ex-HPN you will likely have to do open jaw
For July, I found lots of options using ITA and destination as
ROM, PAR, LON, MUC, FRA, ATH, STO, WAW, HEL, NCE, VCE
Maybe I am missing something, but I cannot find exJFK or EWR for $1500, but no problem with HPN if you leave open option for open jaw in Europe.
into CDG and out of VCE seemed to have most dates available but if you use the cities above you'll find all available.
AC seems to drop down to $1490ish on some dates. wow!