Global airline Delta Air Lines (NYSE: DAL) reported revenue ahead of Wall Street’s expectations in Q2 CY2026, with sales up 18.7% year on year to $19.76 billion. Its GAAP profit of $2.44 per share was 64.7% above analysts’ consensus estimates.

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Company Overview

One of the ‘Big Four’ airlines in the US, Delta Air Lines (NYSE: DAL) is a major global air carrier that serves both business and leisure travelers through its domestic and international flights.

Revenue Growth

Reviewing a company’s long-term sales performance reveals insights into its quality. Any business can put up a good quarter or two, but many enduring ones grow for years. Over the last five years, Delta grew its sales at a 30.1% annual rate. Though this growth is acceptable on an absolute basis, we need to see more than just topline growth for the consumer discretionary sector, which can display significant earnings volatility. This means our bar for the sector is particularly high, reflecting the non-essential and hit-driven nature of the products and services offered. Additionally, five-year CAGR starts around Covid, when revenue was depressed then rebounded.

We at StockStory place the most emphasis on long-term growth, but within consumer discretionary, a stretched historical view may miss a company riding a successful new property or trend. Delta’s recent performance shows its demand has slowed as its annualized revenue growth of 6.6% over the last two years was below its five-year trend. We’re wary when companies in the sector see decelerations in revenue growth, as it could signal changing consumer tastes aided by low switching costs.

We can better understand the company’s revenue dynamics by analyzing its number of revenue passenger miles, which reached 66.77 billion in the latest quarter. Over the last two years, Delta’s revenue passenger miles averaged 1.3% year-on-year growth. Because this number is lower than its revenue growth during the same period, we can see the company’s monetization has risen.

This quarter, Delta reported year-on-year revenue growth of 18.7%, and its $19.76 billion of revenue exceeded Wall Street’s estimates by 3.9%.

Looking ahead, sell-side analysts expect revenue to grow 5.9% over the next 12 months, similar to its two-year rate. This projection is underwhelming and indicates its newer products and services will not catalyze better top-line performance yet.

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Operating Margin

Delta’s operating margin has shrunk over the last 12 months and averaged 8.7% over the last two years. The company’s profitability was mediocre for a consumer discretionary business and shows it couldn’t pass its higher operating expenses onto its customers.

In Q2, Delta generated an operating margin profit margin of 9.4%, down 3.2 percentage points year on year. This contraction shows it was less efficient because its expenses grew faster than its revenue.

Earnings Per Share

Revenue trends explain a company’s historical growth, but the long-term change in earnings per share (EPS) points to the profitability of that growth — for example, a company could inflate its sales through excessive spending on advertising and promotions.

Delta’s full-year EPS flipped from negative to positive over the last five years. This is encouraging and shows it’s at a critical moment in its life.

In Q2, Delta reported EPS of $2.44, down from $3.27 in the same quarter last year. Despite falling year on year, this print easily cleared analysts’ estimates. Over the next 12 months, Wall Street expects Delta’s full-year EPS to grow 25.3% from $6.02 to $7.54.

Key Takeaways from Delta’s Q2 Results

It was good to see Delta beat analysts’ EPS expectations this quarter. We were also excited its adjusted operating income outperformed Wall Street’s estimates by a wide margin. Zooming out, we think this was a good print with some key areas of upside. The stock traded up 2.5% to $91.23 immediately following the results.

Delta may have had a good quarter, but does that mean you should invest right now? When making that decision, it’s important to consider its valuation, business qualities, as well as what has happened in the latest quarter. We cover that in our actionable full research report which you can read here (it’s free).