A "sherut" (shared taxi service) by the Amal Taxi Co. provides transport from Ben Gurion Airport direct to your hotel in Haifa. The cost is about $12.00, including service charges and the service is available at all times. However, it can cost more if there are not enough passsengers.
Transportation from Haifa to the airport on your departure can be arranged for about $12.00. There is also a good bus service.