Stocks Comparison
Delta Air Lines vs Southwest Airlines: revenue, profit, margins and growth compared
Delta Air Lines brought in $63.4B of revenue in fiscal 2025, Southwest Airlines $28.1B in fiscal 2025. Revenue changed by +2.8% at Delta Air Lines and +2.1% at Southwest Airlines on the year before, so Delta Air Lines grew faster. Delta Air Lines kept 7.9% of its revenue as net profit, Southwest Airlines 1.6%. Free cash flow was $3.8B at Delta Air Lines and -$831M at Southwest Airlines.
Side by side, latest fiscal year
| DAL | LUV | |
|---|---|---|
| Fiscal year ended | FY2025 (December 31, 2025) | FY2025 (December 31, 2025) |
| Revenue | $63.4B | $28.1B |
| Revenue growth | +2.8% | +2.1% |
| Net income | $5B | $441M |
| Net margin | 7.9% | 1.6% |
| Free cash flow | $3.8B | -$831M |
| Free cash flow margin | 6.1% | -3.0% |
| Earnings per share (diluted) | $7.66 | $0.79 |
| Cash | $4.3B | $3.2B |
| Debt | $13.3B | $4.9B |
| Price to earnings | 11.1 | 54.0 |
| Market value | $55.9B | $20.9B |
| Dividend yield | 0.79% | 1.69% |
| Rank by revenue in sector | #13 of 778 · Consumer discretionary | #36 of 778 · Consumer discretionary |
Over the years
Questions about Delta Air Lines and Southwest Airlines
Which is bigger by revenue, Delta Air Lines or Southwest Airlines?
Delta Air Lines is bigger by revenue: $63.4B in fiscal 2025, against $28.1B for Southwest Airlines in fiscal 2025.
Which keeps more of its revenue as profit, Delta Air Lines or Southwest Airlines?
Delta Air Lines had a net margin of 7.9% in fiscal 2025; Southwest Airlines had 1.6% in fiscal 2025.
Which grew revenue faster, Delta Air Lines or Southwest Airlines?
In their latest fiscal years revenue changed by +2.8% at Delta Air Lines and +2.1% at Southwest Airlines.
Where do these numbers come from?
From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.