Southwest Airlines reported an operating expense of about billion U.S. dollars in 2025. The company's operating expenses increased incrementally from 2015 before declining in 2020. Operating expenses started increasing again in 2021 and outpaced pre-pandemic operating expenses in 2022, achieving an all-time high of the recorded period in 2025. Operating expenses include costs such as maintenance, luggage handling, airport fees, and marketing. 
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Southwest Airlines. (March 27, 2026). Southwest's operating expenses from FY 2011 to FY 2025 (in billion U.S. dollars) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved July 28, 2026, from /statistics/595517/operating-expenses-of-southwest-airlines/
Southwest Airlines. "Southwest's operating expenses from FY 2011 to FY 2025 (in billion U.S. dollars)." Chart. March 27, 2026. ÌÇÐÄÆƽâ°æ. Accessed July 28, 2026. /statistics/595517/operating-expenses-of-southwest-airlines/
Southwest Airlines. (2026). Southwest's operating expenses from FY 2011 to FY 2025 (in billion U.S. dollars). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: July 28, 2026. /statistics/595517/operating-expenses-of-southwest-airlines/
Southwest Airlines. "Southwest's Operating Expenses from Fy 2011 to Fy 2025 (in Billion U.S. Dollars)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 27 Mar 2026, /statistics/595517/operating-expenses-of-southwest-airlines/
Southwest Airlines, Southwest's operating expenses from FY 2011 to FY 2025 (in billion U.S. dollars) ÌÇÐÄÆƽâ°æ, /statistics/595517/operating-expenses-of-southwest-airlines/ (last visited July 28, 2026)
Southwest's operating expenses from FY 2011 to FY 2025 (in billion U.S. dollars) [Graph], Southwest Airlines, March 27, 2026. [Online]. Available: /statistics/595517/operating-expenses-of-southwest-airlines/
