The RAF Association Barnsley 405 branch, which began in 1946, was forced to close due low numbers of active members.
The association helps raise funds for ex-RAF members and their welfare.
On December 15, the remaining four members travelled to the Yorkshire Air Museum to ‘Lay up the Standard of 405 Branch RAFA’.
The service honoured the closure of the branch with a short service and blessing, where a flag was mounted.
Joe Pinguey, a volunteer at the association, said: “It was awfully sad to say goodbye to RAFA.
“On the Sunday, there was only four of us that travelled to Elvington to follow the correct protocol and close the group.
“Sadly, the group has been short of new members which meant it was hard to maintain and develop, as we’re getting too old to continue.
“It was lovely to say that at our last Wing Appeal, we raised £542 at the Tesco Extra store at Stairfoot. I would like to thank the store for all of their support over the years and for helping us say goodbye.
“We should also say thanks to Ian Richardson and all the staff at the Yorkshire Air Museum for all their help.
“The group is gone, but it will not be forgotten.”