The Retreat is only a couple hours from New York City, and we have Wula Bus transportation available from New York City to and from the Retreat. If you are planning on renting a car or getting picked up somewhere, EWR airport in Newark, NJ is much closer and you can skip the whole NYC traffic, etc. Most folks flying in should fly into any New York City Airport and then take the Wula bus.
The airport closest to the Wula Bus in Harlem is LGA (LaGuardia). Other airports in the area are JFK International and EWR (Newark, NJ).
You can take public transportation (NYC Subway, Long Island Railroad, other trains) from ANY of these airports to the exact block where the Wula Bus stops in Harlem (149th + 7th Ave. or 2580 7th Ave New York, NY 10039).