How long does it take a letter from Greenville SC to arrive in Walhalla SC?

Greenville and Walhalla are both in South Carolina, and the distance between the two cities is about 49 miles. According to the United States Postal Service, first-class mail typically takes 1-3 business days to arrive at its destination. Therefore, a letter from Greenville SC should arrive in Walhalla SC within 1-3 business days.