Ooty is around 230 km from Madurai, with a winding ghat-road climb into the Nilgiri hills on the final stretch. A Madurai to Ooty Cab booking with SR Cabs comes with drivers experienced on hill routes, so the drive stays comfortable even on the hairpin sections.
Given the distance and drive time (around 6 hours), most travellers book this as a one-way drop with a few days' stay in Ooty, or a round trip planned over 2–3 days rather than a single day.
SUVs (Innova, Ertiga, Xylo/Tavera) are the more comfortable choice for the ghat sections, especially with luggage for a longer stay.