the schedule here fast ferry is on Monday, Wednesday, friday leave leave 7:20 arrive 9:00 stavanger there is the slow ferry mon.-friday too. if the flight is early in the morning (my flight was 6:00am) I slept at the airport over night at the lower level so i can catch the flight ( I had my camping equipment sleeping bag etc..) save me money for motel room
Some translations: Man = short for Monday Tir = short for Tuesday Ons = short for Wednesday Tor = short for Thursday Fre = short for Friday Lør = short for Saturday Søn = short for Sunday
Stavanger is easiest for connection to the airport, but I belive a bus correspond to the arrivals at Lauvik as well.