American Airlines Group Inc. (AAL) vs Southwest Airlines Co. (LUV)

American Airlines Group Inc. and Southwest Airlines Co. are both Airlines companies. Southwest Airlines Co. is the larger, with a market value of $20.5B against $9.0B — 2.3× the size. American Airlines Group Inc. has negative trailing earnings, so its P/E is not meaningful; Southwest Airlines Co. trades at 25.7×. Southwest Airlines Co. grew revenue faster over the last twelve months: 9.46% against 7.53%. Southwest Airlines Co. has the higher net margin (2.79% vs −0.56%) and the higher return on invested capital (7.04% vs 3.82%). Across the 18 metrics below, Southwest Airlines Co. leads on 11 and American Airlines Group Inc. on 7.