RAF Fighter Command Headquarters was located at RAF Bentley Priory, near Stanmore in North London. The Commanding Officer was Air Marshal Hugh C.T. Dowding.
| Group | Headquarters | Commanding Officer | Area of Operations |
|---|---|---|---|
| 10 Group | RAF Box, Box, Wiltshire | Air Vice-Marshal Sir C J Quintin Brand | South West England and South Wales |
| 11 Group | RAF Uxbridge, Hillingdon, Middlesex | Air Vice-Marshal Keith Park | South East England and London |
| 12 Group | RAF Watnall, Nottinghamshire | Air Vice-Marshal Trafford Leigh-Mallory | East Anglia, the Midlands, Mid Wales and North Wales |
| 13 Group | RAF Newcastle, Kenton Bar, Newcastle-upon-Tyne | Air Vice-Marshal Richard Saul | North of England and Scotland |
| Sector | Group | Sector Station | Satellite Airfield or airfields | ||
|---|---|---|---|---|---|
| A | 11 | Tangmere | Westhampnett | ||
| B | 11 | Kenley | Croydon | ||
| C | 11 | Biggin Hill | West Malling, Gravesend | ||
| D | 11 | Hornchurch | Gravesend, Rochford, Manston, Hawkinge | ||
| E | 11 | North Weald | Stapleford Tawney, Martlesham Heath | ||
| F | 11 | Debden | Martlesham Heath | ||
| G | 12 | Duxford | Fowlmere | ||
| K | 12 | Wittering | Coltishall | ||
| L | 12 | Digby | Tern Hill | ||
| M | 12 | Kirton-in-Lindsey | |||
| N | 12 | Church Fenton | Leconfield | ||
| O | 13 | Usworth | Catterick | ||
| P | 13 | Acklington | |||
| Q | 13 | Turnhouse | Drem, Grangemouth | ||
| R | 13 | Dyce | Grangemouth | ||
| S | 13 | Wick | Kirkwall, Sumburgh | ||
| W | 10 | Filton | Boscombe Down, Colerne, Pembry | ||
| Y | 10 | Middle Wallop | Boscombe Down, Warmwell, Exeter, some control over RNAS Roborough, RAF St Eval | ||
| Z | 11 | Northolt | Hendon |