On a similar note, (but this one is not new from today, its old news) you can get one-way from NYC - TLV, after Pesach for as low as $315 on Cheapoair. Sample dates 3/15 (Wednesday b4 Rosh Chodesh) or 3/19 (1st day Rosh Chodesh).
Instructions: Search the exact date that you would like on kayak.com, select the link to cheapoair (will not work directly on cheapoair), price will be $330, use promo ny15 at checkout - price will drop an additional $15.