Economic malaise among consumers and businesses is softening domestic travel demand, prompting the Atlanta-based airline to set its year-over-year revenue growth forecast for the first quarter at 3-4%, down from initial guidance of 7-9%, according to a Monday filing with the U.S. Securities and Exchange Commission.

Delta Air Lines cut its first-quarter revenue and profit forecasts, citing weaker consumer and corporate travel demand.

Delta Air Lines Inc. cut its profit expectations for the first quarter roughly by half on weakening travel demand, the latest sign that economic worries are pressuring consumer spending.