We have room blocks at two hotels within walking distance to the venue below. However, the venue is very easy to get to by uber/taxi or the subway (it's right off the 123 line) should you prefer to stay elsewhere in Manhattan! Ubers/taxis are readily available at all hours.
The Empire Hotel overlooks Lincoln Center and is a 6 minute walk to the venue.
The Fairfield Inn and Suites is an 11 minute walk to the venue.
For guests flying to NYC for the wedding, Ubers and taxis are readily available from all airports. Additionally, trains into central Manhattan are available from Newark and JFK.
JFK
UberX fare: ~$85, depending on traffic and demand
Taxi flat fee: $75
Train: $13.50 per person
More details here
Newark
UberX fare: ~$80, depending on traffic and demand
Taxi fare: ~$70, depending on traffic
Train: $17 per person
More details here
LaGuardia
UberX fare: ~$40, depending on traffic and demand
Taxi fare: ~$40, depending on traffic
More details here