A deflector apparatus for a vehicle includes a fixed frame, a movable frame positioned at an upper side of the fixed frame and being rotatable between a raised position and a retracted position, a mesh member connected to the fixed frame and the movable frame and brought to a raised state and a retracted state, and a spring member. The spring member includes a sliding portion fitted to a guide groove formed at the movable frame and slidably making contact with the guide groove to transmit a biasing force of the spring member in a state where the movable frame is rotating. The spring member further includes an engagement portion engaging with the movable frame when the movable frame is in the raised position. The movable frame is configured to be maintained at the raised position by the engagement with the engagement portion of the spring member.