Delta Air Lines hit by rising fuel prices

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Delta warned investors on Tuesday that its second-quarter profit will be lower than it originally projected. The airline paid about 6% more for fuel than in the previous quarter as the price of oil climbed.

(CNN Money) — Higher fuel prices are hurting Delta Air Lines.

Delta warned investors on Tuesday that its second-quarter profit will be lower than it originally projected. The airline paid about 6% more for fuel than in the previous quarter as the price of oil climbed.

Oil production has collapsed in crisis-stricken Venezuela, and the Trump administration is stepping up sanctions on Iran, insisting that other countries stop importing its oil. US crude hit $75 a barrel on Tuesday for the first time since 2014.

Strong demand for travel has allowed airlines to raise fares, limiting the hit. Delta said a key measure of fares was 4% to 5% higher in the quarter than a year earlier.

Shares of Delta, American Airlines and United Continental fell slightly in early trading on the profit warning. All ended the day lower.

Related: Plane tickets are about to get more expensive

Delta said travel demand remains strong, helping its results. Paying passengers flew 3.2% more miles. Delta also said it has controlled costs other than fuel, keeping the increase in those expenses to about 3%.

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