Sukhoi Su-27 Flanker

The Su-27 Flanker is a twin-engine, supermaneuverable Soviet-era air superiority fighter. Its enormous fuel capacity gives it an excellent range. Ukraine inherited Su-27s from the Soviet Union and has operated them throughout the war with Russia, complemented by F-16s received from 2024.

First flew 1977, entered Soviet service 1985. Ukraine inherited substantial numbers at independence. The Su-27UB two-seat variant is also operated. In 2024-2025, Ukraine began replacing worn airframes with F-16As donated by the Netherlands and Denmark.