10-K · latest 9
What Delta's 10-K filings say
- SEC EDGAR
10-K · FY2025
Filed · Fiscal year ends 12/31 · 12 signals
American Express partnership generated $8.2B in 2025, expected to grow to $10B
The co-brand credit card relationship with American Express is a critical high-margin revenue stream, accounting for $8.2 billion in 2025.
$8.2B
remuneration from American Express in 2025
American Express
Delta investing heavily in AI for operations, maintenance, and customer service
Delta is adopting AI models to optimize baggage routing, flight gating, and maintenance schedules to improve reliability and reduce costs.
Artificial Intelligence (AI)AI modelsAI-powered virtual assistant
The U.S. Department of Transportation ordered the termination of antitrust immunity for the Aeroméxico joint venture, a critical part of Delta's trans-border strategy.
Aeroméxico
Delta names American, United, Southwest, and low-cost carriers as key domestic competitors
Delta explicitly identifies its primary competitors, including traditional network carriers like American and United, national carriers like Southwest, and ultra-low-cost carriers like Spirit and Frontier.
American AirlinesUnited AirlinesAlaska AirlinesJetBlue Airways
Saved over $125M in 2025 through operational fuel efficiency initiatives
Delta's focus on operational efficiency resulted in saving 55 million gallons of jet fuel, translating to over $125 million in annual cost savings.
$125M
annual cost savings from fuel efficiency
1%
fuel burn savings target
Delta is deploying AI models for baggage routing, gate decisions, and maintenance optimization.
The company is actively using AI to improve core operational efficiency, reduce flight disruptions, and enhance reliability.
AIartificial intelligenceAmerican AirlinesUnited Airlines
Launched beta of "Delta Concierge," an AI-powered virtual assistant for customer support.
Delta is investing in customer-facing AI to deliver real-time, personalized travel support through its mobile app.
AIartificial intelligencevirtual assistant
Delta pursuing multi-year fleet refresh with new, fuel-efficient aircraft
Delta is actively replacing retiring aircraft with next-generation models to improve fuel efficiency, increase premium seating, and simplify its fleet.
AirbusBoeing
Delta expands free Wi-Fi across fleet, reaching 1,000th aircraft in Dec 2025
Delta is making major investments in its digital customer platform, highlighted by the expansion of fast, free Wi-Fi, which reached its 1,000th aircraft.
Wi-Fidigital platforms
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Source. Annual reports (Form 10-K) filed with the SEC. Every card links to the filing on EDGAR.
Method. Insights are extracted from the filing text and grouped by category. Numbers are quoted from the filing.
Data as of .