Originally Posted by
AsiaTraveler
Most rolling bags have connectors available these days. It's not pretty, but I've used those to chain bags together and get to the bag check before. I think I've personally moved 4 bags that way when my kids were small.
Some non-rolling carry-ons also have a flap/slot on the back where you can slide it over the handle of a rolling suitcase.
Or simply get bags with spinners. I travel with 4 28inch hard side cases. No problem in airport since on spinners.