Nice sale with Delta from New York-JFK to San Salvador, El Salvador. SkyMiles base members would earn 990 RDMs, 6226 MQMs and 198 MQDs.
Here is a Trip Report with Delta from New York to Dominican Republic on a Boeing 737.
What to do in San Salvador?
If you decide to use this ticket, 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.
Delta Business Class