I had an item ping pong back and fourth between two major cities for 2 weeks before it finally arrived back at my doorstep! All I could do was sit and watch it go out to one city, come back closer to me, then back out again... over and over! It was undeliverable as addressed according to the buyers local post office so it was being returned to me. It was gone for a total of 3 weeks but I sent it back out and it arrived in 4 days by USPS First class, with delivery confirmation. This was between NY and Ohio.