From Detroit airport fly to Saginaw airport then taxi to Saginaw. 2hrs 34min $305. From DTW McNamara Terminal bus to East Lansing then Bus to Saginaw. 4hrs 52min $32. From McNamara Terminal bus to Detroit Metro Airport, line 125 bus to Detroit, then Bus to Saginaw. 5hrs 05min $24. From Detroit drive to Saginaw. 1hrs 51min $15.