 Worn out with overwork and worry, his illness taking over his worn out body, Porte died suddenly in Brighton, East Sussex, of pulmonary tuberculosis on 22 October 1919, age 35; he was buried in Brighton and then re-interred in June 1920 at West Norwood Cemetery alongside his mother and three of his brothers who pre-deceased him.His monument is a cross and anchor with an epitaph, "Colonel Porte was the inventor of the British flying boats.