Yes. Even though you had only one small sale, Schedule D is required.
If your only capital gains income was from cap gains distribution(s) from a mutual fund, reported on a 1099-DIV, only then Schedule D is not required and and the entry made directly on line 6 of form 1040.
You have to file Schedule D and Form 8949. When you enter the sale of the stock in TurboTax it will create the necessary forms. To report the sale in TurboTax Online you will have to upgrade to Premier.