In February 1918, the squadron began replacing its Nieuport 17s with Hanriot HD.1s. Hanriot supplies being insufficient, some Nieuport 27s were also brought on strength. The squadron served on through Summer 1918. Then, on 26 October 1918, it was included in the "Massa da Caccia" (Fighter Mass) that supported the victorious final Italian offensive at Vittorio Veneto. When the war in northern Italy ended on 3 November 1918, the "81a Squadriglia" had flown 4,118 combat sorties, engaged the enemy 230 times, and were credited with 34 aerial victories. The squadron suffered four dead. It still had 21 Hanriots and a Nieuport 27 in service.