(WPXI) – American Airlines announced it’s reducing its flight schedule this holiday season by cutting almost a third of its outgoing flights this November out of Pittsburgh. The cuts affect more than 300 flights, including the flights from here to Philadelphia and the New York city routes to JFK and La Guardia. The direct flight to Phoenix is also impacted. As a result, experts are urging people to book their holiday trips sooner rather than later. American Airlines CEO Robert Isom said the company is taking proactive steps to build an additional buffer into the schedule for the remainder of the year.