http://www.imdb.com/title/tt0118880/goofs

Errors in geography: When the plane is crashing at the Las Vegas strip the casinos that the plane hits / passes are all in wrong order. The plane passes the Stratosphere and is heading south on the strip. It then hits the guitar for the Hard Rock Hotel, which is not even on the strip, but is several blocks east and much further south. Then they show the Circus Circus sign, which is after the Stratosphere. A few clips later as the plane is about to touch down it passes the white wooden roller coaster of the Boardwalk Casino. The casino is on the wrong side of the plane if it is flying south, and the Boardwalk casino is miles south of The Sands, where the plane finally stops. The next exterior shot shows the Barbary Coast and it is in the correct place south of Circus Circus and to the correct side of the southbound plane. Other shots show the Mirage and the Sands being mixed up and the plane finally ends at the front door of The Sands (which is no longer in existence).