How would he have traveled? Was it generally a safe journey?
The distance between London and S-u-A is 101 miles, so it depends on the mode of travel:
Horse-drawn carriage: Typically makes 10 miles per day, so 10 days.
Horse-back alone: Typically 20-30 miles per day, so 4-5 days.
On foot: Typically 20 miles per day, so 5 days.