Jan.23 -Feb 1st Toronto - Jerusalem $620 RT

if you want to book you must be ok with partying for two days in Amsterdam.

Book Wow Air from Toronto-Amsterdam Jan. 23 - Feb.1st (Note: you can book from the 18th of Jan and still get the deal with Wow) then go to Easy Jet book Amsterdam to Tel Aviv from Jan.25 - Jan.30.
You can also play around with the dates and extend your stay in Tel Aviv.