The largest passenger airline in the United States in 2025 was Delta Air Lines, with an operating revenue of approximately **** billion U.S. dollars. The company was closely followed by United Air Lines, with a revenue of nearly ** billion U.S. dollars. Â
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Bureau of Transportation Statistics. (May 15, 2026). Operating revenue of selected airline groups in the United States in 2025 (in million U.S. dollars) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 31, 2026, from /statistics/750834/most-profitable-airlines-in-united-states/
Bureau of Transportation Statistics. "Operating revenue of selected airline groups in the United States in 2025 (in million U.S. dollars)." Chart. May 15, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 31, 2026. /statistics/750834/most-profitable-airlines-in-united-states/
Bureau of Transportation Statistics. (2026). Operating revenue of selected airline groups in the United States in 2025 (in million U.S. dollars). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 31, 2026. /statistics/750834/most-profitable-airlines-in-united-states/
Bureau of Transportation Statistics. "Operating Revenue of Selected Airline Groups in The United States in 2025 (in Million U.S. Dollars)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 15 May 2026, /statistics/750834/most-profitable-airlines-in-united-states/
Bureau of Transportation Statistics, Operating revenue of selected airline groups in the United States in 2025 (in million U.S. dollars) ÌÇÐÄÆƽâ°æ, /statistics/750834/most-profitable-airlines-in-united-states/ (last visited July 31, 2026)
Operating revenue of selected airline groups in the United States in 2025 (in million U.S. dollars) [Graph], Bureau of Transportation Statistics, May 15, 2026. [Online]. Available: /statistics/750834/most-profitable-airlines-in-united-states/
