A few years back I was in Mexico City and called Delta to move my next day's flight to LAX from the afternoon to early morning. The agent told me, How about tonight at 10 PM? They were moving a jet from Atlanta to LAX and they just made the flight available. I was the only passenger and I already had a FC ticket. When we landed - the plane was at Delta who's customs had close, they took me in a private car to the International terminal.