After last year’s turbulence, many airline stocks are soaring once again. Delta Air Lines (NYSE:DAL) is one of them. Since the start of the year, Delta Air Lines stock has climbed steadily higher, surging by a total of 31.72%.While you may regret not getting back into the legacy carrier’s shares before this rally, not to worry. There’s still time to catch this flight. At least, based on key takeaways from Delta’s latest earnings release, as well as more recent promising news regarding air travel demand,Cons ...