Originally Posted by umguy
Actually they have had it for awhile. It used to be a direct with a stop in MAD first. I'm not sure if it's still that way.
You are correct. DL has served BCN nonstop seasonally from JFK since
at least 1999. It has sometimes been replaced by JFK-MAD-BCN-MAD-JFK in the winter. They've also seasonally served BCN from ATL in recent years.