April 12 (Reuters) - Delta Air Lines Inc on Wednesday reported a 36.3 percent decline in quarterly profit and forecast passenger unit revenue, a closely watched metric, to increase 1-3 percent in the second quarter.
The company's net income fell to $603 million, or 82 cents per share, in the first quarter ended March 31, from $946 million, or $1.21 per share, a year earlier.
On an adjusted basis, the No. 2 U.S. airline by passenger traffic earned 77 cents per share.
Total operating revenue fell 1.1 percent to $9.15 billion.
Delta said its passenger unit revenue - which compares sales with flight capacity - dropped 0.5 percent. (Reporting by Ankit Ajmera in Bengaluru; Editing by Maju Samuel)