Southwest Airlines stock has soared by 17% after the carrier reported improved operational performance during the Full Year and Q4 2025 earnings call, duly increasing its 2026 earnings guidance to more than four times its 2025 figures.
The carrier posted a significant increase in its operating income, which went from $321 million in 2024 to $428 million in 2025, up 33.3%.
Net income actually decreased by 5.2%, from $465 to $465 million, due to lower interest income. This can be attributed to the carrier engaging in an aggressive share buyback program, which saw it allocate nearly $3 billion in cash to repurchase its own shares.
However, this is one of the factors that has contributed to the dramatic boost in expected earnings per share for 2026, to nearly $4 per share from $0.93 in 2025.
These results, plus the related guidance for 2026, have mostly been interpreted by the market as an endorsement of the business transformation plan which Southwest Airlines is currently going through.
After a period of lackluster performance, and at the behest of activist investment fund Eliott (one of the carrier’s largest shareholders), Southwest Airlines embarked on the largest internal shakeup since 1978, when it pioneered the low-cost airline model.
Southwest Airlines is revamping its IT systems and business proposition, introducing new ancillary fees for factors including baggage, as other carriers do, and ending long-established practices such as first-come-first-served seat assignments. The carrier has also been diversifying its income by boosting its credit card program, launching a vacation packages business and establishing partnerships with other airlines.