What impacted Delta's cargo revenue in the past year?

Delta Air Lines' cargo revenue was impacted by several factors in the past year: 1. **Global Market Conditions**: The overall global market conditions for airfreight had an impact on Delta's cargo revenue. The rate of decline in cargo revenue at Delta Air Lines slowed further in the first quarter, reflecting an overall improvement in global market conditions for airfreight. 2. **Prolonged International Freight Recession**: Delta wasn't alone in experiencing negative effects of a prolonged international freight recession. Most hybrid and all-cargo airlines saw revenues drop between 25% and 50%, or more, last year. In summary, Delta's cargo revenue was impacted by global market conditions and prolonged international freight recession.