A propeller fan, comprising: a hub formed into a cylindrical shape, and a plurality of blades extending outwards from a side of the hub, each of the plurality of blades including: a radial cross section that is a cross section of each of the blades in a first plane including a center axis of the hub; an inclination angle (φ) defined in the radial cross-section view made by a straight line passing through a middle point in thickness on an outer circumferential side end of the blade and a middle point in thickness on an inner circumferential side end of the blade with a second plane orthogonal to the center axis of the hub and passing through the point C; a blade end that is an outer circumferential side end portion of the blade; a leading blade end that is a front end of the blade end viewed in a rotation direction of the propeller fan; and a trailing blade end that is a rear end of the blade end viewed in the rotation direction of the propeller fan, characterized in that the inclination angle (φ) increases toward a side of a negative pressure surface of the blade as compared to the second plane, and the inclination angle (φ) is monotonically increasing, in a direction from an intermediate position located between the leading blade and the trailing blade end toward the trailing blade end, in an area extending from the intermediate position to the trailing blade end. a hub formed into a cylindrical shape, and a plurality of blades extending outwards from a side of the hub, each of the plurality of blades including: a radial cross section that is a cross section of each of the blades in a first plane including a center axis of the hub; an inclination angle (φ) defined in the radial cross-section view made by a straight line passing through a middle point in thickness on an outer circumferential side end of the blade and a middle point in thickness on an inner circumferential side end of the blade with a second plane orthogonal to the center axis of the hub and passing through the point C; a blade end that is an outer circumferential side end portion of the blade; a leading blade end that is a front end of the blade end viewed in a rotation direction of the propeller fan; and a trailing blade end that is a rear end of the blade end viewed in the rotation direction of the propeller fan, a radial cross section that is a cross section of each of the blades in a first plane including a center axis of the hub; an inclination angle (φ) defined in the radial cross-section view made by a straight line passing through a middle point in thickness on an outer circumferential side end of the blade and a middle point in thickness on an inner circumferential side end of the blade with a second plane orthogonal to the center axis of the hub and passing through the point C; a blade end that is an outer circumferential side end portion of the blade; a leading blade end that is a front end of the blade end viewed in a rotation direction of the propeller fan; and a trailing blade end that is a rear end of the blade end viewed in the rotation direction of the propeller fan, the inclination angle (φ) increases toward a side of a negative pressure surface of the blade as compared to the second plane, and the inclination angle (φ) is monotonically increasing, in a direction from an intermediate position located between the leading blade and the trailing blade end toward the trailing blade end, in an area extending from the intermediate position to the trailing blade end.