A quick look at the price-to-earnings ratios for airline stocks including Southwest Airlines (LUV 0.19%), American Airlines (AAL 0.52%), Delta Airlines (DAL 1.28%), and United Airlines Holdings (UAL 1.67%) says these are dirt cheap. Combine that with a surging global economy and China reopening, and it seems like a can't-miss investment. But Motley Fool contributors Jason Hall and Tyler Crowe see a potential threat to future profits investors should consider first. They explain it in detail in this video.  

*Stock prices used were from the afternoon of Feb. 16, 2023. The video was published on March 3, 2023.