It was part of the 279th Fighter Aviation Division from May 1943 onwards. In June, the regiment's commander became Captain Nikolay Mikhailovich Gusarov. During the summer, the regiment fought in the Battle of Kursk, Operation Kutuzov and the Chernigov-Pripyat Offensive. In September, Major Denis Pelipets became the regimental commander. In December, the regiment was sent to the rear for resupply. In May 1944, the regiment was relocated to Oryol. From June to August, it fought in Operation Bagration, the Bobruysk Offensive, the Minsk Offensive and the Lublin–Brest Offensive. During Operation Bagration, Major Pelipets was killed in action on 5 July and the regimental commander became Major Dmitry Alexandrovich Medvedev. In August, the 279th IAD was transferred to the 5th Air Army and the regiment fought in the Second Jassy–Kishinev Offensive, the Belgrade Offensive, the Battle of Debrecen and the Budapest Offensive. It was withdrawn from combat in December and equipped with the Lavochkin La-7.