Cleveland.

Frontier is temporarily suspending seasonal service out of Hopkins to Phoenix and Raleigh-Durham, N.C.; and has already dropped seasonal flights to Seattle. Frontier brings back those three destinations for Cleveland flyers later in the winter or in the spring.