Regular RAF squadrons (Nos. 1–299)
Article XV squadrons of World War II (Nos. 400–490)
Regular RAF squadrons (Nos. 510–598)
Advanced Training Squadrons (550–565)
Royal Auxiliary Air Force Squadrons (600–616)
Regular RAF squadrons (Nos. 617–650)
Air Observation Post squadrons
Regular RAF squadrons (Nos. 667–695)
Fleet Air Arm squadrons
Royal Flying Corps/Royal Air ForceOther Squadrons
- 1.1 Numbers 1–50
- 1.2 Numbers 51–100
- 1.3 Numbers 101–150
- 1.4 Numbers 151–200
- 1.5 Numbers 201–250
- 1.6 Numbers 251–299
- 2.1 American Manned
- 2.2 Polish Manned (300–309)
- 2.3 Czechoslovak Manned (310–313)
- 2.4 Polish Manned (315–318)
- 2.5 Dutch Manned (320–325)
- 2.6 French Manned (326–329)
- 2.7 Norwegian Manned (330–334)
- 2.8 Greek Manned (335–339)
- 2.9 French Manned (340–347)
- 2.10 Belgian Manned (349–350)
- 2.11 Yugoslav Manned (351–352)
Article XV squadrons of World War II (Nos. 400–490)
- 4.1 Royal Canadian Air Force (400–443)
- 4.2 Royal Australian Air Force (450–467)
- 4.3 Royal New Zealand Air Force (485–490)
Regular RAF squadrons (Nos. 510–598)
Advanced Training Squadrons (550–565)
Royal Auxiliary Air Force Squadrons (600–616)
Regular RAF squadrons (Nos. 617–650)
Air Observation Post squadrons
Regular RAF squadrons (Nos. 667–695)
Fleet Air Arm squadrons
Royal Flying Corps/Royal Air ForceOther Squadrons