TLTcruiser can be dissassembled into a standard suitcase with releasing just 3 bolts and nuts.
The hold up is the batteries. FAA regulations permits carrying into airplanes only limited size batteries: up to 2 packs of 100Wh each, or 2 160Wh - with early declaration to the airline company. (two 0.5kg batteries,approx 1Kg in total)
Standard TLTcruiser battery is 48V*7.5A=360Wh, which is too big.
It can be possible, when using other, smaller batteries. Or when using onther battery in destination. I would be happy to consult you around this issue.