Tyler Cowen points to what the cost of transportation used to be, from The Pursuit of Glory, Europe 1648-1815

In England it was calculated that one horse was needed for every mile of a journey on a well-maintained turnpike road. So, for the 185 miles from Manchester to London, 185 horses had to be kept stabled and fed to deal with the seventeen changes required by the stagecoaches which traveled the route. Those horses in turn required an army of coachmen, postillions, guards, grooms, ostlers and stable-boys to keep them running.

…

A journey from Augsburg to Innsbruck by stagecoach, although little more than 60 miles as the crow flies, would have cost an unskilled laborer more than a month’s wages just for the fare.

Kinda puts gripes about airfare in perspective.