Global airline Delta Air Lines (NYSE: DAL) beat Wall Street’s revenue expectations in Q1 CY2026, with sales up 12.9% year on year to $15.85 billion. Its GAAP loss of $0.44 per share was significantly below analysts’ consensus estimates.

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"Delta's results underscore the power of our brand and the durability of our financial foundation. We delivered earnings that were more than 40 percent higher than last year, even with a significant increase in fuel costs and operational disruptions across the industry," said Ed Bastian, Delta's chief executive officer.

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

Examining a company’s long-term performance can provide clues about 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 38.8% 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 5.1% 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 dig further into the company’s revenue dynamics by analyzing its number of revenue passenger miles, which reached 56.47 billion in the latest quarter. Over the last two years, Delta’s revenue passenger miles averaged 1.4% 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 12.9%, and its $15.85 billion of revenue exceeded Wall Street’s estimates by 4.3%.

Looking ahead, sell-side analysts expect revenue to grow 8.4% over the next 12 months. Although this projection indicates its newer products and services will spur better top-line performance, it is still below average for the sector.

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Operating Margin

Delta’s operating margin has generally stayed the same over the last 12 months, and we generally like to see margin increases due to economies of scale and cost efficiency over time.

This quarter, Delta generated an operating margin profit margin of 3.2%, in line with the same quarter last year. This indicates the company’s overall cost structure has been relatively stable.

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 Q1, Delta reported EPS of negative $0.44, down from $0.37 in the same quarter last year. This print missed analysts’ estimates. We also like to analyze expected EPS growth based on Wall Street analysts’ consensus projections, but there is insufficient data.

Key Takeaways from Delta’s Q1 Results

We enjoyed seeing Delta beat analysts’ revenue expectations this quarter. Guiding to low-teens revenue growth in the June quarter was also a positive surprise, as it slightly exceeded Wall Street's expectations. On the other hand, its EPS guidance for next quarter fell short of Wall Street’s estimates. The biggest news driving the stock (and the entire market for that matter) is the ceasefire with Iran announced by President Trump last night. If it holds, it should be a double positive for airline stocks as a prolonged conflict is a major headwind to travel and also raises the cost of fuel. The stock traded up 12.2% to $73.64 immediately after reporting.

Is Delta an attractive investment opportunity at the current price? If you’re making that decision, you should consider the bigger picture of valuation, business qualities, as well as the latest earnings. We cover that in our actionable full research report which you can read here (it’s free).