Extra stops are charged according to whether or not the stop is en-route to a pickup/destination. Stops are priced according to location, extra time, distance, and urban setting.
There is a $10 charge for a local additional stop made during a trip, en-route to the destination. You can add a stop when you book, or ask your driver during the trip.
Stops that are farther away, not en-route to the destination, or outside the immediate pickup or destination area may cost more, depending on location, added time and distance, tolls, or any other incurred fees.