Sukhoi Su-27/Su-30/Su-33/Su-35/Su-37 Flanker

Belarus
- - Military
China (CPR)
- - Military
Federal Democratic Republic of Ethiopia (1995 - ...)
- - Military
  - - Ethiopian Air Force (ETAF)
    - - 1st Mixed Regiment
      - 1st Fighter Squadron
    - - 5 Squadron
Malaysia
- - Military
North Vietnam
- - Military
People's Democratic Republic of Algeria (1962-....)
- - Military
  - - Algerian Air Force (QJJ)
    - - 12e Escadre de Defense Aerienne (12 EDA)
Republic of Angola
- - Military
  - - Força Aérea Popular de Angola/Defesa Aérea e Antiaérea (FAPA/DAA 1975-2007)
  - - National Air Force of Angola (FANA 2007-...)
Republic of India
- - Military
Republic of Indonesia (1950-....)
- - Military
Republic of Kazakhstan
- - Military
Republic of Uganda
- - Military
  - - Uganda People's Defence Force
    - - UPDF Air Wing
Republic of Uzbekistan
- - Military
State of Eritrea
- - Military
Syria
- - Military
Ukraine (1991-....)
- - Military
  - - Ukrainian Air Force
    - - Air Command Centre
      - 831st Tactical Aviation Brigade
USSR/Russia
- - Military
Venezuela
- - Military