I am flying into/out of LAX on LY (El Al) from YYZ . I am flying LY105 YYZ-LAX and LY106 LAX-YYZ. The 105 actually goes TLV-YYZ-LAX and then LAX-YYZ-TLV. Since LY has the rights to take pax from LAX to YYZ and from YYZ to LAX will I need to clear international customs in LAX? There will be a mix of pax on the flight with some coming from TLV and some who have gotten on in YYZ (like myself). Also upon departure will be have to clear emigration/immigration @ LAX's TBIT? If I do not bring my passport will they let us pass customs with the normal documents for Canada->USA immigration (photo ID, government ID) since our boarding passes will say YYZ-LAX.

Hope you understand what I am asking, Thanks