Most Refugees travel by foot from wherever they are from, listed below are the approximate distances many have traveled and how many 24 hour days it would take to get to Turkey where they would then board an unsafe raft and arrive in Greece.
Syria- 1,269 miles, 15 days
Iraq- 1,593 miles, 19.5 days
Iran- 2,260 miles 28.5 days
Afghanistan- 3000 miles, 38 days
Pakistan- 3206 miles, 40 days