DL has applied for authority to fly from JFK to CZM (Cozumel), SJD ( San Jose Cabo), ACA (Acapulco), and PVR(Puerta Vallerta)...it would only be on Sat (probably utilizing idle a/c) with 737-800's...here's the short cut
http://dmses.dot.gov/docimages/pdf93/343167_web.pdf
