Freight Rates Are Climbing Into Peak Season: How to Protect Your Fulfillment Costs Before Q4 Hits

If freight already feels more expensive than it did last year, you’re not imagining it.

Dry van spot linehaul rates averaged $2.21 per mile in the week ending August 21, 2026, according to DAT Freight & Analytics. That was 35.6% higher year over year and about 23.8% above the nine-year seasonal average of $1.78 per mile.

$2.21

per mile

Week ending Aug 21, 2026

+35.6%

year over year

Compared with 2025

+23.8%

above seasonal average

Nine-year average: $1.78/mi

That matters because we’re heading into the period when ecommerce brands typically start moving more inventory ahead of holiday demand. More units, more replenishment, more transfers between warehouses, and more last-mile pressure can quickly turn a manageable freight increase into a noticeable hit to margins.

The good news? You still have time to do something about it.

One of the easiest mistakes is treating freight as a variable you simply have to accept.

Instead, look at your Q4 shipping lanes now.

Pull your last three to six months of freight data and identify your highest-volume routes. Then compare current carrier quotes against what you have historically paid. Look for lanes where costs have increased disproportionately and where you have enough volume to negotiate.

This is where Fulfillment and Logistics for Ecommerce becomes more than just an operational function. Your carrier strategy can directly influence product margins, inventory availability, and ultimately how aggressively you can compete during Q4.

And there’s an important reason to act early. DAT reported that dry van spot rates had already climbed above contract rates in June for the first time since February 2022, suggesting that tightening capacity was putting upward pressure on pricing.

Having one primary carrier can make operations simple. It can also create a problem when that carrier gets expensive or capacity-constrained.

For peak season, think about building a small carrier mix instead.

You don’t necessarily need five or ten providers. Even having a primary carrier plus one or two reliable alternatives can give you more flexibility when a lane suddenly becomes expensive or capacity disappears.

Test those alternatives before Q4. Give them a few lanes, measure transit times, damage rates, on-time performance, and actual landed costs.

That gives you options before you’re under pressure.

A Global Ecommerce Accelerator can also help sellers think about freight as part of the broader marketplace strategy rather than as an isolated logistics expense. When you sell across multiple marketplaces and regions, carrier diversification can become a practical way to protect margins as demand shifts.

A cheaper quote isn’t automatically a cheaper shipment.

When comparing carriers, look at the complete cost of moving inventory.

That means checking:

• Fuel surcharges
• Accessorial fees
• Residential or liftgate charges
• Detention and storage fees
• Minimum charges
• Delivery performance
• Damage and claims history
• Average transit time
• Appointment requirements

A carrier offering a lower base rate can become more expensive once accessorial charges and service issues are included.

This is where better Ecommerce Logistics Solutions can make a meaningful difference. The goal isn’t simply to find the lowest freight rate. It’s to understand the total cost of getting inventory where it needs to be, when it needs to be there.

Another way to protect Q4 fulfillment costs is to avoid unnecessary last-minute freight.

Look at your inventory positioning now.

If a high-volume SKU is sitting in one warehouse while most of its customers are concentrated in another region, moving some inventory earlier could make more sense than paying premium freight later.

The same logic applies to marketplace fulfillment. If you know which products are likely to accelerate during September, October, and November, use historical sales data and current demand signals to position inventory before capacity gets tighter.

This is especially important for brands operating across multiple channels. A Global Ecommerce Accelerator should be looking at inventory, marketplace demand, warehouse positioning, and transportation costs as connected pieces of the same Q4 plan.

You don’t need to predict exactly what freight rates will be in October.

You just need to know what you’ll do if they move higher.

Set a few internal thresholds. For example, decide which lanes would trigger a carrier review, when you would shift volume to a backup provider, and which products have enough margin to absorb higher transportation costs.

Also keep monitoring the market. DAT’s August 26 report showed dry van rates easing slightly from the summer peak, but they remained 35.6% above the same period last year. DAT’s forecast also projected a mid-September dry van spot rate around $2.24 per mile, still roughly $0.60 above the comparable rate a year earlier.

So this isn’t necessarily about predicting another spike. It’s about preparing for a freight market that is already starting from a much higher baseline.

That makes Fulfillment and Logistics for Ecommerce a Q4 margin strategy, not just a back-office concern.

And for brands scaling across marketplaces, Ecommerce Logistics Solutions can provide the flexibility needed to manage changing lanes, carriers, and fulfillment requirements without letting transportation costs quietly eat into every holiday sale.

Before Q4 demand really accelerates, make sure you have:

• Reviewed your top shipping lanes and current rates
• Compared primary and backup carrier pricing
• Identified your highest-cost accessorial fees
• Tested at least one alternative carrier where practical
• Checked inventory positioning by region
• Forecasted freight requirements for high-volume SKUs
• Set a trigger for switching carriers or reallocating volume
• Included transportation costs in your Q4 margin calculations

You don’t need to overhaul your entire logistics operation before peak season. But making these decisions while you still have time gives you something extremely valuable when Q4 arrives: options.