Southwest Airlines proposed notes rated BBB+ by Fitch as debt refinancing needs build

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Southwest notes rated BBB+

Highlights

Fitch assigns BBB+ rating with Negative Outlook to Southwest's proposed multi-tranche senior unsecured notes, citing over $2.1 billion debt maturing post-Sept. 30, 2026.
Southwest's liquidity stood at $5.6 billion, about 18% of revenue, and $15.8 billion in unencumbered assets at Q3 2026, supporting financial flexibility.
Year-to-date Q3 2026 yield up 16.9%, operating margin up 480 basis points excluding special items, but free cash flow set to remain negative in 2026-2027 due to higher fuel costs and share repurchases.

Bond issuance supports liquidity planning

As reported by Fitch Ratings, the proposed multi-tranche senior unsecured notes are rated BBB+ and will rank pari passu with Southwest Airlines Co.'s existing senior unsecured debt.

Proceeds are intended for general corporate purposes, although Fitch expects part of the issuance to refinance maturing debt. As of Sept. 30, 2026, Southwest had more than $2.1 billion of debt coming due over the following 12 months.

Fitch says the airline's Negative Outlook reflects constrained near-term free cash flow during its fleet replacement cycle, even though that spending is viewed as more flexible because aircraft deliveries can be deferred if needed. The rating agency also points to higher borrowing tied to shareholder returns, which has reduced liquidity and is expected to keep leverage near the upper end of BBB+ sensitivities unless margins and free cash flow improve on a sustained basis.

Liquidity totaled $5.6 billion at the end of the third quarter of 2026, equal to about 18% of last-12-month revenue, according to Fitch. The agency also cites an estimated $15.8 billion of unencumbered assets, mostly financeable aircraft, as a key source of financial flexibility.

Demand trends offset some fuel and leverage risks

Southwest's operating performance in 2026 shows early gains from its strategic initiatives, with year-to-date third-quarter yield up 16.9%, broadly flat capacity and load factor improving by 30 basis points. Operating margin, excluding special items, expands by 480 basis points in the first nine months to the third quarter, supported by 17.8% growth in RASM excluding special items, while the company projects 19% to 21% RASM growth in the fourth quarter.

Fitch says resilient demand is broad-based, with managed business travel a particular strength. The agency adds that measures such as extra-legroom seating, assigned seating and the end of Southwest's Bags Fly Free policy could offset a meaningful portion of higher fuel expense, although consumer health remains a risk if the Middle East conflict contributes to a wider economic slowdown and weaker travel demand.

Even so, shareholder distributions remain a central rating constraint. Southwest spent $2.55 billion on repurchases in 2025 and $1.25 billion in the first quarter of 2026, and Fitch expects the airline to borrow at least $3 billion in 2026 to fund aircraft deliveries and share repurchases.

Fitch expects Southwest to remain free cash flow negative in 2026 and 2027 as higher jet fuel prices delay the benefits of its strategy. The agency says the airline's BBB+ rating remains in line with Ryanair Holdings plc and above most North American peers, supported by its balance sheet, unencumbered assets and low-cost model.

In our earlier article on Hainan Rubber’s proposed subordinated perpetual sustainable securities, we outlined how the company aimed to refinance offshore debt via notes issued by its Halcyon Agri unit and why Fitch rated the instruments below the issuer rating due to subordination and coupon-deferral features. We also highlighted Fitch’s view of Hainan Rubber’s elevated leverage and the role of liquidity, funding access and expected state support in underpinning its financial flexibility.

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