Delta lost $168 million, or 20 cents per share, in the second quarter because bets on oil prices went the wrong way.
The airline lost $561 million on wrong oil price bets that haven't settled yet.
If not for special items like that, Delta would have earned $586 million for the quarter, or 69 cents per share. Analysts surveyed by FactSet had been expecting net income of 68 cents per share.
Revenue rose 6 percent to $9.73 billion, better than analysts had expected.
Delta plans to cut third-quarter flying as much as 3 percent compared to the same period last year.
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