Link to an Imgur post to handle a gallery of photos. Pictures from a trip flying with our two Bromptons in checked luggage, one in the B&H Foldon Hard case (https://www.b-w-international.com/en/bike/cases/b-w-foldon.case) and one in the Radical Design Cyclone IV Chubby trailer (https://www.radicaldesign.com/cyclone-iv-chubby)
We’ve so far only used this setup for getting to/from the airport, not actual touring, so we just store it wherever we’re staying. The second case strapped on top is kind if cumbersome, if we were going to get into bike/plane touring I’d probably want a second Cyclone