Sion Airport (SIR) By Airport Guide 485 Facebook Twitter Pinterest WhatsApp Sion Airport Switzerland Airport Website IATA: SIR ARRIVAL DEPARTURES SION FLIGHTS LEAVE A REPLY Cancel reply Please enter your comment! Please enter your name here You have entered an incorrect email address! Please enter your email address here Save my name, email, and website in this browser for the next time I comment. Δ This site uses Akismet to reduce spam. Learn how your comment data is processed.