| Group | Squadron | Base | County | Arrived | Comments |
|---|---|---|---|---|---|
| 13 | 141 | Turnhouse | Midlothian | 04/10/39 | Reformed. Gladiator I, 10/39. |
| 13 | 141 | Grangemouth | Stirlingshire | 19/10/39 | Blenheim If, 12/39. |
| 13 | 141 | Prestwick | Ayrshire | 13/02/40 | |
| 13 | 141 | Grangemouth | Stirlingshire | 22/02/40 | Defiant I, 03/40. |
| 13 | 141 | Turnhouse | Midlothian | 28/06/40 | |
| 11 | 141 | West Malling | Kent | 11/07/40 | |
| 13 | 141 | Prestwick | Ayrshire | 25/07/40 | |
| 13 | 141 | Dyce | Aberdeenshire | 22/08/40 | |
| 13 | 141 | Turnhouse | Midlothian | 30/08/40 | |
| 13 | 141 | Drem | East Lothian | 15/10/40 | |
| 11 | 141 | Gatwick | Surrey | 22/10/40 | |
| 11 | 141 | Gravesend | Kent | 03/11/40 | |
| 13 | 141 | Ayr | Ayrshire | 29/04/41 | Beaufighter If, 08/41. |
| 13 | 141 | Drem | East Lothian | 01/11/41 | Day of month arbitary |
| 13 | 141 | Acklington | Northumberland | 29/01/42 | |
| 11 | 141 | Tangmere | Sussex | 23/06/42 | |
| 11 | 141 | Ford | Sussex | 10/08/42 | |
| 10 | 141 | Predannack | Cornwall | 18/02/43 | |
| 12 | 141 | Wittering | Northamptonshire | 30/04/43 | Beaufighter VIf, 06/43. Mosquito II, 11/43. To Bomber Command 04/12/43. |