Delta Air Lines Inc. (DAL) said on Tuesday at a New York investor conference that it could see its average passenger revenue rise 16% in March as a result of improvements in its corporate business, according to reports.

The airline said last month’s revenue fell by $65 million, as a result of the nationwide storms that canceled flights coast to coast, with the storms costing the airline $30 million, and costs falling by $35 million as a result of canceled flights, Dow Jones reported.

Delta forecast operating margins of 1% to 2% for the March quarter, with passenger revenue per seat mile rising 8% in February compared to a year ago, the news service said.

Shares of Delta rose 27 cents or 2.15% in Tuesday’s session, closing at $12.81 a share.