Key takeaways
- The last mile is the final delivery leg to the customer.
- It is typically the costliest and most service-sensitive segment.
- It drives both delivery cost and customer experience.
- Optimizing it takes routing, live tracking, and exception handling.
How does last-mile delivery work, and why is it hard?
The last mile moves individual orders from a local hub to many scattered destinations, often homes, with tight windows and proof-of-delivery requirements. Because stops are dispersed and each one is small, cost per unit is high and routing is complex. Failed deliveries and redeliveries add cost and erode the experience.
Managing it well means optimized routing, real-time tracking, clear delivery windows, and fast handling of exceptions like missed deliveries. It is also the most visible touchpoint, so it shapes brand perception. InfoSun improves last-mile performance by turning visibility into faster, more reliable decisions across the leg.
Why last-mile delivery matters
- It is the largest cost component of many delivery operations.
- It is the touchpoint customers judge the brand on.
- Better routing and tracking cut cost and failed deliveries.
- Exception handling protects the promised delivery window.
Last-mile delivery in a 3PL and logistics operation
A 3PL running last-mile for an e-commerce client adds live tracking and exception alerts to its control tower, so at-risk deliveries surface before the window closes and drivers are re-sequenced on the fly. Failed deliveries drop, customers get accurate updates, and the cost of redeliveries falls.
Frequently asked questions
Why is last-mile delivery so expensive?+
Because it moves small, individual orders to dispersed destinations with tight windows, so there is little economy of scale per stop, and failed deliveries trigger costly redeliveries. It commonly accounts for a large share of total delivery cost, which is why routing and exception handling matter so much.
How can last-mile delivery be improved?+
Through optimized and dynamic routing, real-time tracking, clear customer communication of delivery windows, and fast handling of exceptions such as missed deliveries. Surfacing at-risk deliveries in a control tower so the team acts before the window closes is where much of the improvement comes from.
Written and reviewed by the InfoSun operations team. Last updated July 13, 2026.