Flint Creek is an unincorporated area and census-designated place (CDP) in Delaware County, Oklahoma, United States.

Flint Creek is 5 miles (8 km) southeast of the town of Kansas.

According to the United States Census Bureau, the CDP has a total area of 6.4 square miles (16.6 km2), all land.

There were 326 housing units at an average density of 51.5 per square mile (19.9/km2).

12.9% of all households were made up of individuals, and 2.3% had someone living alone who was 65 years of age or older.