The WACC of Delta Air Lines Inc (DAL) is 7.2%.
| Range | Selected | |
| Cost of equity | 8.20% - 10.60% | 9.40% |
| Tax rate | 22.10% - 25.70% | 23.90% |
| Cost of debt | 5.40% - 5.40% | 5.40% |
| WACC | 6.6% - 7.9% | 7.2% |
| Category | Low | High |
| Long-term bond rate | 3.9% | 4.4% |
| Equity market risk premium | 4.6% | 5.6% |
| Adjusted beta | 0.94 | 1.01 |
| Additional risk adjustments | 0.0% | 0.5% |
| Cost of equity | 8.20% | 10.60% |
| Tax rate | 22.10% | 25.70% |
| Debt/Equity ratio | 0.68 | 0.68 |
| Cost of debt | 5.40% | 5.40% |
| After-tax WACC | 6.6% | 7.9% |
| Selected WACC | 7.2% | |