Who wins?
Southwest vs Delta
Southwest wins 55% to 45%. 4 more put them in the same row. From Airlines Tier List. Pick a side.
MegaWaffle8679 on Southwest: no assigned seats is changing in 2026, which kills what made it Southwest
MegaWaffle8679 on Delta: the best US airline, the lounges are good
Airlines Tier List: the full ranking