A wing for an aircraft, comprising A main wing having a wing leading edge, a wing trailing edge opposite to said wing leading edge, a wing root end, and a wing tip end opposite to said wing root end, and A wing tip device having an attachment end which is attached to the wing tip end of the main wing, a front blade having a front blade leading edge and a front blade trailing edge, and a rear blade having a rear blade leading edge and a rear blade trailing edge, Wherein the front blade and the rear blade extend away from the attachment end in a diverging manner, wherein the front blade leading edge extends in front of the rear blade leading edge and the front blade trailing edge extends in front of the rear blade trailing edge, when viewed in a chord direction, Wherein at the end of the wing tip device opposite to the attachment end the front blade has a front blade tip and the rear blade has a rear blade tip, wherein at the front blade tip the front blade extends under a different dihedral angle (v) than the rear blade at the rear blade tip, so that the front blade tip extends on a different level than the rear blade tip, when viewed in a wing thickness direction, Wherein the front blade leading edge and the front blade trailing edge both have a tangent-continuous developing, and Wherein the rear blade leading edge and the rear blade trailing edge both have a tangent-continuous developing, and The front blade trailing edge at least partially extends behind the rear blade leading edge, when viewed in the chord direction, so that the front blade and the rear blade overlap one another in an overlapping area, when viewed in the wing thickness direction, Characterized in that The front blade leading edge extends tangent-continuously with the wing leading edge, and the rear blade trailing edge extends tangent-continuously with the wing trailing edge. A main wing having a wing leading edge, a wing trailing edge opposite to said wing leading edge, a wing root end, and a wing tip end opposite to said wing root end, and A wing tip device having an attachment end which is attached to the wing tip end of the main wing, a front blade having a front blade leading edge and a front blade trailing edge, and a rear blade having a rear blade leading edge and a rear blade trailing edge, Wherein the front blade and the rear blade extend away from the attachment end in a diverging manner, wherein the front blade leading edge extends in front of the rear blade leading edge and the front blade trailing edge extends in front of the rear blade trailing edge, when viewed in a chord direction, Wherein at the end of the wing tip device opposite to the attachment end the front blade has a front blade tip and the rear blade has a rear blade tip, wherein at the front blade tip the front blade extends under a different dihedral angle (v) than the rear blade at the rear blade tip, so that the front blade tip extends on a different level than the rear blade tip, when viewed in a wing thickness direction, Wherein the front blade leading edge and the front blade trailing edge both have a tangent-continuous developing, and Wherein the rear blade leading edge and the rear blade trailing edge both have a tangent-continuous developing, and The front blade trailing edge at least partially extends behind the rear blade leading edge, when viewed in the chord direction, so that the front blade and the rear blade overlap one another in an overlapping area, when viewed in the wing thickness direction, Characterized in that The front blade leading edge extends tangent-continuously with the wing leading edge, and the rear blade trailing edge extends tangent-continuously with the wing trailing edge.