Air cargo occupies a specific niche in Ontario's supply chains. It costs considerably more per kilogram than road, rail or ocean transport, but it delivers speed that nothing else can match. For pharmaceuticals with short shelf lives, aerospace components grounding an aircraft, perishable food, high-value electronics and urgent production parts, the economics work clearly in its favour. Ontario's air cargo infrastructure is the largest in Canada, centred on Toronto Pearson with important secondary operations elsewhere in the province.
Ontario Air Cargo Infrastructure
Toronto Pearson International Airport handles the majority of Canadian air freight, supported by dedicated cargo facilities, customs bonded warehouses and the density of freight forwarders in the surrounding Mississauga and Brampton area. John C. Munro Hamilton International Airport has become the country's most important dedicated cargo airport, operating around the clock without the night restrictions that constrain other facilities, which makes it central to overnight parcel networks. Ottawa, London, Windsor, Thunder Bay and Timmins provide regional capability, and northern airports depend on air cargo for basic supply.
Air Canada Cargo
Air Canada Cargo carries freight in the holds of passenger aircraft and operates dedicated freighters on selected routes. Its advantage is network breadth, reaching destinations across Europe, Asia, Latin America and the United States directly from Toronto. It offers specialised handling for pharmaceuticals with temperature control, live animals, valuables and perishables, all of which require certification and dedicated facilities.
Cargojet
Cargojet is Canada's dominant domestic overnight air cargo operator, running a hub-and-spoke network centred on Hamilton. Its overnight network connects major Canadian cities and underpins the express parcel commitments of several large logistics companies. It also operates international charter and scheduled services. For any business promising next-morning delivery across Canada, Cargojet capacity is almost certainly involved somewhere in the chain.
FedEx Express
FedEx operates significant Ontario air cargo activity, connecting the province to its global express network. Its integrated model, combining aircraft, sorting facilities and delivery vehicles under one operator, produces consistent transit times and detailed tracking, which is why it is heavily used for urgent international shipments.
UPS Airlines
UPS runs its own airline and serves Ontario through facilities linked to its global hubs. Like FedEx, it offers integrated door-to-door service with customs brokerage included, which reduces the number of parties involved in an international shipment and therefore the number of places a problem can arise.
DHL Aviation
DHL's air network serves Ontario with particular strength on transatlantic and Asian lanes. Its express international service is widely used by manufacturers shipping urgent components and by businesses moving high-value samples and documents where transit certainty is the priority.
Morningstar Air Express
Morningstar Air Express operates freighter services within Canada, providing capacity for express networks and specialised cargo. Operators in this category are often invisible to end customers but supply the lift that makes published delivery commitments possible.
Kelowna Flightcraft and Charter Operators
Charter cargo operators provide aircraft for specific one-off requirements: an urgent production part, oversized equipment, disaster response or a project shipment that cannot wait for scheduled capacity. Charter is expensive but it is sometimes the only option, and Ontario brokers can typically arrange lift within hours for critical situations.
Northern Ontario Air Carriers
Carriers serving northern Ontario perform an essential function, delivering food, fuel, medical supplies, construction materials and mail to communities without road access. Operators in this category fly ruggedised aircraft into gravel and ice strips, and their reliability directly affects community wellbeing. Seasonal factors are significant, with winter road availability reducing air demand for heavy goods during a limited window each year.
Freight Forwarders and Air Cargo Agents
Most shippers do not book directly with airlines. Air freight forwarders in the Mississauga and Brampton area consolidate shipments, negotiate airline rates, prepare air waybills, handle dangerous goods documentation and manage customs. A competent forwarder can substantially reduce landed cost and, more importantly, prevent the documentation errors that strand shipments in bonded warehouses.
Ground Handling and Bonded Warehousing
Air cargo depends on ground handling agents who load, unload, screen and store freight, and on bonded warehouses where goods sit before customs release. Service quality here determines whether a fast flight translates into fast delivery. Shippers moving temperature-sensitive goods should confirm that handling partners maintain cold chain integrity on the apron and in storage, not only in the aircraft.
When Air Freight Makes Sense
Use air when the value of time exceeds the cost premium. Typical justifications include production line stoppages, perishable goods with limited shelf life, seasonal retail products that lose value after a date, high-value items where inventory carrying cost is significant, and regulatory or contractual deadlines. A useful test is to calculate the daily cost of the goods not arriving. If that exceeds the difference between air and surface freight, air is the rational choice.
Regulatory and Security Requirements
Air cargo is subject to strict security screening and dangerous goods regulations. Lithium batteries, aerosols, chemicals and many everyday products have specific packaging, labelling and documentation requirements, and errors can result in refused shipments or penalties. Shippers with regular dangerous goods volume should invest in certified staff training rather than relying entirely on their forwarder.
Sector Outlook
Several trends are visible in Ontario. E-commerce continues to drive domestic overnight volume, benefiting Hamilton-based operations. Pharmaceutical and life sciences shipments are growing, increasing demand for certified temperature-controlled handling. Sustainable aviation fuel adoption is beginning, though volumes remain small. And capacity remains sensitive to passenger aircraft schedules, since much international freight travels in passenger holds. For shippers, the practical advice is to build relationships with a capable forwarder, plan documentation carefully and reserve air freight for the shipments where speed genuinely earns its cost.