The Moat Index

DELTA AIR LINES, INC.

DAL · Industrials · $55.0B mkt cap · FY2025 filings · Not rated ·

Not rated

/ 100
Not rated

We don't have enough comparable filing data to score DAL on every filter, so we don't publish a composite. Missing: pricingPower.

19 years of fundamentals

The business, in plain English

Across the filed record, revenue grew from $28.1B (FY2009) to $63.4B (FY2025) — about 5.2% a year compounded over 16 years.

It earned 28.5% on invested capital in FY2025, with a median of 29.8% across 13 filed years. The Returns on Capital filter above scores it 100/100.

The balance sheet carried $8.4B of total debt in FY2017. Balance-Sheet Safety scores it 100/100.

The share count fell 21.8% between FY2010 and FY2025 — management has been retiring shares, which concentrates each remaining owner's claim. Capital Discipline scores it 65/100.

This breakdown is generated from the filed numbers and sub-scores above — no outside narrative, no estimates. Where a filing doesn’t disclose an input, the sentence that would need it is omitted instead of guessed.

FY2007–FY2025 · 19 fiscal years, normalized from DAL’s SEC filings

RevenueSales, as filed$63.4B FY2025
$0$25B$50B2007201320192025
Gross marginRevenue kept after cost of goods

Not disclosed in DAL’s filings for these years — we don’t estimate it.

Return on invested capitalOperating profit on the capital employed28.5% FY2025
0%50%2007201320192025
Owner earningsCash an owner could take out$5.0B FY2025
−$10B$0$10B2007201320192025

Gaps in a line mean that item isn’t in DAL’s filings for that year — the series is never interpolated or estimated. The Table view lists every filed value, including operating and net margins, total debt, and share count.

Moat Score history

Score history begins 2026-07-17. Check back as the record builds.

Scores are logged append-only and never overwritten — this record can't be backfilled, which is exactly why it's worth keeping.

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DELTA AIR LINES, INC. (DAL) Moat Score — The Moat Index · Buy Like Buffett