Allingham's funeral took place at St Nicholas' Church, Brighton at noon on 30 July 2009, with full military honours. His coffin was carried by three Royal Navy seamen and three RAF airmen. The service was preceded by a half-muffled quarter peal on the church's bells, rung by local ringers and members of the RAF and Royal Navy change ringing associations. Among the mourners were the Duchess of Gloucester, representing the Queen, and Veterans' Minister Kevan Jones. Senior Royal Navy and Royal Air Force officers, including Vice-Admiral Sir Adrian Johns and Air Vice-Marshal Peter Dye, represented the two services of which Allingham had been a member. Allingham's surviving daughter, Betty Hankin, 89, attended the funeral, with several members of her family. The funeral was followed by a flypast of five replica First World War aircraft; British and French buglers played the Last Post and Reveille; and a bell was tolled 113 times, once for each year of his life.