[templar]

As long as the cities aren't over a few hundred miles apart, or are directly north/south or east west of each other.

I've driven clear across the U.S. before without ever considering the curvature of the earth. I don't even have a road map that shows it.

[RadioAstronomer]

I've driven clear across the U.S. before without ever considering the curvature of the earth. I don't even have a road map that shows it.

Except the map makers took the curvature into consideration or the miles would not be accurate.