Australia is one of the hardest countries in the world to run a supply chain across. Our capital cities are separated by thousands of kilometres, much of the population sits on one coast, and regional and remote customers can be days away by road. Domestic air freight shrinks those distances to hours. Used carelessly, it is an expensive habit. Used strategically, it can cut inventory, open new markets and protect revenue when roads fail.
I have spent eighteen years in air cargo, from loading freighters at Sydney Airport to pricing domestic and international lanes for forwarders. This guide brings together what I have seen work for Australian businesses of every size. Each section links to a detailed article in our series, so you can go deeper where it matters most to you.
The guide at a glance
Start with the section that matches your most pressing question, or read the guide from top to bottom for the full picture.
Decide when to fly
Frame the decision and understand the payoff.
- Domestic Air Freight vs Road Freight: When Is Flying Worth the Extra Cost?Compare cost, transit time and inventory impact to decide when flying your goods pays off.
- Using Domestic Air Freight to Reduce Inventory and Warehousing CostsHow shorter lead times cut safety stock, free up cash and reduce warehouse space.
Control the cost
Understand pricing and cut chargeable weight.
- How Domestic Air Freight Rates Are CalculatedChargeable weight, cubic conversion, surcharges and minimum charges explained with worked examples.
- How to Package Goods for Domestic Air Freight to Cut Costs and Prevent DamageRight-size cartons, reduce cubic weight and get your freight through screening without delays.
Apply it to your market
How air freight works for specific business models and destinations.
- Domestic Air Freight for Ecommerce: Faster Delivery Without Multiple WarehousesServe customers nationwide from one fulfilment centre without blowing out shipping costs.
- Shipping Perishables by Domestic Air Freight: A Guide for Food and Pharma BusinessesTemperature control, packaging, dry ice rules and interstate biosecurity for time-sensitive goods.
- Reaching Regional and Remote Areas with Domestic Air FreightSupplying mine sites, regional towns and remote communities when roads are slow or cut.
Run it well
Pick the right partners and stay reliable when demand spikes.
- How to Choose a Domestic Air Freight Provider: 10 Questions to Ask Before You SignThe questions that reveal a provider's real network, costs, security set-up and peak-season plan.
- Planning Domestic Air Freight Around Peak Season: Capacity, Cut-Off Times and Contingency PlansHow to secure capacity and avoid delays through Christmas, EOFY and the new Sydney curfew rules.
How domestic air freight works in Australia
Domestic air freight is the movement of goods by aircraft between two points inside Australia. In practice, your freight usually travels in one of three ways.
- Dedicated freighters. Aircraft that carry only cargo, mostly flying overnight between capital cities. Qantas Freight's Airbus A321 freighters, which carry large volumes of parcel traffic for Australia Post and StarTrack, can each hold around 208 cubic metres of cargo.
- Passenger aircraft holds. Freight carried below the cabin on scheduled passenger flights. This "belly" capacity offers many daily departures and wide regional coverage, but space is limited, particularly on smaller aircraft.
- Charter. An aircraft booked for one customer's freight, used for urgent, oversized or remote consignments.
Most businesses do not deal with airlines directly. They buy air freight through express and parcel networks, freight forwarders or aggregators, which handle pick-up, security screening, the flight and delivery as one door-to-door service.
Why 2026 is a turning point for Sydney
Western Sydney International (Nancy-Bird Walton) Airport opened for freight in late July 2026 and runs without a curfew. From 1 November 2026, the overnight freight flights currently allowed during Sydney Kingsford Smith Airport's curfew are intended to end, with that traffic moving to Western Sydney. If you ship in or out of Sydney, expect changes to cut-offs, pick-up times and lodgement points. Our peak season planning guide explains what to ask your carriers.
Where air freight adds value in a supply chain
The mistake most businesses make is comparing a per-kilo air rate with a per-kilo road rate and stopping there. Air freight delivers value in four ways that do not appear on the freight invoice.
Speed that changes outcomes
Next-business-day delivery between capitals, compared with four to six business days by road to Perth or Darwin, can mean a sale made instead of lost or a machine running instead of idle. Our comparison of domestic air freight and road freight shows how to put a dollar value on each day saved.
Less inventory
Shorter lead times reduce the safety stock you need in each location. Because safety stock rises with the square root of lead time, cutting a five-day lead time to one day can reduce it by more than half. Our guide to reducing inventory and warehousing costs with air freight includes the formulas and a worked example.
Wider reach from fewer sites
Air freight lets a business serve the whole country from one or two warehouses instead of one in every capital. This is the model behind many successful Australian online retailers, explained in our article on domestic air freight for ecommerce.
Resilience
Floods, bushfires and wet season closures regularly cut Australian roads and rail lines. A business with an air freight option already set up can keep critical supply moving while competitors wait.
Air freight is not a transport cost to minimise. It is a tool to spend deliberately where time is worth more than the premium.
A six-step plan to optimise your supply chain with air freight
The businesses that get the most from domestic air freight follow a clear process rather than booking air whenever something is late.
- Map your freightPull three to six months of consignment data: lanes, weights, dimensions, service levels, costs and on-time performance. Identify where freight goes, what it costs and where delays happen.
- Segment products and customersGroup products by value, weight, urgency and handling needs, and customers by location and service expectation. High-value, light, time-critical products are your natural air candidates.
- Set mode rulesDecide which products, lanes and situations use air, and which use road. Write the rules down and build them into your ordering, warehouse or ecommerce systems, so the right mode is chosen automatically.
- Control the costReduce cubic weight through better packaging, consolidate consignments, pre-screen freight and negotiate on your real freight profile.
- Choose and manage partnersSelect providers whose networks fit your lanes and freight, agree service levels and review performance monthly.
- Plan for peaks and disruptionForecast demand, agree capacity ahead of busy periods, and keep a backup carrier and road fallback ready.
The rest of this guide covers each step in more detail.
Understanding and controlling the cost
Domestic air freight is charged on chargeable weight: the greater of a consignment's actual weight and its cubic weight. Cubic weight is the volume in cubic metres multiplied by a conversion factor, and the factor varies between carriers and services. Qantas Freight's published domestic example works out to 200 kg per cubic metre, many domestic express networks use 250 kg per cubic metre, and international air cargo commonly uses 167.
On top of the freight charge, expect fuel surcharges, security screening fees for unscreened freight, and extras for residential, after-hours, tail-lift or remote deliveries. Our guide to how domestic air freight rates are calculated walks through every component with worked examples.
A 60 × 40 × 40 cm carton weighing 12 kg has a volume of 0.096 m³. At 250 kg/m³ it is charged as 24 kg, double its real weight.
Repacked into a 50 × 40 × 35 cm carton, it is charged as 17.5 kg, a saving of about 27 per cent on every consignment.
That is why packaging is usually the fastest way to cut an air freight bill. Our article on packaging goods for domestic air freight shows how to right-size cartons, protect goods and avoid screening delays.
Applying air freight to your business model
Ecommerce and retail
Online retailers can hold stock in one fulfilment centre on the east coast and use air express for orders to Western Australia, the Northern Territory, Tasmania and north Queensland. The keys are shipping rules by product and postcode, honest delivery estimates at checkout, and keeping products with lithium batteries or aerosols on road services. Read more in our guide to ecommerce fulfilment with domestic air freight.
Food, flowers and pharmaceuticals
Perishables are one of the clearest cases for air. Success depends on packaging designed for the full door-to-door time, correct handling of dry ice as dangerous goods, pre-screening so insulated shippers are not opened at the terminal, and checking interstate biosecurity rules for Western Australia, Tasmania and South Australia. Our guide to shipping perishables by domestic air freight covers each of these.
Mining, agriculture and regional operations
For mine sites, farms and regional towns, air can be the difference between hours and days of downtime, and during the northern wet season it may be the only reliable option. Regional air freight has its own constraints, including small aircraft holds, weather-related offloads and limited flight days. See our guide to reaching regional and remote areas with domestic air freight.
Compliance essentials
Three sets of rules affect almost every business using domestic air freight.
- Aviation security. Air cargo must be examined by a Regulated Air Cargo Agent (RACA) or originate from a Known Consignor approved by the Department of Home Affairs before it is loaded. Freight lodged with a valid Consignment Security Declaration moves straight through, while unscreened freight may be screened at the terminal for a fee and extra time.
- Dangerous goods. Part 92 of the Civil Aviation Safety Regulations, administered by CASA, sets the rules for consigning dangerous goods by air, in line with the ICAO Technical Instructions. Many everyday products, such as aerosols, perfumes, lithium batteries, paints and dry ice, are regulated. Staff who prepare them need appropriate training, and some items cannot fly at all.
- Interstate biosecurity. Many fruits, vegetables and plant products need certification or treatment before they can enter Western Australia, Tasmania or South Australia.
Shippers must describe air cargo truthfully. Vague descriptions used to avoid dangerous goods rules are an offence and a genuine safety risk. When in doubt, ask your carrier or a dangerous goods specialist before you pack.
Choosing the right air freight partners
You can buy domestic air freight from airline cargo divisions, express and parcel networks, freight forwarders and aggregators. The right choice depends on your freight. Parcel networks suit small, regular consignments. Forwarders suit heavy, oversized, dangerous or temperature-controlled freight and complex regional deliveries. Specialist forwarders that focus on air freight domestic work, including same-day services, charters and oversized consignments, are worth comparing alongside the large express networks.
Whoever you choose, compare total cost on your real freight profile, not headline rates, and ask about conversion factors, surcharges, security screening, regional coverage and peak-season capacity. Our guide on how to choose a domestic air freight provider sets out ten questions that reveal how a provider will really perform.
Planning for peaks and disruption
Australia's main freight peak runs from late October to Christmas, driven by Click Frenzy, Black Friday, Cyber Monday and Christmas gifting. Smaller peaks come around EOFY in June, Easter, Valentine's Day and Mother's Day. During these periods, capacity tightens, cut-offs move earlier and surcharges can appear.
This year the Christmas peak coincides with the move of Sydney's overnight freight flights to Western Sydney International. Start forecasting in August or September, agree capacity and cut-offs by October, and keep a second carrier and a road fallback ready. Our guide to planning domestic air freight around peak season includes a full timeline.
Measuring what matters
You cannot optimise what you do not measure. Track a small set of metrics monthly and review them with your providers.
| Metric | What it tells you |
|---|---|
| On-time delivery rate by lane | Whether your real lead times match the promise |
| Cost per order or per unit shipped | Whether air freight spend is growing faster than sales |
| Cubic-to-dead weight ratio | How much you are paying for empty space |
| Share of volume moved by air | Whether your mode rules are being followed |
| Re-weigh and re-measure adjustments | Accuracy of your dispatch data |
| Damage and claims rate | Packaging and carrier handling quality |
| Inventory days of cover by location | Whether faster freight is actually reducing stock |
Common mistakes to avoid
- Flying everything. Air should carry the freight where speed has value, not all of it.
- Using air only as a panic button. Emergency expediting without rules is the most expensive way to buy air freight.
- Ignoring cubic weight. Oversized cartons quietly inflate every invoice.
- Not counting the inventory saving. Without it, air always looks too expensive.
- Choosing providers on rate alone. Conversion factors, surcharges and reliability matter as much.
- Leaving peak planning until December. Capacity goes to the businesses that plan early.
- Overlooking dangerous goods. Undeclared items risk rejection, fines and safety incidents.
Your getting-started checklist
- Export three to six months of freight data and calculate cost, chargeable weight and on-time performance by lane.
- Identify your top products by value and urgency, and the lanes where road is too slow.
- Run the cost-of-delay test on those products and lanes.
- Write mode rules and build them into your systems.
- Review your cartons and packaging for cubic efficiency.
- Check your security screening set-up and dangerous goods processes.
- Compare at least two providers on your real freight profile.
- Build a peak and disruption plan with a backup carrier.
- Set monthly metrics and review them with your providers.
Domestic air freight will never be the cheapest way to move goods around Australia. For the right products, lanes and moments, though, it is often the most profitable. Work through the articles in this guide, starting wherever your biggest opportunity lies, and build air freight into your supply chain on purpose rather than by accident.
Frequently asked questions
What is domestic air freight?
Domestic air freight is the transport of goods by aircraft between two locations within Australia. It includes overnight freighter services between capitals, freight carried in passenger aircraft holds, and charter flights, usually sold to businesses as a door-to-door service by express networks and forwarders.
Is domestic air freight worth the cost?
It is worth it when the value of getting goods there faster is greater than the extra freight cost. That is usually true for urgent, high-value, perishable or long-distance freight, and less often true for heavy, bulky or low-value goods.
How long does domestic air freight take in Australia?
Next business day between most capital cities is standard for air express services. Regional destinations usually take one to three business days, and remote communities with infrequent flights can take longer.
How is domestic air freight priced?
On chargeable weight, which is the greater of actual weight and cubic weight, multiplied by a rate per kilo for the lane and service. Fuel surcharges, security screening fees and delivery extras are added, plus GST.
What can't be sent by domestic air freight?
Many dangerous goods are forbidden or restricted, including some flammable liquids, gases, aerosols and lithium batteries. Others can fly only with specialist packaging, labels and declarations under CASR Part 92. Check with your carrier before shipping anything that might be regulated.
Sources and review. This guide draws on guidance from the Civil Aviation Safety Authority (CASA), the Cyber and Infrastructure Security Centre within the Department of Home Affairs, the Department of Infrastructure, IATA, Qantas Freight and other published carrier information. Rates, surcharges and rules change often, so confirm current requirements with your carrier before you ship.
Written and reviewed by
George Brown
Senior Air Freight Editor, Georgeiv.net
George has 18 years of air cargo experience, from ramp operations at Sydney Airport to managing airline allocations and pricing for forwarders across Australia and Asia-Pacific. He leads our domestic air freight coverage and checks every figure and rule before publication.