Which of the following is not a recommended parking option at O'Hare for regular travelers?

Valet service is not a recommended parking option for regular travelers at O'Hare due to its typically higher costs and the limited convenience it provides compared to other options. Valet service is often more appealing for travelers looking for a high-end or premium experience, usually for those needing immediate access to their vehicle upon arrival or for special occasions.

Economy lots, daily lots, and long-term parking are designed with regular travelers in mind, offering affordable rates and straightforward access to the terminals. These options provide greater flexibility for those who may need to travel for extended periods or frequently use the airport. This makes them more suitable for regular use compared to valet services, which cater primarily to those seeking convenience over cost.