Many participants want to stay in Israel after their Taglit-Birthright Israel trip ends to relax by the beach, volunteer or continue exploring. The best way to do so is to extend your ticket prior to departure through Gil Travel (Taglit-Birthright Israel's travel agency). We highly recommend that you extend your stay prior to leaving the US since all seats are subject to availability and stipulations by the relevant airline. Although some airlines permit the extension to be made in Israel, flight availability can often be a problem on short notice and you don’t want to miss out on a wonderful opportunity to continue your experience in Israel.
You can only make your extension request through the Gil Travel website and must allow sufficient time for it to be processed prior to your departure date.
The link for extension reservations is: http://www.giltravel.com/extensionsinfo.htm