JEDDAH, 24 October — Swissair will start operating its suspended flights to and from Jeddah, effective from Sunday. Its new winter timetable schedule: Jeddah-Zurich on Sundays & Thursdays and Zurich-Jeddah on Saturdays & Wednesdays; and Riyadh-Zurich on Mondays, Wednesdays & Fridays and Zurich-Riyadh on Sundays, Tuesdays & Thursdays, the airline announced yesterday.