I have chosen 1820 because rail travel was not really available until after this time. I am thinking about people in rural areas, who were not at all wealthy.
I suggest that the bulk of the populace just had to walk. If they worked on farms, I suppose they could get the occasional lift on a farm wagon, or perhaps on market day, they all piled onto the farm cart and off they went.
I think that only the rich could afford a horse or horse and carriage. Travel by stagecoach was also out of the question, as being too expensive.
One idea springs to mind and that is travelling by boat, if you had one, just a simple rowing boat or barge, in the more industrialised areas.
This leads me to the point of all of this and that is I suggest that people tended to be restricted to their own neighbourhood: perhaps their own county, because it all depended upon how far you could walk in a day.
However, people must have made up their minds to go to another area, at times, to look for work perhaps and brought along the whole family later, when they had got settled in.
I got started on all of this because I am having difficulty finding a suitable "time zone" for a Charles Mabbutt from the Wiltshire area round about the year 1825: the nearest suitable matches seem to come from the Gloucester area and that got me wondering if this is a feasible match.
Best wishes,
Dave the Walrus