JetBlue is the main airline offering low fares for JFK-LAS at $235 round trip for flight departures from early January into mid-July 2016. The deal here is most airlines have competitive fares, especially through the winter months. American, Delta, JetBlue and Virgin America fly nonstop flights at $235 round trip between New York JFK and Las Vegas, United flies nonstop between EWR and Las Vegas. American and Virgin America have one stop flights from $186 to $252 to New York LGA.
American $246 Tuesday and Wednesday with some Monday, Thursday and Saturday dates January and February. Low fare dates into July 2016.
American Airlines Las Vegas – New York LaGuardia LGA
$251.20 July 19 – July 26
Virgin America $186 round trip lowest fares (Jan-Feb 2016)
New York LGA – Dallas DFW – Las Vegas LAS
$185.20 February 2 – February 9
$235 New York – Las Vegas Nonstop Fares
Saturday January 16 – Tuesday January 19