Nice sale with American Airlines from the New York region to San Salvador, El Salvador via Miami or Dallas.
What to do in San Salvador?
If you decide to use this ticket and have a long connection in San Salvador, the Joya de Cerén archaeological site which is sometimes called the Pompeii of the Americas is a short taxi ride from the airport. 4 hour tours from the airport can be arranged for under 100 USD depending on your level of Spanish. Joya de Ceren was named a UNESCO World Heritage Site in 1993.
American Airlines Airbus 321/319 Business Class