The disc may fly outside a perimeter line and return to the playing field, and players may go out-of-bounds to make a play on the disc.
Note:
Players are allowed to leave the playing field to make a play on the disc and may enter the field at any point. However it is a turnover if an offensive player jumps from out-of-bounds and contacts the disc before they contact the playing field (Rule 11.3.1/ 11.5/ 12.3.1). Extra: It is bad spirit to intentionally leave the playing field and use players/objects on the sideline to disguise your location.