UPS has quietly turned a sweeping network overhaul into a high stakes test of how much disruption customers will tolerate.

UPS has warned of shipping delays after the cargo plane crash Tuesday at the company’s global aviation hub in Kentucky that killed at least 12. The shipping giant says the crash will temporarily ...

UPS has resumed operations at its air hub in Louisville, Kentucky, following the deadly crash of one of its cargo planes on Tuesday afternoon, but it warned of delivery delays. Sandy Springs-based UPS ...