| American Airline | Air Canada |
| Alaska Airline | Continental |
| Canadian Airline | Delta Airline |
| Tower Air | America West |
| Northwest Airline | Nationair |
| Southwest Airlines | Midwest Express |
| United Airline | Trans World Airline |
| Cathay Pacific | Lufthansa Airline |
| Singapore Airline | British Airline |
| Japan Airline | Japan Air System |
| A A | A C |
| A S | C O |
| CP | D L |
| F F | H P |
| K W | N W |
| N X | T W A |
| U A | U S |
| W N | Y X |