Israel has a cessation of hostilities with Lebanon - only - not a peace deal. Jordon and Egypt do not have these flights going into their airspace. They havea peace agreement with Israel. Syria has not been in a position to attack Israel since losing the Golan high point. Assad knows better than to pick that fight again. But Lebanon since Hezbollah became a military factor is not trustworthy and the IDF will do whatever is necessary to know the movement of anything that could harm Israel. Sign a peace deal with Israel and sleep at night.
Syrian rebels call for regional alliance against Russia and Iran (Reuters)
from the article: Report: Israeli warplanes flying over south and east Lebanon