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Now you know how one box gets to your door!

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How does Amazon delivery work?

▶ 4:38 video · Watch on YouTube

  1. 0:00 Ordered at night, here by morning
  2. 0:33 Guessing what you will buy
  3. 1:16 Robots bring the shelf
  4. 2:09 Sorted, then sorted again
  5. 2:49 The last mile
  6. 3:40 Why it is so fast

Your turn

Run the delivery yourself

Place warehouses on the map, then sort the boxes onto the right trucks. Earn stars on every level.

How does a box get to your door?

At night, Maya picks a new book on the computer. In the morning, the box is at her door. Here is how.

It was already close

The book was waiting in a giant building near Maya's town. It did not have to come from far away. That is the big secret!

Robots bring the shelf

Inside the giant building, little robots carry tall yellow shelves to the helpers. A helper takes out the book and puts it in a box. A machine sticks on a label.

Sorting

The box rides on a moving belt and then on a big truck. Helpers put each box in the right bag. Every van gets its own set of bags.

The van

In the morning, the driver fills the van. A phone shows the way to every house. At Maya's door, the driver puts down the box and takes a picture.

Did you know? In the big building, the shelves come to the people. The people don't have to walk to the shelves!

← More explainers

This page explains how the delivery system works in general. Numbers about Amazon's own network are the company's figures, with the year they were reported. Ahaboo is independent and isn't affiliated with Amazon.

How does Amazon delivery work? The short answer

Amazon delivery is a relay. A package moves from a fulfillment center (where it is picked and packed), usually to a sort center (where it is sorted by ZIP code), then to a delivery station (where it is sorted by van route), and finally onto a van or car for the last mile to your door or a locker.1

The surprising part is when the speed is decided. Amazon says much of it comes before you even click "buy": Amazon forecasts what people in each area will want and stores those items in warehouses near them.24 A box that only has to travel a short distance can arrive the next morning.

  1. Forecast and place: stock is moved near likely buyers in advance.
  2. Pick and pack: robots bring shelves to workers; the item is packed and labeled.
  3. Sort, twice: by ZIP code at a sort center, then by route at a delivery station.
  4. The last mile: a driver follows a computer-planned route and photographs the drop-off.

How does Amazon deliver so fast?

Mostly by shrinking the distance. In 2023 Amazon split its U.S. network into eight regions, each with a broad stock of products. It said that more than 76% of the orders it filled came from inside the customer's own region, and that the average distance from its sites to customers had fallen 15% that year, with 12% fewer handoffs in the middle of the trip.2

To decide what goes where, Amazon uses machine-learning forecasts. Its 2025 model adds weather and holiday schedules to past sales, and the company's own examples are sunscreen on Cape Cod in summer and ski goggles in Boulder during ski season.4

Amazon says its speed gains "come primarily from placing products closer to customers," and that the people who pick, pack and drive do the same work for next-day orders as for orders that used to take two days or more.23 It reported that in 2025 more than 13 billion items arrived the same or next day worldwide, including more than 8 billion to U.S. Prime members.3

How do Amazon warehouses work?

In a robotic fulfillment center, items are stored in coded bins inside tall shelving units called pods. Small, flat robots navigate by 2D barcodes on the floor, slide under a pod, lift it and carry it to a worker at a fixed station.67 This idea is called goods to person: instead of people walking the aisles, the shelves come to them. Pods can weigh up to 1,000 pounds, and because robots, not people, move around the storage area, pods can be packed tightly, with popular ones parked close to the stations.7

The idea came from Kiva Systems, whose founder wanted to save workers "a lot of running back and forth" by having robots bring the shelves. Amazon bought Kiva in 2012 for $775 million, and it became Amazon Robotics.89 Amazon says it has deployed more than a million robots since then.10

StepWhat happens
StowNew stock is placed into coded pod bins; the system logs exactly where each item is.6
PickA robot brings the pod; a light shows the bin; the worker picks and checks the item and puts it in a yellow tote.6
PackThe system suggests a box size from the item's dimensions; tape machines dispense just enough tape.6
SLAMScan, label, apply, manifest: the box is scanned and weighed, and a printed label is blown on with a puff of air.6
ShipA scanner reads the label and sends the box down the chute to its truck; trucks are packed floor to ceiling.6

What happens at a sort center and a delivery station?

Each truck carries more than 2,000 boxes, according to Amazon. Some packages fly on Amazon Air. At a sort center, packages from many places are sorted by ZIP code and sent on to delivery stations or partners such as the U.S. Post Office.1 Robots like Pegasus carry parcels to the right chute by ZIP code or delivery route.7

At a delivery station, workers sort packages into bags by van route, and the bags are loaded into vans route by route.11 In Amazon's 2023 van tour, a driver said his van could hold about 350 packages.12

Who delivers Amazon packages?

Many are delivered by drivers working for Delivery Service Partners (DSPs), small companies that run delivery vans for Amazon. Amazon said in 2024 there were more than 390,000 DSP drivers worldwide.14 Others go through Amazon Flex, where independent drivers use their own vehicles and pick delivery blocks; their routes account for package count, locations, and past weather and traffic.15 Drivers load out at the station in the morning, and their phone shows every stop in order.13

Why is the last mile the hardest part?

The last mile is the final leg from a local hub to your door. It's usually the shortest part of the trip but often the most expensive: for deliveries to homes it's estimated at around 53% of total shipping cost, because each van makes many separate small stops.1819

Choosing the order of the stops is a version of the traveling salesman problem: find the shortest path that visits every stop once. The only known method that is guaranteed to find the very shortest route takes time that grows exponentially with the number of stops.16 Even 10 stops can be visited in 3,628,800 different orders. So routing software searches for a very good route quickly, and real routes also need what experienced drivers know, like a tricky driveway or a building entrance; MIT's Center for Transportation & Logistics and Amazon ran a research challenge on exactly that gap.17 At the door, the driver takes a proof-of-delivery photo.4

How does Amazon same-day delivery work?

Many same-day orders come from smaller buildings close to customers, often near big metro areas. They are part fulfillment center and part delivery station, so an item can be picked, sorted and put on a van from one site.25 Amazon says Same-Day Delivery reached more than 9,000 U.S. cities and towns in 2025.3 In 2026 it said a service called Amazon Now delivers some groceries and essentials in about 30 minutes from small sites in some U.S. cities.23

What does fast delivery cost?

Speed isn't free. More deliveries can mean more vans and more trips: New York City's comptroller reported that packages delivered in the city each day rose from 1.1 million in 2017 to 2.5 million in 2024, and that traffic crashes rose near last-mile facilities.22 In 2024 a U.S. Senate committee staff report said Amazon's own studies linked the pace of warehouse work to injuries; Amazon said earlier findings in the investigation were wrong and misleading.2021 On the other side, placing stock closer to people cuts the miles each package travels, which Amazon says reduces traffic and emissions.4 Prime members can also choose one delivery day a week (Amazon Day), so their orders can arrive together instead of in separate trips.24

Common misconceptions

"It's fast because everyone rushes." Amazon says its speed comes mainly from where products already sit, not from people working faster.2
"My box crossed the country overnight." Often it didn't: Amazon said in 2023 that more than 76% of U.S. orders were filled from within the customer's region.2
"Robots do everything." Robots carry shelves and sort parcels, but people still pick, check, pack, load and drive.67
"The long-distance part is the expensive part." The last mile is usually the shortest leg, but often the most expensive.18
"Finding the shortest route is easy for a computer." It's a famously hard problem; good routes come from fast search plus drivers' local knowledge.1617

Keep exploring

The van's map runs on satellites: see how GPS works. Your order travels as data first, over the internet, and the forecasts are a kind of AI. The robots and scanners are run by computers, and many delivery vans now run on batteries.

FAQ

How does Amazon deliver so fast?

Mostly by storing items close to you before you order. Amazon forecasts what people in each area will buy and places that stock in nearby warehouses, so many orders travel a much shorter distance than they would from a faraway warehouse. Amazon says its speed gains come mainly from this placement, not from people working faster. Robots that bring shelves to workers, sorting and software-planned van routes also help.

What is an Amazon fulfillment center?

A large warehouse where products are stored, picked, packed and labeled. In many of them, small robots carry tall shelving units called pods to workers at fixed stations. The worker picks the item, it's packed in a right-sized box, labeled, and sent down a chute to a truck.

How does delivering for Amazon work?

Many packages are delivered by drivers who work for Delivery Service Partners, small companies that run fleets of vans for Amazon. Others are delivered through Amazon Flex, where independent drivers use their own cars and pick delivery blocks in an app. Some packages are handed to partners such as the U.S. Post Office for the last leg.

How does Amazon same-day delivery work?

Many same-day orders are filled from smaller sites close to customers, often near big metro areas. They work like a fulfillment center and a delivery station in one building, so items can be picked, sorted and put on a van within hours. Amazon says Same-Day Delivery reached more than 9,000 U.S. cities and towns in 2025.

What does "out for delivery" mean on Amazon?

It usually means your package has left the delivery station and is with a driver on today's route. The driver's device sequences all the stops, so the time it arrives depends on where your stop falls in the route.

Why is my Amazon package sometimes slow?

Fast delivery is easiest when the item is already stocked in a warehouse in your region. If it isn't, the package may have to travel farther and pass through more facilities. Very busy periods and the route your stop falls on also change the arrival time.

Did this help it click?

Sources

  1. Amazon, "How does your Amazon order get to your doorstep?" (2022)
  2. Amazon, D. Herrington, regionalizing the U.S. network (2023)
  3. Amazon, "Amazon sets new Prime delivery speed record in 2025" (2026)
  4. Amazon, AI demand forecasting and Wellspring mapping (2025)
  5. Amazon, D. Herrington, 2024 delivery updates (Same-Day sites)
  6. Amazon, inside a fulfillment center: photo tour (2023)
  7. Amazon Science, "Amazon's tiny robot drives do the heavy lifting" (2022)
  8. Wikipedia, Amazon Robotics (Kiva Systems)
  9. M. Mountz, "Kiva the Disrupter", Harvard Business Review (2012)
  10. Amazon, the robots inside fulfillment centers
  11. Amazon, Vision Assisted Sort Station at delivery stations (2025)
  12. Amazon, a driver's van tour (2023)
  13. Amazon, a delivery driver's day (2023)
  14. Amazon, VAPR in delivery vans (2024)
  15. Amazon, the Amazon Flex program (2025)
  16. Britannica, traveling salesman problem
  17. MIT Center for Transportation & Logistics, Amazon Last Mile Routing Research Challenge (2021)
  18. Maersk, Last-mile delivery (2025, citing Statista)
  19. Wikipedia, Last mile (transportation)
  20. AP News, Senate report on Amazon warehouse safety (Dec. 2024)
  21. KBIA, Senate interim report and Amazon's response (2024)
  22. NYC Comptroller, "Fast Shipping. Slow Justice." (2025)
  23. Fox Business, Amazon Now 30-minute delivery (2026)
  24. Amazon EU, Prime Day 2025 (Amazon Day delivery)