How long does it take for regular mail to arrive from New York Oklahoma?

The delivery time for regular mail from New York to Oklahoma depends on the specific locations of the sender and recipient, as well as the time of year and the volume of mail being processed. In general, regular mail (also known as First-Class Mail) within the United States typically takes between 2 to 5 business days to arrive, although it can sometimes take longer. Additionally, it's worth noting that delivery times may be affected by factors such as weather conditions, natural disasters, and postal service staffing levels, among others.