The final UK flying display of 2020 was Showcase Day III at the Imperial War Museum Duxford. As one of the largest aerial tributes to the 80th anniversary of the Battle of Britain, the centrepiece of the show was a five-ship tailchase of Spitfires and Hurricanes – but unusual combinations of other Second World War aircraft also featured.
| Time | Display |
| 00:03 |  The Twins (PBY-5A Catalina, DH.89 Dragon Rapide) |
| 00:07 | Bell 47 |
| 00:09 | Fighters (P-51D Mustang, TF-51D Mustang, HA-1112 Buchon) |
| 00:12 | Radial Trio (DHC-2 Beaver, T-6 Harvard, NA-64 Yale) |
| 00:14 | Battle of Britain (Spitfire Mk.Ia x3, Hurricane Mk.I, Hurricane Mk.XII) |
