Related Clues:

• Former airline initials
• Its frequent flier prog. was called Aviators
• Former United rival
• "Up, up and away" flier
• Pan Am rival
• Airline that Howard Hughes bought in '39
• Yankee Clipper company
• Howard Hughes' old airline
• Airline letters
• Onetime Lindbergh employer
• Co. once owned by Howard Hughes
• Airline whose last flight was Dec. 1, 2001
• USAir rival
• The Beatles arrived in New York in 1964 on this
• Former rival of Pan Am