http://www.israelnationalnews.com/News/News.aspx/273217El Al to allow travelers to change tickets for free for elections day - March 2nd
According to El Al, customers who bought tickets prior to December 12, 2019 (inclusive), can change their tickets without paying a fee until December 25, 2019.
Israelis who are leaving Israel between February 15, 2020 and March 2, 2020, can delay their flights by up to a month.
Israelis whose point of departure is abroad and who would leave Israel between February 27, 2020, and March 2, 2020, can delay their return flight by up to a week.