Sheffield is not situated on the coast, from Sheffield to the nearest coast is about 88 miles
Train, bus or car. There are no flights from Glasgow to Sheffield.
About 50 miles
About 160 miles
736 miles
About 250 miles
105 miles
the coast is 40km from the coast
By road, 256 miles. See the link below.
The AA rout planner says it is 3.8 miles
With a regular flight (and pauses in Munchen and Athens) the duration is very long.During the summer I suppose theat you have charters from Sheffield (or London, Manchester) - approx. 3 h.
3,147 miles