Take NJ Transit from Penn Station to Newark Liberty International Airport Station, then use the AirTrain to your terminal
Take the AirTrain Newark from Newark Liberty International Airport Station to your terminal
Take an NJ Transit train from Penn Station to Newark Penn Station, then transfer to a NJ Transit bus or taxi to the airport
Take an Amtrak train from Penn Station to Newark Liberty International Airport Station, then use the AirTrain to your terminal
Take a taxi or rideshare directly from Manhattan to Newark Airport
Take a private car or airport shuttle from Manhattan to Newark Airport
Take the PATH train to Newark Penn Station, then transfer to a taxi, rideshare, or bus to the airport
Take a bus from Manhattan to Newark Airport if available from your location and schedule