Bang's sixth and last patrol began on 25 March when she got underway for Luzon Strait. After 10 days of patrol, she was ordered to take lifeguard station northeast of Formosa during strikes on northern Formosa and the southern Ryukyu Islands in support of the Allied struggle for Okinawa. On 21 April, Bang rescued a Navy pilot who had ditched his plane after it had been damaged by flak during a strafing run.