1 Pet sitting costs $10-$65 per day, depending on the location, length of the visit and number of sitter's duties. 2  A 15-minute visit, during which the sitter would refill food bowls and tend to the pets' bathroom needs, costs $10-$18. Some sitters charge extra for administering medicine. 2  The fee is about $5 to $10 per pill, ointment application or injection. 3  Most sitters, like Las Vegas Pet Sitting, charge a fee for holiday service, and sometimes for weekend service as well. 4  This is about 25 to 50 percent more than the usual price.