Conveyor (1), particularly for moving articles (P) in check-in areas in airports, comprising: a supporting frame (2) exhibiting an inlet (3), configured for substantially defining an area for loading the articles (P), and an outlet (4) at which the frame (2) comprises a respective first and second tracking rollers (5, 6), a conveyor belt (7) engaged with the tracking rollers (5, 6) and movable around these latter. The conveyor belt (7) is configured for receiving the articles (P) and moving them along a main direction (D) in an advancement direction (A) and in a return direction (R). The conveyor further comprises a protection device (8) associated to the supporting frame (2) and comprising a barrier (9); the conveyor belt (7) being interposed between the first tracking roller (5) and the barrier (9). The protection device (8) extending for all a length of the conveyor belt (7) and partially overlapping on this latter at a winding area of the same around the first tracking roller (5). The barrier (9) comprises an end portion (10) closely spaced from the conveyor belt (7) and facing, under the conditions of use of the conveyor (1), the top of this latter. The protection device (8) is movable with respect to the supporting frame (2) between a normal operative condition in which the end portion (10) of the barrier (9) is closely spaced from the conveyor belt (7) and a safety condition in which the end portion (10) of the barrier (9) is spaced from the conveyor belt (7), and viceversa.