Europe-Israel:
40Kgs - On all segments for which First Class (F) fare has been paid.
30Kgs - On all segments for which Business Class (C) fare has been paid.
20Kgs - On all segments for which Economy Class (Y) fare has been paid.
50Kgs -All immigrants to Israel on El Al flights regardless of class of travel, except for infants below two years of age.
http://www.elal.co.il/default.asp?V_DOC_ID=613