| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 11 | 145 | Croydon | Surrey | 10/10/39 | Reformed. Blenheim If, 10/39. Hurricane I, 03/40. |
| 11 | 145 | Filton | Avon | 09/05/40 | |
| 11 | 145 | Tangmere | Sussex | 10/05/40 | |
| 11 | 145 | Westhampnett | Sussex | 23/07/40 | |
| 13 | 145 | Drem | East Lothian | 14/08/40 | |
| 13 | 145 | Dyce | Aberdeenshire | 31/08/40 | |
| 11 | 145 | Tangmere | Sussex | 09/10/40 | Spitfire I, 01/41. Spitfire IIa, 02/41. |
| 11 | 145 | Merston | Sussex | 28/05/41 | Spitfire IIb, 05/41. |
| 13 | 145 | Catterick | Yorkshire | 28/07/41 | Spitfire Va, 11/41. Spitfire Vb, 11/41. To Helwan, 11/02/42. |