Sandy's impending arrival to New Jersey is causing commuter rails and  New York subways to close  Amtrak to alter its schedule and over 5000 airline flights to be cancelled.

Airlines canceled more than 5,000 flights mostly as a result of Hurricane Sandy, with hubs along the East Coast bearing the brunt of the disruptions.

According to the flight-tracking service FlightAware, 1,100 Sunday flights have been canceled as of Sunday afternoon, with more than 265 cancellations at Newark Airport, a hub of United Airlines.

For Monday, nearly 4,000 flights were canceled, with 857 cancellations at Newark, followed by 632 at New York's Kennedy Airport and more than 500 cancellations at both New York's LaGuardia and Philadelphia International.

FlightAware said it expects the number of flight cancellations for Monday and Tuesday to "rise considerably."

A spokesman for United Airlines parent United Continental Holdings Inc. said the carrier has suspended an unspecified number of flights to New York and Washington-area airports beginning Sunday evening with plans to resume Tuesday as conditions permit.

JetBlue Airways Corp., which flies out of JFK, said it has canceled more than 1,000 flights from Sunday through Wednesday morning.

Amtrak has cancelled Northeast Corridor service on Monday according to WPVI. NJ Transit, PATH and SEPTA trains are all shut down on Monday as well.

Spencer Platt/Getty Images

New York Gov. Andrew Cuomo has ordered New York City's transit service to suspend bus, subway, and commuter rail service in advance of the massive storm.

Cuomo says the system will be suspended starting at 7 p.m. Sunday.

The city's mass transit system is the nation's largest. The subway alone has a daily ridership of more than 5 million.

Most U.S. airlines -- including American, Delta, JetBlue, Spirit, United and US Airways -- has already issued flexible travel policies that allow fee-free changes for many passengers ticketed to fly to the Northeast and mid-Atlantic during the next few days according to USA Today.