Cheaper flights from Ovda
Israeli Channels 12 and 13 (the spin-offs of former Channel 2) ran an item today about this. I don't know how accurate their analysis is (maybe this time it is less flawed than the usual), but they have found much cheaper flights than from Ben Gurion for the same destinations (40% to 88% cheaper) during off-season. This is apparently due to the government subsidizing the airport fees and even paying the operators a small bonus for every tourist landing there. I assume they are trying to ease the congestion at TLV.
It's a pain to get to the airport, but the difference in expenses for a family is substantial.