This fare is available for flights departing September 17 through the end of the schedule in March 2019. Flights are available daily although on some days return flights require a long layover in Madrid. There is a 7-day minimum stay requirement and some blackout dates around the Christmas and New Years Holidays. This fare books into the Main Cabin Economy fare bucket, meaning you are allowed one free piece of checked baggage along with your standard carry-on allowance.
Searching on Iberia, I was able to find seats departing JFK on Friday, September 21, and returning from TFS on Sunday, September 30, 2018. There is a wide range of dates available for Late Summer, Fall, and Winter travel early into next year.
Also need a sunny hotel by the beach in Tenerife? We've got you covered with all these options from Hotelwatchdog for the dates mentioned above.