The last RAF claims were made at 15:45 on 10 November by Lt J Baalman, Lt E G Davies and Lt H B Oldham on No 29 Squadron, each claiming a Fokker DVII crashed in the vicinity of Moorleghem.
Other more knowledgeable Forumites will doubtless correct me, but the last claims I've got for other services are:
USAS - Maj M Kirby, 94th Squadron, a Fokker DVII destroyed at 10:50 on 10 November.
Belgian - Capt F M L Jacquet and Lt M A E J G G M de Crombrugghe de Looringhe of the 9me Escadrille, a two-seater east of Ghent at 09:00 on 6 November.
French - Sgt J A Connelly and MdL J Morvan of Spa 163, each claiming a Fokker DVII destroyed at 12:15 on 4 November.
I have details of two German claims on 10 November - Ltn
Hans von Freden of Jasta 50, a Bristol Fighter (no time) and OffStllv
Friedrich Altemeier of Jasta 24, an RE8 at 09:50 (British time) over Solre.
Graeme