UPS is blaming the high volume of packages sent through their service in the last few days. In an update on their website, the company informed it’s customers that it “is experiencing heavy holiday volume and making every effort to get packages to their destination; however, the volume of air packages in our system exceeded the capacity of our network immediately preceding Christmas so some shipments were delayed.”
They also say that they will not be making any deliveries on Christmas Day, and will resume their service on Thursday. If you’re waiting on a package to arrive, you could have a few days wait ahead of you.
You can check on the status of any shipments you have with UPS through their website.