Does UPS / FedEx usually deliver packages within their expected delivery time window?
Yes, FedEx usually delivers 95% or better on time against their published commitment. UPS is usually slightly less, maybe 90-95% on time. Depending on where you’re shipping from, FedEx Ground Service is usually quicker to 20-30 of the zip codes in the US than UPS. FedEx has a advantage in terms of on time delivery percentage plus they are quicker to more zip codes by 1 day. .