N338FL (cn 505-00139) N338FL seen in Flexjet's colors outside the Constant Aviation hangar at CLE at 13:15. This plane flew with Flight Options as OPT338, in their colors, until mid 2015. Its last flight as N338FL was from BUF to CLE arriving hours earlier at 07:44. Seen here with a sticker covering its new registration, this plane is now N355FX.