FedEx is not always on time with deliveries, but there are a few reasons why this may happen. First, FedEx can be spread very thin due to the high demand for their services. This can lead to delays because they are not able to allocate the necessary resources to deliver packages on time. Second, FedEx may have to wait for a truck to arrive that is full or overloaded.
This can also lead to delays. Finally, FedEx may have to navigate through traffic, which can also lead to delays.
