Guests staying at Courtyard by Marriott Detroit Metropolitan Airport Romulus enjoy an indoor pool, a fitness center, and free WiFi in public areas. If you drive, self parking is USD 8.00 per night, or you can take advantage of the free airport shuttle (available 24 hours). Front-desk staff can answer questions 24/7, and assist with luggage storage, dry cleaning/laundry, and securing valuables. Additional amenities include a 24-hour business center, express check-in, and express check-out.