I don’t have the money for air travel,so what if I walked to London? Just to keep it simple my entire adventure would include planes, trains, automobiles and of course walking. I roughly estimate that you would walk about a total of about 10,000 km. You could walk 42 km per day at a rate of 5km an hour, which would take you about 8 hours. That means you would have about 239 days of walking.
So I probably can’t make it.