Fly non stop on AA to POP from JFK 12 noon arrive 3:46. Or you can book last minute and get an all inclusive and charter fare if you are going next week. Some last minute charters for an AI are cheaper than the fare on a scheduled airline if you can tolerate either charter airlines or AI's which I cannot but many of course can.
You can ask a travel agent on charters and of course try
www.expedia.com for air travel. Usually the best idea before just posting like this.
I'd think POP is pretty dead now in Feb. so the non AI's may offer deals in the $30 - 35 range per night.