Ahmad Al Abid
16 mins read
14 mins read
Ahmad Al Abid specializes in designing courier and freight solutions for businesses scaling across Canada and the U.S. He applies a problem-solving approach to simplify complex logistics challenges, delivering clear, actionable strategies that improve operational efficiency and reduce costs.
TL;DR
For time-critical summer shipping in Canada, ground freight is usually the cheaper, more reliable default. But common summer challenges like wildfire closures, road construction, weather conditions, and heat-sensitive cargo can impact your default.
Air freight earns its high costs when a delivery deadline is genuinely non-negotiable, the cargo is high-value or heat-sensitive, or the ground route is disrupted.
| The common assumption is simple: Choose air freight when speed matters and ground freight when cost matters. But summer shipping decisions are rarely that straightforward. |
Come July, Canada experiences peak daytime temperatures in the range of 26 and 370C. It is typically the hottest and most humid month for Canada. With localized thunderstorms very common, shipments that typically get delivered within 2 days throughout the year suddenly face delays. No warnings, no prior notice to shippers. And if it is a time-sensitive product, the delays will invariably result in spoilage and monetary loss.
That's the story behind many summer freight failures in Canada. If you thought it was bad planning, you couldn’t be more wrong.
In this blog, we will break down how to address this challenge. We will explore two different freight modes to see when air freight justifies its cost, when ground freight still wins even in peak summer shipment season.
Most professional logistics and fulfillment service providers will say it is the speed. Factually speaking, the speed gap between air and ground is smaller than most shippers assume. For example, within a single province, a same-day or next-day ground delivery can outpace air freight if you consider:
But air delivery wins on long, cross-country, or cross-border routes because a vehicle on the ground takes multiple days of highway driving to reach the destination. An aircraft covers the same distance in hours.
So, the adjective "faster" is not a proprietary factor of either freight shipping mode. It totally depends on the distance, route condition, and last-mile delivery mode. Let’s look at a few genuine examples.
Expedited freight shipping decisions fall between these two extremes. And in summer, with temperature and humidity complicating shipping decisions further, the right decision depends on three critical factors:
Rather than treating speed as the deciding factor between air and ground freight, retailers should focus on the flexibility available before a shipment deadline becomes a business problem.
If you have some buffer, ground freight is a better option. Similarly, within shorter routes, ground transportation may even match or outperform air freight when total transit time is considered.
However, the calculation changes for long-distance routes where highway travel requires multiple days. A shipment moving across Canada under a fixed deadline may justify air freight because the available delivery window is much smaller.
| The key question is not “Which mode is faster?” but “Does the shipment have enough time for the available route and conditions?” |
Not every shipment requires the fastest possible transportation method. The value of speed depends on what is being shipped and what happens if delivery is delayed.
Heat-sensitive cargo such as pharmaceuticals, cosmetics, food products, chemicals, batteries, and electronics requires additional consideration because exposure during transportation can affect product quality on either mode. The specific mechanics of that risk, and what it costs to manage, are covered in detail further below.
| The decision should not be based only on whether air or ground is faster. It should be based on whether the chosen mode protects the value and condition of the shipment. |
Summer introduces challenges that can disrupt normal freight planning.
Ground freight can be affected by:
Air freight faces different challenges. Airport congestion, passenger travel demand, and wildfire smoke affecting flight operations can also create delays. The next section walks through exactly how each of these plays out on the ground and in the air.
| Vulnerability isn't fixed. It changes by corridor, by week, and by whether wildfire season is active. Treat it as something to check, not something to assume. |
Most eCommerce brands and shipping service providers treat air and ground freight as a stable trade-off. You pay a premium for air to get speed. Ground offers you an inexpensive alternative, but you accept longer transits. This trade-off holds for most of the year, until summer disrupts it. The three factors mentioned above play out very differently for air and ground freight, depending on the specific challenge in play, starting with construction.
The warmer months of July and August witness a lot of highway construction activity in Canada. This is the only season when pavement work and bridge replacement become physically possible.
In fact, the Highway 401 corridor, one of North America's busiest freight corridors carrying traffic through the Windsor-to-Toronto stretch and the Greater Toronto Area, runs an active, multi-year expansion and bridge-replacement program. With the program continuing well into 2026, nightly and full-lane closures are a frequent occurrence here. This eats directly into a driver’s available hours of service, pushing shippers and carriers towards costly detours. Eventually, it erodes ground freight’s normal cost advantage during peak summer.
But construction isn't the only seasonal factor that brings down the speed of summer shipping in Canada. Other factors that have a tangible and far-reaching impact include:
These are nothing new. They happen every year. What makes them unique is their unpredictability. So even a shipper with the right route optimization might still get caught.
A wildfire-closed highway is a routing problem. Reroute the truck, add hours, and the shipment still moves. But wildfire smoke is different. It creates visibility and air-quality problems that ground aircraft entirely. Smoke-related low visibility can trigger ground stops or flight delays at affected airports. And there is no alternative because the aircraft either flies or it doesn't.
In these situations, ground freight in these corridors stops until the closure lifts or opts for a detour. But if smoke reaches nearby flight paths, air freight serving the same region comes to a complete halt.
Either way, neither ground nor air freight can be treated as an automatic fallback for the other during active wildfire season.
Heat-sensitive cargo needs to arrive in the condition in which it was shipped. These include pharmaceuticals, cosmetics, food and perishables, chemicals, batteries, and electronics. They are all vulnerable to heat exposure during transit, and their risk exposure changes with the mode of transit.
Ground freight in a standard dry van can sit in direct sun during loading, unloading, or a highway delay, with cabin and trailer temperatures climbing well past ambient air temperature. This might spoil or alter the composition of heat-sensitive cargo. Reefer (temperature-controlled) trucking solves this, but it:
So, you cannot swap in at the last minute during an in-transit crunch.
Alternatively, air cargo has its own exposure risk. The tarmac wait time before loading, cargo hold conditions during flight, and ramp handling time on both ends can all expose sensitive goods to heat. Instances increase during ground handling delays at congested summer airports, increasing the risk of spoilage of heat-sensitive cargo.
| Air Freight vs. Ground Freight: Summer Snapshot | ||
| Factor | Ground Freight | Air Freight |
| Typically used for | Bulky, palletized cargo with non-urgent-to-moderate deadlines | High-value, urgent, or heat-sensitive cargo with strict deadlines |
| Dimensional flexibility | Not many limitations on size or shape | Strict limits applicable on weight and volumes |
| Summer challenges | Construction, wildfire closures, high volume tourist traffic | Airport congestion, smoke-related grounding, tarmac heat exposure |
| Remote/rural reach | Strong due to Canada's highway network | Limited only to routes served by a cargo airport |
When brands treat air shipping as the only option for expedited freight shipping, they miss out on the benefits of ground freight. In many instances, ground is objectively the better choice, not a cheaper or affordable compromise. Several structural advantages point to this regardless of season:
The deadline itself isn't always the deciding factor, but the margin on the deadline is. If a shipment has two to three days of buffer built in, ground freight on an uncongested route will usually beat air freight. That changes the moment one of three things happens: the buffer disappears, the specific route is under active disruption, or the cargo is heat-sensitive enough that a delay carries real risk.
Most eCommerce brands consider air freight a choice for urgency. When only one of those three conditions is present, ground freight, even rerouted, is usually still the better call. When two or three line up at once, air freight stops being a premium option and becomes the only option that actually meets the requirement.
A Mordor Intelligence report corroborates this. According to their report, air freight transport demand is forecast to continue growing faster than other freight modes, largely due to the transport of semiconductor equipment, fashion goods, and urgent medical supplies. This is exactly the category of cargo that the pattern above describes.
| If Your Shipment Is... | Recommended Mode |
| Delivering tomorrow with no flexibility | Air Freight |
| Large, palletized, non-urgent | Ground Freight |
| High-value medical equipment | Air Freight |
| Heavy industrial goods | Ground Freight |
| Temperature-sensitive with a tight deadline | Air Freight or temperature-controlled ground, depending on route and timing |
| Oversized freight | Ground Freight |
Before zeroing in on a freight mode, you must consider a few concrete factors. These include:
Any negative answer associated with the above factors becomes a red flag. And you should think twice about the pros and cons of your preferred summer shipment mode before the final selection. These checks help businesses move away from choosing freight modes based on assumptions and instead make decisions based on shipment risk and business impact.
| Want to know more about selecting the best shipping mode? Read our guide on choosing the best freight shipping option. |
Cost is often the first factor businesses consider when comparing air and ground freight. However, the lowest transportation cost does not always represent the lowest overall business cost.
The freight cost typically depends on the chargeable weight, fuel surcharges, and your time of booking or how far ahead you book. Air carriers bill on chargeable weight, whichever is greater between a shipment's actual weight and its volumetric weight. The industry-standard formula, calculates volumetric weight from a shipment's dimensions, which is why low-density cargo often gets billed well above what a scale would show. That's what makes air freight a poor fit for bulky, lightweight seasonal goods like patio furniture or outdoor gear and why ground freight's simpler weight-based pricing stays more predictable by comparison.
The real question isn't "which mode is cheaper on average?" It's "what does chargeable weight actually do to this specific shipment's price, and how much worse does it get when a route fails outright?" Mordor Intelligence has tracked extended weather-driven bridge closures pushing shippers into emergency air freight at 8 to 10 times the cost of the truck rate they were paying. But that's the ceiling, not the norm and most summer air-freight decisions cost far less.
Yes, air freight is expensive, but it is a savior for summer shipments with strict deadlines or when transporting heat-sensitive cargo. The best way to maximize air freight cost ROI is to weigh that premium against the actual cost of a delay, not against the sticker price alone.
Choosing between air and ground freight becomes challenging when conditions change quickly. A route that appears reliable during planning may face unexpected disruptions due to weather, seasonal congestion, or capacity limitations.
The challenge for businesses is not simply finding a shipping option. It is having enough visibility to compare available options before a disruption affects delivery.
eShipper’s platform helps businesses evaluate shipping options through a unified dashboard, allowing them to compare carrier rates and access different freight options from one place.
The platform provides access to:
By comparing options before a shipment becomes urgent, businesses can avoid starting the decision process from scratch when a disruption occurs. Instead, they can evaluate the available choices and select the freight mode that best matches their deadline, cargo requirements, and route conditions.
That said, a regional wildfire can still affect both modes at once. So how does eShipper resolve it? Honestly, it doesn't, not entirely. What multi-carrier access does is minimize the bottleneck. If one ground carrier's route is blocked, or one air carrier's capacity is grounded, the platform can check for a different carrier on the same mode. That's one provider's outage, not the shipper's only option.
eShipper's supply chain planning services go a step further. They help build, carrier, and route selection specifically for support during seasonal surges and supply chain disruptions.
Businesses can access carrier rates by using eShipper’s holistic shipping ecosystem and compare pricing across carriers from a single dashboard.
Summer shipping decisions in Canada are not about choosing the fastest transportation mode every time. They are about understanding when speed creates enough value to justify the additional cost.
For most summer shipments, ground freight remains the practical starting point. But businesses should avoid treating it as the only option. The best freight decision comes from running the shipment against the three-factor test above, not from defaulting to whichever mode feels safer under pressure.
So, don't let a summer deadline force a guess. Get an instant quote on both air and ground freight from eShipper and book the mode that actually fits your shipment in minutes.
While both are impacted, the way in which they are affected differs. For example, the ground freight risk is visible in advance because construction schedules and current wildfire zones are published in provincial systems. This means that a shipper can check the traffic status of a specific corridor before booking.
Air freight risk is difficult to assess in advance because it depends on same-day conditions, such as smoke plumes affecting flight paths or passenger volume straining ground handling at a given airport.
This depends on the kind of disruption that you are seeking to overcome. To ensure seamless operations during predictable seasonal pressures such as produce season, tourist traffic, and general summer demand, booking one to two weeks in advance will improve your chances of reducing your costs.
But no amount of advance booking can save shipments from sudden, unpredictable disruptions like an active wildfire closure. It is best to have a backup plan to address these instances.
Yes. Opting for a hybrid mode of shipment by splitting the modes of transport is actually a better way to address time-critical summer shipments. Many eCommerce brands successfully implement this strategy for orders containing a mix of time-sensitive and non-urgent items.
eShipper handles both from a single platform, letting shippers rate-shop air and ground side by side instead of managing separate carrier relationships for each mode. You can compare live rates through eShipper’s freight shipping page before deciding which mode fits a given shipment.
