Train
Figuring out the New York subway system is practically a right of passage. Grab a metrocard and explore!
Travel Note
When in doubt take a taxi from the airport! It's worth it we promise. Alternatively you can take a bus to LaGuardia Airport or travel to Kennedy Airport (JFK) via the subway and AirTrain. To get to Newark Airport, take the subway or a bus to Penn Station and use NJ Transit to the Newark Airport station, and then AirTrain to the airport.