How long was king david in exile from saul?

King David was in exile from Saul for approximately seven years. After Saul became increasingly jealous of David's popularity and success, David fled to escape Saul's attempts on his life. This period of exile included time spent in various locations, such as the wilderness of Judah and the city of Ziklag, until Saul's death, which ultimately allowed David to ascend to the throne.