In January 1944, 609 squadron was re-equipped with Typhoons. On 15 February, 1 Squadron departed. On 1 March, 186 Squadron arrived, followed by 130 Squadron on 5 April, which was the day 186 Squadron departed. At some point after 2 April 137 Squadron departed. On 15 May, 74 Squadron arrived, followed by 127 Squadron the following day. On 1 July, 310 squadron arrived. On 3 July, Lympne became the HQ of 134 (Czech) Wing, that day also saw the departure of 74 Squadron. It was followed by the arrival of 312 Squadron and 313 Squadron on 4 July. These squadrons were all equipped with Spitfires. Also on 4 July 127 Squadron departed. On 11 July 310, 313 and 313 Squadrons departed. They were replaced by 1 Squadron, which was now equipped with Spitfires, 41 Squadron, 130 Squadron, and 504 Squadron, also equipped with Spitfires. On 12 July 504 Squadron departed, being replaced by 165 Squadron. On 10 August, 1 Squadron and 165 Squadron departed. The next day, 130 Squadron returned. On 8 September, 403 Squadron (RCAF) equipped with Spitfire IXs arrived in support of D-Day. On 27 August, Lympne ceased to be the HQ of 134 (Czech) Wing. On 29 September, 350 (Belgian) Squadron arrived, equipped with Spitfire XIVs. They were followed on 12 September by 610 Squadron and 350 Squadron on 29 September. The next day, 130 Squadron departed. In November, a detachment from 567 Squadron arrived. On 3 December 350 Squadron departed, followed by 610 Squadron the next day and 41 Squadron the day after that. Lympne was then downgraded to Emergency Landing Ground status. Consideration was given to building four runways at Lympne, with the longest being long, but it was noted that serious demolition work would be required and a number of roads would need to be closed.