There are three major airports that feed New York: John F. Kennedy Airport (JFK), La Guardia Airport (LGA), and Newark Airport (NWK). Kennedy and Newark are the major international hubs.
The Hotel Pennsylvania is on the west side of Manhattan, on 7th Avenue and 31st Street, just across 7th Avenue from Pennsylvania Station, which is one of the major railroad terminals in New York City.
Coming into Manhattan from an Airport
The two easiest ways to get into Manhattan are by taxi or airport bus. When you arrive, follow signs directing you to "Ground Transportation," or find an information desk or ask an airport employee in the arrival terminal where the taxi stand or bus station is.
Kennedy is east of Manhattan, about a 45-minute drive from the hotel, depending upon traffic. If you take a taxi, take a yellow taxi (yellow taxis are the official New York City taxis as opposed to the private cars that are hawked by a lot of individuals), for which the fixed rate to anywhere in Manhattan is $45 plus toll (from $0 to $5, depending upon your route through tunnel or bridge) plus tip ($5 is fine). The bus should be more or less $15.
La Guardia is also east, but much closer to Mahattan, a 25-minute drive from the hotel, depending upon traffic. Find a taxi (probably around $25 + toll + tip) or bus.
Newark is in New Jersey, west of Manhattan, and about an hour from the hotel, depending upon traffic. Taxis or limousines (several passengers) will be available) at prices similar to coming from Kennedy.
Bus Information from Local Airports
MacArthur Airport Islip
Traveling around Manhattan
Subway maps and Manhattan maps will be available at the hotel (or via the links below). As of this moment, we are planning the conference to take place at NYU (papers and panels) and at the Greenwich House Music School (concerts), both in the West Village a few minutes by subway from the Pennsylvania Hotel.
New York City Subway map
New Jersey Transit information
Long Island Railroad (LIRR) information