From Detroit airport fly to Saginaw airport then taxi to Saginaw. 1hrs 14min $302. From DTW McNamara Terminal bus to East Lansing then bus to Saginaw, MI. 4hrs 52min $32. From Detroit Metro Airport line 125 bus to Detroit then bus to Saginaw, MI. 5hrs 36min $27. From Detroit drive to Saginaw. 1hrs 49min $13.