Bike box or bag?

Very straightforward:

• Remove skewers, put in stand
  
• Pull out wheels
  
• Fit bike onto stand, close skewers
  
• Pull out seatpost (or, if you are shorter than I am, you might not need to do this)
  
• Fit the front velcro wrap to the top-tube/down-tube
  
• With a quill stem pull the stem/bars assembly, with ahead just pull the bars
  
• Velcro the bars to the front velcro wrap with the straps provided
  
• Take the pedals off, pull the chain-cover over the cranks and mech, velcro in place
  
• Shove the whole thing into the bag, strap it down with all the handy velcro and click-fit webbing you'll find inside
  
• Zip the bag up, fit the wheels into the external pouches
  
• Head to airport