The song was Dean's sixth release on the country chart; it peaked at number three and stayed on the country chart for thirteen weeks. "PT-109" also went to number eight on the pop chart and number two on the Hot Adult Contemporary chart.
Dean's sixth country music single, "PT-109," achieved a peak position of number three on the country charts and remained there for thirteen weeks. The song also reached number eight on the pop charts and number two on the Hot Adult Contemporary charts.