A high-lift system for an aircraft includes a main wing, a lift flap arranged on the main wing of the aircraft, which lift flap is adjustable, between a retracted position and several extended positions relative to the main wing of the aircraft, by means of a flap adjustment mechanism for coupling the lift flap to the main wing and by means of a drive device, wherein the flap adjustment mechanism comprises at least two adjustment devices arranged so as to be spaced apart from each other in the wingspan direction, with each adjustment device including a first lever and a second lever, where the first end piece of the second lever is pivotally and slidably held on the main wing, while the second end piece of said second lever is pivotally held on the lift flap.