Why Delta Air Lines’ recent run puts valuation in the spotlight

Delta Air Lines stock has attracted a lot of attention recently, and if you are wondering whether the current share price offers value or stretches it, the numbers provide a useful starting point.

Over recent periods, the stock has recorded returns of 10.0% over 7 days, 13.2% over 30 days, 34.0% year to date, 88.9% over 1 year, 101.2% over 3 years, and 116.7% over 5 years. This naturally raises the question of how much of this performance is already reflected in the valuation.

These moves have been accompanied by ongoing newsflow around the broader airline industry, including operational updates, capacity changes, and shifting travel demand patterns. All of these can influence how investors think about Delta Air Lines’ long term cash generation. Together, these factors frame the context in which any valuation assessment should be viewed.

On Simply Wall St’s valuation checks, Delta Air Lines currently has a valuation score of 3 out of 6, which means it screens as undervalued on half of the measures applied. The rest of this article will walk through those valuation methods in more detail, then finish with a framework that can help you put all of these valuation signals into a clearer long term story for the stock.

Approach 1: Delta Air Lines Discounted Cash Flow (DCF) Analysis

A Discounted Cash Flow model estimates what Delta Air Lines stock could be worth today by projecting future cash flows and discounting them back to a present value using a required rate of return.

For Delta Air Lines, the model uses a 2 Stage Free Cash Flow to Equity approach. The latest twelve month Free Cash Flow is about $3.09b, which forms the starting point for the projections. Analyst inputs cover several years ahead, and Simply Wall St then extends these estimates further, with projected Free Cash Flow of $4.60b by 2029 and a full set of ten year projections expressed in today’s dollars.

Bringing all of those projected cash flows back to today gives an estimated intrinsic value of $105.66 per share. Compared with the current share price, this implies a 12.4% discount. This suggests that Delta Air Lines stock is trading below the model’s estimate of fair value based on these cash flow assumptions.

Result: UNDERVALUED

Our Discounted Cash Flow (DCF) analysis suggests Delta Air Lines is undervalued by 12.4%. Track this in your watchlist or portfolio, or discover 44 more high quality undervalued stocks.

Approach 2: Delta Air Lines Price vs Earnings

P/E is a useful way to look at a profitable company like Delta Air Lines because it links what you pay to the earnings the business is already generating. In general, higher expected earnings growth or lower perceived risk can justify a higher P/E ratio, while slower growth or higher risk usually points to a lower, more cautious multiple.

Delta Air Lines currently trades on a P/E of 13.51x. This is above the Airlines industry average P/E of 10.47x, but below the broader peer group average of 27.68x. Simply Wall St also provides a proprietary “Fair Ratio” of 23.74x, which is the P/E level it would expect for Delta Air Lines after considering factors such as earnings growth, profit margin, industry, market cap and company specific risks.

This Fair Ratio can be more informative than a plain comparison with industry or peer averages because it attempts to tailor the benchmark to Delta Air Lines own profile rather than treating all airlines or peers as identical. On this measure, the current P/E of 13.51x is below the Fair Ratio of 23.74x, which points to the stock trading at a lower multiple than this framework would suggest.

Result: UNDERVALUED

P/E ratios tell one story, but what if the real opportunity lies elsewhere? Start investing in legacies, not executives. Discover our 20 top founder-led companies.

Upgrade Your Decision Making: Choose your Delta Air Lines Narrative

Earlier it was mentioned that there is an even better way to understand what the current P/E and other valuation signals might mean for Delta Air Lines, and that starts with Narratives, which are simply your story about the company linked directly to a financial forecast and a fair value you can compare with the current share price.

On Simply Wall St’s Community page, Narratives let you set your own view on Delta Air Lines future revenue, earnings and margins, then turn that view into an implied fair value so you can more clearly see whether your story says the stock looks above or below what you think it is worth.

Because Narratives update when new information such as earnings, news or analyst targets comes in, you can quickly see how a more optimistic view that leans toward a fair value near US$101.56, or a more cautious stance around US$49 to US$64.40, compares with the current price. This can help you decide whether the stock looks closer to a buy, hold or sell for your own approach without relying only on one set of assumptions.

For Delta Air Lines however we will make it really easy for you with previews of two leading Delta Air Lines Narratives:

Fair value in this bullish narrative: US$101.56 per share

Implied discount to this fair value versus the last close of US$92.57: about 8.9% undervalued

Assumed annual revenue growth: 8.08%

• Focus on premium cabins, loyalty revenue and international routes is expected to support earnings resilience even if domestic main cabin demand is softer.
• A 10 year MRO agreement with UPS and efforts to strengthen the balance sheet are used to support a case for steadier cash flow and improved financial flexibility.
• Bullish analysts in this narrative anchor on a fair value of about US$101.56, which assumes higher earnings by 2029 and a P/E of 14.5x on those earnings.

Fair value in this more cautious narrative: US$81.81 per share

Implied premium to this fair value versus the last close of US$92.57: about 13.2% overvalued

Assumed annual revenue growth: 3.94%

• This narrative leans on the analyst consensus, which builds in more moderate revenue growth and a fair value closer to US$81.81.
• It highlights risks around softer main cabin demand, fuel cost swings, tariffs on aircraft and competition from low cost carriers that could pressure margins.
• On these assumptions, the current Delta Air Lines share price sits above the implied fair value, which frames the stock as reasonably fully priced on consensus numbers.

Do you think there's more to the story for Delta Air Lines? Head over to our Community to see what others are saying!

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.