The company’s rival, United Airlines (UAL), emerged as the top gainer in the broader S&P 500 index, with a 14.3% jump, while Delta itself rose 12% and Southwest Airlines gained over 8%.

Delta Air Lines released their latest earnings report Thursday, saying that the results so far for the quarter were in line with expectations from April.

Delta executives are pursuing even more segmentation just as Americans' spending habits are under close scrutiny.

After withdrawing its outlook in April, Delta is again forecasting a profit—though at a significantly lower level than originally projected.

Delta Air Lines is scheduled to release its second-quarter results Thursday, setting the tone for other carriers like United, Southwest, and American, each set to report later this month.

Delta Air Lines' strong earnings and projected growth provided an early boom for the airline industry as the rest of the major carriers prepare to report.

Delta Air Lines' stock has gained nearly 3% over the past week ahead of the company’s earnings before the bell on Thursday. According to Fiscal.ai data, Wall Street expects the company to post second-quarter earnings per share (EPS) of $2.