420 Squadron Lineage
| Redesignated in english as '420 Composite Squadron' and in french as '420e Escadron composite'. | 17-Jun-92 | |
| Redesignated in english as '420 Combat Support Squadron' and in french as '420e Escadron de soutien au combat'. | 01-Apr-93 | |
| Reduced to nil strength | 15-May-95 | |
.jpg "420 Squadron") |
Reformed and designated in english as '420 Air Reserve Squadron' and in french as '420e Escadron de la réserve aérienne'. | 20-May-75 |
| Redesignated '420 "City of London" (Fighter) Squadron' | 04-Sep-52 | |
| Disbanded | 01-Sep-56 | |
.jpg "420 Squadron") |
Authorized as '420 (Bomber) Squadron' | 07-Dec-41 |
| Disbanded | 05-Sep-45 | |
| Reformed as '420 (Fighter) Squadron' | 15-Sep-48 | |
| Notes: | 1. | All info from A-AD-267-000/AF-004. |
| 2. | A-AD-267-000/AF-004 shows most french designations as 'escadron', notwithstanding that 'escadrille' was used until Feb 1989 when CanForGen 003-89 mandated the use of 'escadron'. |