House Or Rental
AIRBNB is a great site for finding private room or full house accommodations!
Flight
JFK Airport is closest to the wedding venue! It is best to fly into JFK rather than LaGuardia. Jetblue often has really good deals into JFK.
Train
If traveling from Manhattan (34th street Penn Station) to Jamaica, Queens, it is best to take the Long Island Railroad to either Jamaica Station or Locust Manor station depending on where you are staying. Check google maps for exact directions depending on where you are coming from.