Delta Air Lines (NYSE: DAL) reported earnings on April 25. Here are the numbers you need to know.

The 10-second takeaway
 For the quarter ended March 31 (Q1), Delta Air Lines met expectations on revenues and missed expectations on earnings per share.

Compared to the prior-year quarter, revenue increased and GAAP earnings per share increased.

Margins grew across the board.

Revenue details
 Delta Air Lines reported revenue of $8.41 billion. The eight analysts polled by S&P Capital IQ expected sales of $8.36 billion on the same basis. GAAP reported sales were 8.6% higher than the prior-year quarter's $7.75 billion.

Source: S&P Capital IQ. Quarterly periods. Dollar amounts in millions. Non-GAAP figures may vary to maintain comparability with estimates.

EPS details
 Non-GAAP EPS came in at -$0.05. The 13 earnings estimates compiled by S&P Capital IQ predicted -$0.04 per share on the same basis. GAAP EPS were $0.15 for Q1 against -$0.38 per share for the prior-year quarter.

Source: S&P Capital IQ. Quarterly periods. Non-GAAP figures may vary to maintain comparability with estimates.

Margin details
 For the quarter, gross margin was 39.4%, 2,530 basis points better than the prior-year quarter. Operating margin was 4.4%, 550 basis points better than the prior-year quarter. Net margin was 1.5%, 560 basis points better than the prior-year quarter.

Looking ahead
 Next quarter's average estimate for revenue is $9.48 billion. On the bottom line, the average EPS estimate is $0.76.

Next year's average estimate for revenue is $36.72 billion. The average EPS estimate is $2.28.

Investor sentiment
 The stock has a one-star rating (out of five) at Motley Fool CAPS, with 538 members out of 921 rating the stock outperform, and 383 members rating it underperform. Among 213 CAPS All-Star picks (recommendations by the highest-ranked CAPS members), 119 give Delta Air Lines a green thumbs-up, and 94 give it a red thumbs-down.

Of Wall Street recommendations tracked by S&P Capital IQ, the average opinion on Delta Air Lines is outperform, with an average price target of $14.36.