HAve a look on Google maps UK. it will give you all the answers time, distance, best route etc, its great.
Dover is in Delaware.
109 miles between Newcastle and Sheffield.
23 miles
182 miles
168 miles
about 470 miles
637 miles
Train, bus or car. There are no flights from Glasgow to Sheffield.
205 miles
43 miles
38 miles by road.
It is 162.26 miles.