The Filing Desk

Alaska Air Group vs Southwest Airlines

Alaska Air Group ALK · Southwest Airlines LUV · Passenger Airlines

Southwest Airlines reported revenue of $28.1 billion in fiscal 2025, 2.0 times Alaska Air Group's $14.2 billion in fiscal 2025. Alaska Air Group's revenue grew 21.3% in its latest year, and Southwest Airlines' grew 2.1%. Alaska Air Group had an operating margin of 2.1%, against 1.5% at Southwest Airlines. Free cash flow was $940 million at Alaska Air Group and −$831 million at Southwest Airlines.

Side by side

Alaska Air GroupSouthwest Airlines
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$14.2B$28.1B
Revenue growth21.3%2.1%
Revenue growth a year, last 5 years31.9%25.4%
Gross margin——
Operating margin2.1%1.5%
Net margin0.7%1.6%
Free cash flow$940M−$831M
Free cash flow margin6.6%−3.0%
Return on capital2.9%3.7%
Net debt to EBITDA3.1x0.9x
Dividends and buybacks$570M$2.9B
Change in diluted share count−6.6%−13.2%
Last close$34.95$42.85
P/E at the last close—20.9×
Insider trades, last 12 monthsbought $1.0 million, sold $3.5 millionsold $306,534
Piotroski F-score5 of 87 of 8
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
Alaska Air GroupSouthwest Airlines
Operating margin
Percent of revenue
Alaska Air GroupSouthwest Airlines
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
Alaska Air GroupSouthwest Airlines

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the Alaska Air Group and Southwest Airlines pages.