If you're looking for a quick, cheap trip from metro Detroit to Ann Arbor, Amtrak has an offer for you.
Throughout the summer, Amtrak is offering $5 fares from metro Detroit stations to Ann Arbor and back.
The discount is only valid on Amtrak's Wolverine line, and is valid for an adult rail fare between Detroit, Pontiac, Royal Oak, Dearborn and Ann Arbor.
To get the discount, you have to click the book now button at this link, and it will be automatically applied when qualifying travel is selected.