Airline Unit Economics

Reading Delta’s Capacity, Traffic & Cost Metrics

Learn how airline capacity, traffic, yield, load factor and unit costs fit together, using Delta’s FY2024 disclosures and clearly separated classroom sensitivities. Fiscal year ended December 31, 2024; 2023 comparison; USD millions unless labelled; airline unit metrics in cents. The operating-statistics table, revenue table and GAAP income were checked against the Form 10-K and January 10, 2025 results release. Published unit metrics are rounded; recalculations can differ slightly. The case is historical and omits route-level fares, demand curves and incremental costs.

What you will learn

• Define ASM, RPM, load factor, yield, PRASM, TRASM and CASM.
• Reproduce reported unit metrics from compatible numerators and denominators.
• Separate passenger revenue from total operating revenue and GAAP from adjusted measures.
• Explain how fuel price, consumption and capacity interact.
• Test a capacity decision without presenting a hypothetical as company history.

Syllabus

1. 1Start with capacity and traffic10 min
2. 2Connect passenger revenue, yield and PRASM10 min
3. 3Move from PRASM to total revenue per ASM10 min
4. 4Read unit cost beside unit revenue10 min
5. 5Separate fuel price, volume and efficiency10 min
6. 6Build a disciplined capacity memo10 min
7. CBusiness case: Delta: Add Capacity or Protect Unit Revenue?20 min