evidence: - Revenue diversification driving Delta's differentiation: For the quarter, diversified revenue streams, including Loyalty, Premium, Cargo and MRO comprised 57 percent of total revenues. Premium revenue grew 10 percent versus the March quarter 2023, continuing to outperform Main Cabin. Loyalty revenue was up 12 percent, driven by continued co-brand spend growth and increasing premium card mix. Remuneration from American Express for the March quarter was $1.7 billion, approximately 5 percent higher than the March quarter 2023.