The transfer from one aircraft to another aircraft belonging to the same or different airline without a change in the flight number. Known also as a change of equipment or change of gauge.

• ONE-MAN PICTURE
• ONE-OFF
• ONERANDO PRO RATA PORTIONIS
• ONERARI NON
• ONERATIO
• ONERATUR NISI
• ONERIS FERENDI
• ONEROUS
• ONEROUS
• ONEROUS CONTRACT
• ONE SATISFACTION RULE
• ONE-SHOTS
• ONE STOP SHOP
• ONE-TIME BUYER
• ONE-TIME ONLY ADDITION
• ONE-TIME ONLY DEDUCTION
• ONE-WRITE SYSTEM
• ON FILE
• ONLINE
• ONLINE ADVERTISING
• ONLINE ADVERTISING MEASURES
• ONLINE ANALYTICAL PROCESSING
• ONLINE BANKING
• ONLINE BROKER
• ONLINE DATABASE