BizJet - the Hilton is about 2 miles from where the blast was.
The blast was near the "Dan Panorama" hotel which is very popular with airline crews.

This is not the 1st time Air France cancelles the flights to TLV while all the rest are continuing without any problem. I guess that Delta joins the act as a "Sky Team solidarity".
I can't see any reason for them to do such an act while CO, ElAl, BA, LH, SR and many more keep their flights as scheduled.