Canada–US truck crossings are tracking roughly 3–5% below 2024 levels through early 2026, driven primarily by the slowdown on the Windsor–Detroit auto corridor. Agricultural lanes in the Prairies are the single biggest mover up, gaining an estimated 8–12% YoY as shippers front-load grain and oilseed shipments ahead of tariff escalation windows.
What is the 2026 cross-border freight volume?
Canada–US surface freight remains one of the highest-volume bilateral trade corridors in the world. Based on Statistics Canada's quarterly trucking commodity origin-destination surveys and US Bureau of Transportation Statistics (BTS) TransBorder Freight Data, trucks carried an estimated 140–150 million tonnes of goods across the border in the twelve months to Q1 2026, accounting for roughly 70% of all Canada–US trade by value that moves via surface transport.
In trip count terms, approximately 11–12 million southbound and northbound truck crossings are expected for the 2026 calendar year across all ports of entry — a figure that would represent a 3–5% decline from the 2024 peak of roughly 12.4 million annual crossings.
The dip is not uniform. The decline is concentrated at a handful of high-volume auto-industry ports, while agricultural and general-freight borders are holding steady or growing. Tariff policy introduced in 2025 and extended into 2026 is the single clearest driver of the compositional shift — not an overall collapse in trade, but a measurable rerouting and commodity-mix change.
Caveat: Volumes are 2026 estimates derived from Statistics Canada quarterly trucking commodity surveys and US BTS TransBorder Freight Data; verify with the linked sources for finalized figures.
Which lanes are biggest by volume?
Windsor–Detroit remains the dominant corridor by a substantial margin, accounting for an estimated one-quarter of all Canada–US truck crossings. The top ten ports of entry together handle more than 80% of total cross-border truck volume.
Table 1 — Top 10 cross-border truck lanes by 2026 estimated volume
| Rank | Lane | 2026 trips (est.) | YoY change |
|---|---|---|---|
| 1 | Windsor – Detroit (Ambassador Bridge + tunnel) | 2,900,000 | −6% |
| 2 | Sarnia – Port Huron (Blue Water Bridge) | 1,450,000 | −4% |
| 3 | Lacolle – Champlain (QC/NY) | 1,020,000 | +1% |
| 4 | Surrey – Blaine (Pacific Highway / Peace Arch) | 870,000 | +3% |
| 5 | Fort Erie – Buffalo (Peace Bridge) | 750,000 | −3% |
| 6 | Coutts – Sweet Grass (AB/MT) | 520,000 | +9% |
| 7 | Emerson – Pembina (MB/ND) | 480,000 | +7% |
| 8 | Niagara Falls – Lewiston (Queenston–Lewiston) | 430,000 | −2% |
| 9 | St. Stephen – Calais (NB/ME) | 190,000 | 0% |
| 10 | Stanstead – Derby Line (QC/VT) | 140,000 | +2% |
Caveat: Trip estimates are derived from Statistics Canada quarterly trucking commodity surveys and US BTS TransBorder Freight Data; verify with the linked sources for finalized figures.
The Ontario–Michigan corridor (rows 1, 2, and 5 combined) accounts for roughly 45% of all cross-border truck trips despite representing just three ports. That concentration means sector-specific slowdowns — particularly in automotive — have outsized effects on national totals.
Which lanes grew and which shrank?
The clearest loser in 2026 is the Windsor–Detroit corridor. The Ambassador Bridge and Detroit–Windsor Tunnel together handle the bulk of Canada's automotive parts trade, and the 25% US tariff on imported vehicles and parts that took effect in 2025 has hit this lane hard. Automaker production scheduling has become less predictable, and some Tier 1 suppliers have shifted sourcing toward US domestic content to avoid duties. The result is a lane tracking roughly 6% below 2024 trip counts with average loads running lighter on the southbound leg.
The Sarnia–Port Huron and Fort Erie–Buffalo lanes follow a similar pattern — both are Ontario industrial corridors carrying manufactured goods and auto components — and both are modestly negative year-over-year.
By contrast, Prairie crossings are the standout growers. Coutts–Sweet Grass and Emerson–Pembina are both up significantly, driven by accelerated grain, oilseed, and pulse export activity. Canadian agricultural exporters have been moving product faster than usual, front-loading US-destined shipments when tariff windows open and pulling back when they close. The net effect is episodic surge volume at Prairie crossings rather than steady growth — but the annual totals are still tracking meaningfully higher than 2024.
Surrey–Blaine (Pacific Highway), which handles BC forest products, consumer goods from the Port of Vancouver, and produce from the interior, is mildly positive. Pacific gateway volumes are benefiting from some commodity diversification as Ontario industrial trade softens.
For a deeper look at how tariff mechanics are reshaping carrier decisions on these lanes, see the complete US-Canada tariffs guide and earlier coverage of tariff impact.
How does volume break down by commodity?
The lane-level trends reflect sharp differences at the commodity level. Automotive remains the largest single category by weight and value, but its share is shrinking as tariff exposure suppresses cross-border parts flows.
Table 2 — Canada–US truck freight volume by commodity class, 2026 estimates
| Commodity | 2026 volume share | YoY change |
|---|---|---|
| Auto / auto parts | 26% | −8% |
| Agricultural (grain, oilseeds, produce, livestock) | 18% | +10% |
| Lumber / forest products | 11% | −2% |
| Manufactured goods (non-auto) | 19% | −1% |
| Energy / chemicals | 10% | +3% |
| General freight / consumer goods | 16% | +2% |
Caveat: Volume shares are estimates derived from Statistics Canada quarterly trucking commodity surveys and US BTS TransBorder Freight Data; verify with the linked sources for finalized figures.
Automotive is the biggest story. A category that ran roughly 28–30% of total cross-border trucking weight in 2023 and 2024 has contracted meaningfully. Some of this is structural — EV adoption is lengthening replacement cycles on parts — but the tariff effect is the dominant near-term driver.
Agriculture is the clearest beneficiary of the current environment, at least on a volume basis. Canola, wheat, soybeans, and pulse crops are moving south in high volumes when tariff windows allow. The category is up roughly 10% YoY. Rates, however, are volatile — cross-border tariff mechanics explains why shipper urgency creates brief rate spikes followed by dead stretches.
Lumber and forest products are essentially flat to slightly negative. US housing starts have been softer than forecast, limiting demand for Canadian dimensional lumber, while the long-standing US countervailing and anti-dumping duties on Canadian softwood lumber continue to create pricing friction.
Energy and chemicals (bulk liquids, petrochemicals, propane) are a quiet grower, benefiting from pipeline and energy infrastructure investment on both sides of the border.
What's the 2027 outlook?
Three factors will shape Canada–US cross-border truck volumes through 2027:
Gordie Howe International Bridge ramp-up. The bridge connecting Windsor and Detroit is expected to open to commercial traffic in late 2025 or early 2026 and reach full operational capacity through 2026–2027. When fully ramped, it adds a third truck-eligible crossing on Canada's busiest corridor, which should reduce dwell times and inspection backlogs at the Ambassador Bridge. That processing efficiency gain may modestly lift crossing counts even if underlying trade volumes remain flat.
Election cycle and tariff policy continuity. US tariff policy on Canada has tracked closely to executive-branch priorities. Any shift in US trade posture — whether from a policy reversal or negotiated sectoral exemptions — would have an outsized effect on automotive lane volumes. Carriers heavily exposed to Windsor–Detroit should model a range of scenarios rather than assuming current tariff structures persist through all of 2027.
Agricultural export cadence. Canada's 2026 Prairie harvest outlook (as of spring planting) is neutral to slightly positive. If crop yields hold and US-bound agricultural corridors stay open, Coutts and Emerson could see another above-average export season in late 2026 and Q1 2027, sustaining the current Prairie-lane growth trend.
For carriers pricing lanes today, real-time rate context matters as much as volume data. The lane rate lookup tools let you filter active loads by crossing point and pull rate-per-mile trends — useful for cross-border quoting when the market is moving fast.
Track cross-border lane rates with TruckerPro. Filter your load board by lane and crossing, view YoY rate benchmarks for the Windsor–Detroit, Lacolle, and Surrey–Blaine corridors, and build quotes anchored to current market data — not last year's numbers. Log in to your TruckerPro dashboard or start a free trial to access lane-rate analytics built for Canadian carriers.