How long will it take for mail to be delivered from Maryland New Hampshire?

The delivery time for mail from Maryland to New Hampshire depends on the shipping method you choose and the distance between the origin and destination. For first-class mail, the USPS estimates that it will take 2-3 business days for delivery. For priority mail, the USPS estimates that it will take 1-3 business days for delivery. For express mail, the USPS estimates that it will take 1-2 business days for delivery.