Delta Air LinesMIL:1DAL -2.24%54 Cyclically Adjusted PS Ratio is 1.09 as of Jul. 12, 2026, which is 42% above its 10-year median of 0.77. GuruFocus rates MIL:1DAL with a GF Score™ of 54/100 and a GF Value™ of €46.73 (Significantly Overvalued). The stock has 8 warning signs investors should review. Among 756 Transportation companies, Delta Air Lines ranks worse than 56.35% on this metric.
The historical rank and industry rank for Delta Air Lines's Cyclically Adjusted PS Ratio or its related term are showing as below:
MIL:1DAL'
s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 0.35 Med: 0.77 Max: 1.22
Current: 1.08
During the past years, Delta Air Lines's highest Cyclically Adjusted PS Ratio was 1.22. The lowest was 0.35. And the median was 0.77.
MIL:1DAL's Cyclically Adjusted PS Ratio is ranked worse than 56.35% of 756
companies
in the Transportation industry
Industry Median: 0.895
vs MIL:1DAL: 1.08
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 PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.
Delta Air Lines's adjusted revenue per share data for the three months ended in Mar. 2026 was €21.033. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is €69.46 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Delta Air Lines (MIL:1DAL) Cyclically Adjusted PS Ratio Explanation
Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.
Delta Air Lines Cyclically Adjusted PS Ratio Related Terms
Delta Air Lines Cyclically Adjusted PS Ratio Historical Data
* Premium members only.
The historical data trend for Delta Air Lines's Cyclically Adjusted PS Ratio 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.
Delta Air Lines Cyclically Adjusted PS Ratio Chart
MIL:1DAL vs UAL, LUV, AAL: Cyclically Adjusted PS Ratio Comparison
For the Airlines subindustry, Delta Air Lines's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio 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.
Delta Air Lines Cyclically Adjusted PS Ratio vs Transportation Industry
For the Transportation industry and Industrials sector, Delta Air Lines's Cyclically Adjusted PS Ratio distribution charts can be found below:
* The bar in red indicates where Delta Air Lines's Cyclically Adjusted PS Ratio falls into.
Delta Air Lines Cyclically Adjusted PS Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.
Delta Air Lines's Cyclically Adjusted PS Ratio for today is calculated as
* 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.
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 PS Ratio of 1.09 mean?
Delta Air Lines (MIL:1DAL) has a Cyclically Adjusted PS Ratio of 1.09 as of Jul. 12, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Delta Air Lines and its competitors. This is 42% above median its historical median of 0.77. Over the past decade, Delta Air Lines' Cyclically Adjusted PS Ratio has ranged from 0.35 to 1.22. According to the industry distribution chart, Delta Air Lines ranks #426 out of 756 companies in the Transportation industry, placing it in the top 56.3%.
Is Delta Air Lines' Cyclically Adjusted PS Ratio too high?
Delta Air Lines' current Cyclically Adjusted PS Ratio of 1.09 is 42% above median its 10-year median of 0.77. Over the past 10 years, this metric has ranged from a low of 0.35 to a high of 1.22. The Transportation industry median Cyclically Adjusted PS Ratio is 0.90. Delta Air Lines' value of 1.09 is 21.8% above this industry median. Based on the distribution chart, Delta Air Lines ranks #426 out of 756 companies in the Transportation industry, which is below the industry midpoint. Overall, Delta Air Lines has a GF Score™ of 54/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Delta Air Lines' Cyclically Adjusted PS Ratio compare to UAL and LUV?
According to the Transportation industry distribution chart, Delta Air Lines ranks #426 out of 756 companies for Cyclically Adjusted PS Ratio. This places Delta Air Lines in the lower half of its industry. The industry median Cyclically Adjusted PS Ratio is 0.90. Delta Air Lines' value of 1.09 is 21.8% above this benchmark. Historically, Delta Air Lines' own Cyclically Adjusted PS Ratio has ranged from 0.35 to 1.22 over the past decade. While the company's 10-year median is 0.77 vs. the industry median of 0.90, Delta Air Lines has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted PS Ratio for a Transportation company?
The median Cyclically Adjusted PS Ratio among Transportation companies is 0.90, based on 756 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Delta Air Lines's current Cyclically Adjusted PS Ratio of 1.09 is 21.8% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on Delta Air Lines and its competitors. For the Transportation industry, the median Cyclically Adjusted PS Ratio is 0.90 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Delta Air Lines's current Cyclically Adjusted PS Ratio is 1.09, which is 42% above median its own 10-year median of 0.77. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Delta Air Lines stock overvalued right now?
Based on GuruFocus' analysis, Delta Air Lines (MIL:1DAL) is currently considered Significantly Overvalued. The stock's GF Value™ is €46.73, compared to a current price of €76.03 — trading 62.7% above its estimated fair value. The current Cyclically Adjusted PS Ratio is 1.09, which is 42% above median its 10-year median of 0.77 and 21.8% above the Transportation industry median of 0.90. Delta Air Lines' overall GF Score™ is 54/100 with 8 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For Delta Air Lines (MIL:1DAL), the current Cyclically Adjusted PS Ratio is 1.09 as of Jul. 12, 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 Delta Air Lines (MIL:1DAL) Overvalued in 2026?
Based on GuruFocus' analysis, Delta Air Lines stock appears to be overvalued.
The current stock price of €76.03 is trading 62.7% above its estimated GF Value™ of €46.73.
GuruFocus considers Delta Air Lines to be Significantly Overvalued.
Key valuation signals for MIL:1DAL:
Cyclically Adjusted PS Ratio: 1.09 (42% above median its 10-year median of 0.77)
GF Value™: €46.73 vs. price of €76.03 (62.7% above fair value)
Industry Position: 21.8% above the Transportation median (#426 of 756)
No single metric tells the full story. See the MIL:1DAL stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Atlanta-based Delta Air Lines is one of the world's largest airlines, with a network of over 300 destinations in more than 50 countries. Delta operates a hub-and-spoke network, where it gathers and distributes passengers across the globe through its biggest hubs in Atlanta, New York, Salt Lake City, Detroit, Seattle, and Minneapolis-St. Paul. Delta has historically earned most of its international revenue and profits from flying passengers over the Atlantic Ocean.
54GF Score
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