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Interline Rate Agreements | Freight-Academy™

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GlossaryEN1 min readUpdated: Jun 25, 2026

Interline Rate Agreements

When a shipment moves across multiple carrier networks, questions arise about who handles which leg and at what price – interline rate agreements provide the contractual answer.

Quick Answer

When a shipment moves across multiple carrier networks, questions arise about who handles which leg and at what price – interline rate agreements provide the contractual answer.

They are formal arrangements between two or more carriers that establish joint rates, carriage terms, and liability provisions for shipments handled across their combined networks.

A typical example is a through-rate negotiated between an air cargo carrier and a shipping line, offering the shipper a single binding price for the entire journey.

Last updated: 25 June 2026Published: 19 June 2025

Source: https://en.wikipedia.org/wiki/Interline_agreement

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Interline Rate Agreements

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Definition & Explanation

When a shipment moves across multiple carrier networks, questions arise about who handles which leg and at what price – interline rate agreements provide the contractual answer. They are formal arrangements between two or more carriers that establish joint rates, carriage terms, and liability provisions for shipments handled across their combined networks. A typical example is a through-rate negotiated between an air cargo carrier and a shipping line, offering the shipper a single binding price for the entire journey. The agreements also cover price escalation clauses, claims procedures, and insurance responsibilities. They form the legal foundation for subsequent interline settlement, which executes the actual financial reconciliation between the carriers involved.

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Recommended format: Source: Freight Academy – Interline Rate Agreements (https://www.freight-academy.com/en/glossary/interline-rate-agreements), accessed 2026-09-27
APA style: Freight Academy Editorial Team. (2025). Interline Rate Agreements. Freight Academy. https://www.freight-academy.com/en/glossary/interline-rate-agreements
BibTeX: @misc{interlinerateagreements2025, title = {Interline Rate Agreements}, author = {{Freight Academy Editorial Team}}, year = {2025}, url = {https://www.freight-academy.com/en/glossary/interline-rate-agreements}, note = {Freight Academy, accessed 2026-09-27} }

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