Ontario, CA to San Luis Potosi, SLP freight

The Ontario to San Luis Potosi corridor runs southbound from the U.S. into Mexico and typically crosses at Laredo (World Trade Bridge).

Direction

Southbound (U.S. to Mexico)

Equipment on this lane

Open deck-led corridor

Carrier availability

Vetted carriers cover this corridor

Marketplace activity

Posted by brokers on the Cargado marketplace

<div class="lane-viz"><div class="lane-viz-mapwrap"><img class="lane-viz-map" src="https://cargado-lane-maps.pages.dev/ontario-ca-to-san-luis-potosi-slp.svg" alt="Ontario, CA to San Luis Potosi, SLP freight route map on Cargado" loading="lazy" width="1000" height="620"></div><div class="lane-viz-panel"><div class="lane-viz-title">Transit time</div><div class="tr"><div class="trrow"><div class="trl"><div class="trlabel">U.S. leg</div><div class="trroute">Ontario, CA <span class="arr">→</span> Laredo, TX</div></div><b>3 days</b></div><div class="trrow"><div class="trl"><div class="trlabel">Border crossing</div><div class="trroute">Laredo, TX <span class="arr">→</span> Nuevo Laredo, TAM</div></div><b>1–3 days</b></div><div class="trrow"><div class="trl"><div class="trlabel">Mexico leg</div><div class="trroute">Nuevo Laredo, TAM <span class="arr">→</span> San Luis Potosi, SLP</div></div><b>1 day</b></div><div class="trrow tot"><span>Total transit</span><b>5–7 days</b></div></div><a class="lane-cta" href="https://cargado.com/brokers/get-a-demo">Get a Rate <span class="arw">→</span></a><div class="lane-viz-fine">Estimated drive time by road, split at the border. Border dwell varies with documentation and crossing.</div></div></div>

This corridor connects the Ontario market (Ontario, Chino, Fontana, Rancho Cucamonga, Riverside, and San Bernardino) with the San Luis Potosi market (San Luis Potosí, Villa De Reyes, Pozos, Soledad De Graciano Sánchez, and Mexquitic De Carmona), running southbound from the U.S. Brokers post this corridor to the Cargado marketplace.

What ships from Ontario

Freight out of the Ontario market leans toward consumer goods, paper and packaging and food and beverage based on what brokers actually post there. You can read more on the freight types pages.

Equipment on this corridor

Open deck-led corridor. Browse equipment definitions in the glossary if a term is unfamiliar.

Where this lane picks up

Carriers on this lane pick up across the Ontario area: Ontario, Chino, Fontana, Rancho Cucamonga, Riverside, San Bernardino, Perris, and Jurupa Valley. Nearby markets that feed it include Los Angeles, Long Beach, Palm Springs, San Diego, Ridgecrest, and Tijuana.

Where this lane delivers

Carriers on this lane deliver across the San Luis Potosi area: San Luis Potosí, Villa De Reyes, Pozos, Soledad De Graciano Sánchez, Mexquitic De Carmona, and Laguna De San Vicente. It also reaches nearby markets like Leon, Aguascalientes, Irapuato, Matehuala, Zacatecas, and Santiago de Querétaro.

Border crossing

Most freight on this corridor crosses at Laredo (World Trade Bridge). Loads either run direct with a through-trailer or transload at the border, and the transfer step is priced into carrier bids. See transloading and the Laredo (World Trade Bridge) crossing page.

Brokers post corridors like this to Cargado's marketplace, where vetted Mexico and Canada carriers bid and every counterparty is vetted before the first load moves.

More lanes from these markets

Every lane guide for San Luis Potosi is listed on its lane hub, by direction and destination country.

The markets on this lane

Origin market

Ontario, CA

Ontario is an Inland Empire air cargo and warehouse market. Ontario International Airport grew its air cargo volume 5.3% in 2025, two Class I railroads run intermodal terminals nearby, and the city counts 133 million sq ft of industrial space. The Ports of Los Angeles and Long Beach handled a record 20.1 million TEUs in 2025.

Industries: Port-fed import warehousing and distribution, express and e-commerce air cargo, ocean container imports, rail intermodal, large-format fulfillment

Airport: Ontario International Airport, with express carrier operations on site. Cargo volume up 5.3% in 2025 (operating). Source
Intermodal or rail yard: Union Pacific Inland Empire Intermodal Terminal in Bloomington, a container-on-flatcar terminal. Open 24 hours, 7 days a week (operating). Source
Intermodal or rail yard: BNSF San Bernardino Intermodal Facility. Direct service to Chicago (operating). Source
Industrial park: The HUB, an airport-adjacent logistics park within Foreign-Trade Zone 50 (operating). Source
Seaport: Ports of Los Angeles and Long Beach. 20.1 million TEUs in 2025, a record (operating). Source
Industrial park: Foreign-Trade Zone 50 sites in Ontario. Granted by the Port of Long Beach in 1979, with designated magnet sites (operating). Source

Distribution: Warehouses of 200,000 to 930,000 sq ft in the airport area, plus express parcel operations at Ontario International Airport.

Destination market

San Luis Potosí, SLP

San Luis Potosí is a central Mexico market for vehicle assembly, auto parts and appliances. The state exported $6,893.2 million in the second quarter of 2026, mostly transport equipment, and ranked ninth among Mexican states. Nuevo Laredo is about 719 km north and is served by highway and by CPKC and Ferromex rail, and rail routes also reach Pacific and Gulf ports.

Industries: Vehicle assembly, auto parts, appliances, logistics and distribution

Vehicle assembly: Vehicle assembly plants in San Luis Potosí. 209,367 vehicles built January to July 2026, 9.1% of Mexico's total (operating). Source
Transport equipment: Transport equipment manufacturing, the state's largest export sector. Exports of $4,934.6 million in the second quarter of 2026, up 9%. Source
Appliance manufacturing: Appliance manufacturing, named the second export pillar after the auto sector. Source
Industrial park with rail: WTC Premium Industrial Park, with a customs office, a free trade zone and a CPKC intermodal terminal. Rail routes to Laredo, Lázaro Cárdenas, Veracruz and Altamira (operating). Source
Logistics park: WTC Industrial Park 3, a logistics and distribution park. 93 hectares (opened March 2026). Source
Bonded warehouse and customs: Strategic bonded warehouses (RFE) and customs sections in the state. 1 contiguous and 4 non-contiguous RFEs, 3 customs sections (operating). Source
Airport: Aeropuerto Internacional Ponciano Arriaga. 15,463.7 metric tons of cargo from January to August 2026, nearly all domestic, down 13.2% from 2025 (operating). Source

Distribution: Rail-served logistics and industrial parks, a strategic bonded warehouse and an airport with cargo operations.

Market profiles describe industries and facility types from public government, industry, port, railroad and industrial-park sources. They name no shippers, manufacturers, retailers or logistics companies.

Common questions about this lane

How do I find carriers for Ontario to San Luis Potosi?

On Cargado, brokers post the corridor and vetted carriers bid on it. Every carrier is verified before it can bid, which replaces cold-calling unknown carriers.

What equipment is available on the Ontario to San Luis Potosi corridor?

Postings here are mostly open-deck. If you need a type you do not see, post the load anyway. Carriers with matching equipment get notified automatically.

Does freight on this corridor transload at the border or run direct?

Both happen. Most freight crosses at Laredo (World Trade Bridge), where carriers either transfer the trailer to a cross-border drayage carrier or run direct with a through-trailer. The bid reflects the carrier's setup.

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