Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Savannah to Jacksonville, North Carolina as you normally would.
SAV and OAJ are unique codes to identify airports used in the aviation industry. They are defined by IATA (International Air Transport Association) and are commonly called IATA codes. SAV to OAJ refers to a flight route from Savannah/Hilton Head Airport to Jacksonville Albert J Ellis Airport.