Why Is Last-Mile Delivery So Expensive, and How Do You Fix It?
Last-mile delivery is expensive because the final leg carries small loads to many separate addresses, with parking, waiting, failed attempts and returns adding cost at every stop. It is commonly described as the most expensive part of delivery. The fixes are fewer failed drops, more stops per route and clear, timely updates so customers are ready to receive.
- The last mile is commonly the costliest leg because cost is per stop, not per load.
- A failed drop means paying for the same delivery at least twice.
- Density — more stops closer together — is the biggest structural lever.
- Good customer communication is a cost lever, not just a service nicety.
Why is last-mile delivery so expensive?
Earlier legs move full trucks between a few points, so cost is spread across many items. The last mile is the opposite: small drops at many separate addresses. Drivers spend time finding addresses, parking, climbing stairs and waiting for signatures. Cost is driven by stops more than kilometres, so anything that adds a stop or slows one — a failed attempt, a return collection — hits margin directly.
Illustrative example.
How to reduce failed deliveries
Failed drops are the costliest last-mile problem: the vehicle, driver and fuel are paid for and nothing is delivered. Common causes are customers not in, closed business sites, wrong or incomplete addresses and missed time windows. Most are preventable by checking addresses when the order is placed, confirming the slot the day before and offering alternatives such as a neighbour, locker or pick-up point.
How to fix last-mile delivery in five steps
Process- 01
Measure first-time delivery
Track the share of orders delivered on the first attempt, by zone, customer type and driver.
- 02
Check addresses at order entry
Validate addresses, landmarks and site opening hours when the order is placed, not at the door.
- 03
Group by zone and day
Offer delivery days by area so each route has more stops closer together.
- 04
Confirm the slot
Send the planned window the day before and let customers rearrange or choose an alternative.
- 05
Update live on the day
Share a narrow arrival window and alert customers automatically when a delay is predicted.
- 01
Measure first-time delivery
Track the share of orders delivered on the first attempt, by zone, customer type and driver.
- 02
Check addresses at order entry
Validate addresses, landmarks and site opening hours when the order is placed, not at the door.
- 03
Group by zone and day
Offer delivery days by area so each route has more stops closer together.
- 04
Confirm the slot
Send the planned window the day before and let customers rearrange or choose an alternative.
- 05
Update live on the day
Share a narrow arrival window and alert customers automatically when a delay is predicted.
Improving delivery density
Density means more stops in a smaller area on each route. It improves when orders are grouped by zone, delivery days are offered by area rather than every day everywhere, and routes are optimised rather than fixed. Even small gains matter, because driving between stops takes up a large share of a driver’s day.
Keeping customers informed
Customers are more likely to be in, and less likely to call, when they know when to expect you. Send the delivery window when the route is planned, a narrower window on the day and a prompt alert if anything changes. Owllys links these updates to live tracking and promised dates, so the message stays true when plans move.
Questions people ask
What is last-mile delivery?
Last-mile delivery is the final step of getting goods from a local hub, store or depot to the customer’s door or site. It applies to parcels, groceries, spare parts and business deliveries alike. It is the leg customers see directly, so it shapes their view of your whole service.
What causes failed deliveries?
The most common causes are customers not being available, closed business sites, wrong or incomplete addresses, access problems and arrival outside the agreed window. Goods refused at the door because they are damaged or incorrect are another cause. Recording a reason for every failed attempt shows which fixes will pay back fastest.
Do lockers and pick-up points reduce last-mile cost?
They can. Delivering many parcels to one locker or pick-up point replaces many separate stops with one, and failed attempts largely disappear. They suit small parcels and customers in dense areas, and work best offered as a choice at checkout or as a fallback after a missed delivery.