Just to let everyone know that some airlines are not shown when you search for flights on Google, Matrix etc.... As an example that I have seen, Condor which has direct flights to BWI Baltimore from Germany ( and is a viable option for those living in Baltimore to go from BWI to TLV via Germany with one stopover) is not shown and am I sure there are a bunch of airlines that you actually have to go onto their website to check for flights. Maybe we can start a list here of "hidden" airlines.
As an unconfirmed example when dealing with the regional airlines is Southwest.