April 10 (Reuters) - Delta Air Lines Inc forecast second-quarter profit above Wall Street expectations and reported a 31 percent rise in quarterly profit on Wednesday, boosted by a renewed agreement with credit-card issuer American Express and robust travel demand.
The company said it expects profit for the second quarter to be in the range of $2.05 per share to $2.35 per share.
At the midpoint of the range, the profit forecast was above average analyst estimate of $2.13 per share, according to IBES data from Refinitiv.
The airline forecast total unit revenue, a closely watched performance metric, to increase 1.5 percent to 3.5 percent in the second quarter.
The No.2 U.S. carrier's net income rose to $730 million in the first quarter ended March 31 from $557 million a year earlier. On an adjusted basis, Delta earned 96 cents per share, beating expectations of 90 cents per share.
Total operating revenue rose 5.1 percent to $10.47 billion in the quarter. (Reporting by Ankit Ajmera in Bengaluru; Editing by Arun Koyyur)