LUV · CIK 92380
What Southwest Airlines Co. told the SEC could break it.
Southwest's disclosures center on the inputs and infrastructure an airline can't easily control. Jet fuel and oil were about 19% of 2025 operating expenses, so its profitability is highly sensitive to fuel price, volatility, and supply delays. It also depends on a single engine supplier — and single suppliers of certain other aircraft parts and equipment — alongside Boeing, so an inability to get timely deliveries, support, or certification could be material. And it is exposed to the FAA: air-traffic-controller shortages and ATC-system inefficiencies have driven delays and cancellations, while airspace-modernization equipage and secondary-barrier mandates could impose substantial compliance costs.
3 self-disclosed vulnerabilities, pulled from its own filings — each in the company’s words, with the source. This is the risk register almost nobody reads.
In its own words
What could break it.
Commodity & input dependence
- jet fuelhigh
Jet fuel and oil were ~19% of operating expenses in 2025; profitability is highly sensitive to fuel availability, price increases, and price volatility, and operations are exposed to delayed fuel supply.
“Airlines are inherently dependent upon energy to operate, and jet fuel and oil represented approximately 19 percent of the Company's operating expenses for 2025.”
Sole-source dependency
- single aircraft engine supplierhigh
Southwest is dependent on a single engine supplier, plus single suppliers of certain other aircraft parts and equipment; an inability to obtain timely delivery, support, or regulatory certification could be material.
“The Company is currently dependent on a single engine supplier, as well as single suppliers of certain other aircraft parts and equipment; therefore, the Company could be materially adversely affected (i) if it were unable to obtain timely or sufficient delivery of aircraft parts or equipment from Boeing or other suppliers or adequate maintenance or other support from any of”
SEC filing →As of 2026
Regulatory & policy
- FAA ATC controller shortages / airspace modernization mandatesmedium
FAA air-traffic-controller shortages and ATC-system inefficiencies have caused delays/cancellations, and airspace-modernization equipage mandates plus secondary-barrier rules could impose substantial compliance costs.
“Controller shortages and inefficiencies in the ATC system have caused air carrier delays and cancellations, which may significantly impact the Company's operations and cost.”
SEC filing →As of 2026
The hidden graph
Who it depends on, and who depends on it.
Relationships surfaced from filings — including ones disclosed by the other side, which is how the non-obvious ones come to light.
Its suppliers
“The Company is dependent on Boeing as its sole supplier for many of its aircraft parts.”
Cited →
In the MyPRIA app, this is checked against the companies you actually own.
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