I've done some preliminary research, a lot of it somewhat confusing for a first timer. What I'm looking for is the following: a folding bike that fits into a hard case that meets the airline requirements for checked luggage. Ideally, I would like a hard case that converts into a trailer that would allow me to place a backpack & other small stuff into it. So that when I arrive at a destination, I can take the bike out of the case, assemble it, put my backpack into the case (which converts into a trailer), and then ride away from the airport on my bike with the backpack in the trailer.
Am wondering what manufacturers and models people here have found useful for this type of travel.