The case fits in any car trunk or on the front seat of even the smallest compact rental car or taxi, so there's no hassle taking it to the airport. Wrap frame padding material on each part.
Wheels go in the lid.
Nest two halves of frame into each other, and place in case. XL frame or seat will not fit in the Voyager case, however you can achieve the same rider fit by using a Large frame and seat with a XXL bottom bracket extension.