Intermodal becoming a strategic choice rather than just a lower-cost alternative

Market overview

Intermodal demand continued to strengthen through September, with domestic volumes remaining well above historical averages. While earlier growth this year was primarily driven by shippers pursuing cost savings as diesel prices jumped sharply and quickly, recent demand patterns increasingly reflect tightening trucking conditions and the need for dependable long-haul capacity.

Intermodal is becoming a strategic capacity solution rather than simply a lower-cost alternative.

The latest volume data reflects this trend. U.S. intermodal traffic remained strong throughout August and September, supported by steady freight demand and growing mode conversion. Rising operating costs across trucking—including insurance, labor, equipment and maintenance expenses—continue to widen the number of lanes where intermodal can provide both cost and capacity advantages.

Beyond current market conditions, intermodal adoption continues to expand nationwide. With the trucking industry facing structural challenges in driver availability, diversifying modes of transportation remains an attractive option for many supply chains.

2026 peak season

Capacity dynamics

Peak-season shipping demand is now exposing where capacity is tightening in the intermodal network.

Union Pacific continues actively managing capacity in several key origin markets, prioritizing committed contractual freight and limiting new long-term commitments. Capacity remains particularly tight in California, Texas, Salt Lake City, and Chicago, where demand has remained elevated throughout the summer.

One of the more notable developments during September was tightening across Northeast corridors. As truckload carriers became more selective in freight accepted, more freight shifted into intermodal networks, particularly on lanes between 550 and 1,500 miles. In several East Coast markets, this has created chassis shortages and contributed to longer transit times.

Markets including New York/New Jersey; Baltimore; Harrisburg, Pennsylvania; Toledo, Ohio; in the Northeast as well as Chicago, Atlanta, Memphis, and Charlotte, North Carolina, are experiencing the greatest pressure on equipment.

Rail carriers continue repositioning equipment and expanding chassis availability, but spot-market freight in some areas may still encounter longer lead times during October.

Spot-market rate dynamics

The widening gap between truckload and intermodal pricing remains one of the most significant transportation trends of 2026. While truckload rates have increased sharply throughout the year, intermodal pricing has moved more gradually, improving intermodal's value proposition across many domestic freight corridors.

Despite some localized capacity challenges, intermodal continues to provide meaningful savings compared to truckload transportation, particularly as truckload rates climb as they usually do in the fourth quarter.

Upward pricing pressure is beginning to emerge in markets where intermodal capacity utilization is highest. If truckload capacity continues tightening, intermodal’s pricing advantage is expected to create additional demand through the remainder of the year.

Contract market outlook for 2027

Pricing is expected to be steady to higher heading into 2027, as demand growth continues to outpace available capacity in key portions of the network.

From West Coast origins

• Capacity remains highly constrained.
• Pricing continues to rise faster than most other regions.
• New contractual commitments are difficult to secure before 2027.

In central and eastern markets

• Moderate price increases are the most likely.
• Capacity conditions are increasingly determined by local equipment and driver availability.
• Container and chassis imbalances are becoming more apparent in select markets.

Looking ahead, rail carriers are expected to maintain pricing discipline as demand remains elevated and network utilization gradually increases.

Fuel cost impact

Fuel has become one of the most important transportation cost considerations heading into the fourth quarter and 2027.

Although rising diesel prices are increasing operating expenses across all transportation modes, they are having a particularly significant impact on truckload transportation.

Truckload fuel surcharges are typically calculated on a per-mile basis. Intermodal fuel surcharges are percentage-based and tied to linehaul pricing, creating a fundamentally different cost structure. Shippers that align fuel programs with intermodal pricing methodologies are often better positioned to preserve transportation savings as diesel prices remain elevated.

Key bid strategy considerations

To maximize transportation savings and improve supply chain performance, shippers are advised to

• Consider a blended truckload and intermodal strategy for flexibility.
• Identify shipping lanes where the additional transit time of intermodal is acceptable.
• Confirm freight compatibility with intermodal transportation, including blocking, bracing, and handling requirements.
• Evaluate total landed transportation cost rather than focusing exclusively on linehaul rates when comparing modes.

Intermodal service performance

Class I rail carriers continue delivering strong service. Metrics such as train speed, locomotive utilization, held-train frequency, and overall fluidity remain favorable by historical standards.

The greater challenge at the start of October is equipment positioning. Localized chassis and container shortages are becoming more common in faster-growing markets, particularly where intermodal demand has expanded rapidly during peak season. While overall service remains reliable, regional imbalances are creating isolated delays that can affect transit consistency.

As intermodal adoption expands, shippers should engage their transportation partners early and secure capacity well in advance of desired shipping dates. The intermodal network remains healthy overall, but the margin for disruption is becoming smaller in several key markets.

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