US Airways Express is adding another flight to its existing Charleston-New York City route.

The feeder carrier for Tempe, Ariz.-based US Airways said the new nonstop round-trip service will commence between Charleston International Airport and LaGuardia Airport on Oct. 31.

That will increase to three the number of daily flights the airline offers between the two cities at peak travel times.

In all, US Airways Express said today it is adding or expanding service from LaGuardia to seven East Coast markets, including Columbia and the Greenville-Spartanburg area.

US Airways currently operates 19 daily flights from Charleston International to Charlotte, Philadelphia, New York and Washington, D.C.