Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.
Southwest Airlines Co's adjusted free cash flow per share for the three months ended in Mar. 2026 was $1.567. Add all the adjusted free cash flow per share for the past 10 years together and divide the count will get our Cyclically Adjusted FCF per Share, which is $1.56 for the trailing ten years ended in Mar. 2026.
During the past 12 months, Southwest Airlines Co's average Cyclically Adjusted FCF Growth Rate was -16.00% per year.
During the past 3 years, the average Cyclically Adjusted FCF Growth Rate was -13.40% per year.
During the past 5 years, the average Cyclically Adjusted FCF Growth Rate was -5.70% per year.
During the past 10 years, the average Cyclically Adjusted FCF Growth Rate was 9.20% per year.
Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted FCF Growth Rate using Cyclically Adjusted FCF per Share data.
During the past 13 years, the highest 3-Year average Cyclically Adjusted FCF Growth Rate of Southwest Airlines Co was 58.70% per year. The lowest was -15.10% per year. And the median was 20.95% per year.
Southwest Airlines Co (LTS:0L8F) Cyclically Adjusted FCF per Share Explanation
If a company grows much fast than inflation, Cyclically Adjusted FCF per Share may underestimate the company's free cash flow. Cyclically Adjusted Price-to-FCF can seem to be too high even the actual Price-to-Free-Cash-Flow is low.
For the Cyclically Adjusted Price-to-FCF, the free cash flow per share of the past 10 years are inflation-adjusted and averaged. The result is used for P/FCF calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted Price-to-FCF is also called CAPFCF Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted free cash flow per share of a company over the past 10 years.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
During the past 13 years, the highestCyclically Adjusted Price-to-FCF of Southwest Airlines Co was 65.07. The lowest was 9.43. And the median was 20.70.
Be Aware
Cyclically Adjusted Price-to-FCF works better for cyclical companies. It gives you a better idea on the company's real free cash flow value.
Southwest Airlines Co Cyclically Adjusted FCF per Share Related Terms
Southwest Airlines Co Cyclically Adjusted FCF per Share Historical Data
* Premium members only.
The historical data trend for Southwest Airlines Co's Cyclically Adjusted FCF per Share can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Southwest Airlines Co Cyclically Adjusted FCF per Share Chart
LTS:0L8F vs AAL, UAL, CPA: Cyclically Adjusted FCF per Share Comparison
For the Airlines subindustry, Southwest Airlines Co's Cyclically Adjusted Price-to-FCF, along with its competitors' market caps and Cyclically Adjusted Price-to-FCF data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Southwest Airlines Co Cyclically Adjusted Price-to-FCF vs Transportation Industry
For the Transportation industry and Industrials sector, Southwest Airlines Co's Cyclically Adjusted Price-to-FCF distribution charts can be found below:
* The bar in red indicates where Southwest Airlines Co's Cyclically Adjusted Price-to-FCF falls into.
Southwest Airlines Co Cyclically Adjusted FCF per Share Calculation
E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted FCF per Share and the Cyclically Adjusted Price-to-FCF. The Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years.
What is Cyclically Adjusted FCF per Share? How do we calculate Cyclically Adjusted FCF per Share?
Cyclically Adjusted FCF per Share is the average of the inflation adjusted Free Cash Flow per Share of a company over the past 10 years. Let's use an example to explain.
If we want to calculate the Cyclically Adjusted FCF per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the free cash flow per share from 2001 through 2010.
We adjusted the 2001 free cash flow per share data with the total inflation from 2001 through 2010 to the equivalent free cash flow in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's free cash flow is $1 a share in 2001, then the 2001's equivalent free cash flow in 2010 is $1.4 a share. If Wal-Mart's free cash flow is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 free cash flow in 2010 is $1.35. So on and so forth, you get the equivalent free cash flow per share of past 10 years. Then you add them together and divided the sum by the count to get Cyclically Adjusted FCF per Share.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted FCF per Share of $1.56 mean?
Southwest Airlines Co (LTS:0L8F) has a Cyclically Adjusted FCF per Share of $1.56 as of Mar. 2026. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Southwest Airlines Co and its competitors.
Is Southwest Airlines Co's Cyclically Adjusted FCF per Share too high?
Southwest Airlines Co's current Cyclically Adjusted FCF per Share is $1.56. Overall, Southwest Airlines Co has a GF Score™ of 86/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Southwest Airlines Co's Cyclically Adjusted FCF per Share compare to AAL and UAL?
Southwest Airlines Co's Cyclically Adjusted FCF per Share of $1.56 can be compared against companies in the Transportation industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted FCF per Share for a Transportation company?
A good Cyclically Adjusted FCF per Share depends on the Transportation industry context. However, Cyclically Adjusted FCF per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted FCF per Share mean?
A high Cyclically Adjusted FCF per Share can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted FCF per Share represents the company's inflation-adjusted FCF per share over a 10-year period. View historical data on Southwest Airlines Co and its competitors. Southwest Airlines Co's current Cyclically Adjusted FCF per Share is $1.56. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Southwest Airlines Co stock overvalued right now?
Based on GuruFocus' analysis, Southwest Airlines Co (LTS:0L8F) is currently considered Modestly Overvalued. The stock's GF Value™ is $41.81, compared to a current price of $48.58 — trading 16.2% above its estimated fair value. The current Cyclically Adjusted FCF per Share is $1.56. Southwest Airlines Co's overall GF Score™ is 86/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted FCF per Share calculated?
Cyclically Adjusted FCF per Share is calculated from a company's financial statements. For Southwest Airlines Co (LTS:0L8F), the current Cyclically Adjusted FCF per Share is $1.56 as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Southwest Airlines Co (LTS:0L8F) Overvalued in 2026?
Based on GuruFocus' analysis, Southwest Airlines Co stock appears to be overvalued.
The current stock price of $48.58 is trading 16.2% above its estimated GF Value™ of $41.81.
GuruFocus considers Southwest Airlines Co to be Modestly Overvalued.
Key valuation signals for LTS:0L8F:
Cyclically Adjusted FCF per Share: $1.56
GF Value™: $41.81 vs. price of $48.58 (16.2% above fair value)
No single metric tells the full story. See the LTS:0L8F stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Southwest Airlines is the largest domestic air carrier in the United States by passengers boarded. Southwest operates nearly 800 aircraft in an all-Boeing 737 fleet. Despite offering some longer routes and a few perks for business travelers, the airline predominantly specializes in short-haul, leisure flights operated with a simple cabin configuration in a point-to-point network. In early 2026, Southwest modified its cabins to offer some rows with extra legroom, its ticketing process and merchandising to offer assigned seats, and more fare categories to include a basic economy class that appears for the first time in travel aggregators' search results and more directly competes with other airlines' offerings.
86GF Score
Get the complete analysis for LTS:0L8F
Cyclically Adjusted FCF per Share is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
LTS:0L8F has been successfully added to your 
