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A close-up of a Delta airplane’s red and blue tail section inside a hangar. Overhead lights and structural beams of the hangar ceiling are clearly visible above the aircraft.
A close-up of a Delta airplane’s red and blue tail section inside a hangar. Overhead lights and structural beams of the hangar ceiling are clearly visible above the aircraft.

About This Report

This report provides information on issues of interest to many of our key stakeholders, including Delta’s environmental, social and governance performance, from January 1 to December 31, 2025. Progress on long-term strategies and initiatives during the first quarter of 2026 is also included and noted as such, where relevant. All references to “Delta,” “we,” “us” and “ours” are references to Delta Air Lines, Inc.

This report aligns with the reporting standards of the Sustainability Accounting Standards Board (SASB) and the Task Force on Climate-related Financial Disclosures (TCFD). It also covers additional topics we have identified as most relevant to our business, investors and stakeholders, using a range of formal and informal engagement methods, including materiality analysis, ongoing dialogue with key stakeholders and our Enterprise Risk Management process.

We continue to refine our approach in alignment with evolving best practices, voluntary guidance and the regulatory landscape. In 2025, Delta updated its materiality assessment based on business and policy trends, dialogues with internal stakeholders, employee surveys, proxy information and data on potential financial impacts. The results of this assessment informed the selection, prioritization, and organization of the topics addressed in this Delta Difference Report.

The materiality assessment process we used relies on a different standard from that used in our financial disclosures and is distinct from the concept of materiality as defined under the rules and regulations of the U.S. Securities and Exchange Commission (SEC) and related case law. As a result, the information described as material for the purposes of this report, such as our strategies and milestones, may not be material for other purposes, including in connection with our SEC filings.

Our report reflects information regarding our airline operations, which is our core business. Monroe Energy, LLC (Monroe) is a wholly owned subsidiary of ours that operates the Trainer Refinery and related pipelines and terminal assets that supply jet fuel to our airline operations in the Northeastern United States. Monroe is operated separately, and, as such, information about Monroe is not reflected in this report. Consistent with the GHG Protocol, this report includes greenhouse gas (GHG) emissions from business activities under Delta’s operational control.1 Monroe files GHG emissions reports annually with the U.S. Environmental Protection Agency, which are publicly available and can be viewed here. We discuss Delta’s climate lobbying activities, including those by or on behalf of Monroe, in the Environment section of this report.

  1. The GHG Protocol establishes comprehensive global standardized frameworks to measure and manage greenhouse gas (GHG) emissions from private and public-sector operations, value chains and mitigation actions.(a)