Some airports require additional pilot training and ground familiarization , a spokesman says . Only two pilots in the world are qualified to fly into Guam 's Paro Airport . Matekane Air Strip , in the tiny African kingdom of Lesotho , features a stunted 1,312-foot-long runway perched at the edge of a couloir that sits at 7,550 feet . However , restricted airspace makes it tough to land at Reagan National .
Some airports require additional pilot training and ground familiarization , a spokesman says . Only two pilots in the world are qualified to fly into Guam 's Paro Airport . However , restricted airspace makes it tough to land at Reagan National .