The WACC of Delta Air Lines Inc (DAL) is 7.2%.
| Range | Selected | |
| Cost of equity | 7.50% - 10.80% | 9.15% |
| Tax rate | 22.10% - 25.70% | 23.90% |
| Cost of debt | 5.10% - 5.40% | 5.25% |
| WACC | 6.1% - 8.2% | 7.2% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.79 | 1.06 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 7.50% | 10.80% |
| Tax rate | 22.10% | 25.70% |
| Debt/Equity ratio | 0.63 | 0.63 |
| Cost of debt | 5.10% | 5.40% |
| After-tax WACC | 6.1% | 8.2% |
| Selected WACC | 7.2% | |