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Delta Air Lines, Inc.

DALNYSEAir Transportation, ScheduledFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 9, 2026Score 10/3012% above fair value
$83.42+3.27 (+4.08%)

Close on Nov 2, 2026Market cap $54.86BP/E 16.7Yield 0.81%

Delta Air Lines Non-Fuel Unit Cost / CASM-Ex (¢/ASM) by Quarter

QuarterlyAnnual

Delta Air Lines Non-Fuel Unit Cost / CASM-Ex (¢/ASM): 14 in Q3 2026, up 7.3% from a year earlier.

Latest, Q3 2026
14
Period ended Sep 30, 2026
Change on a year earlier
+7.3%
13 in Q3 2025
History
31 quarters
Since Q1 2019
Sources
28
Documents cited below

Where the Q3 2026 figure comes from

Source: Delta Form 8-K Earnings Release (2026-10-09) ↗

Beginning in 2026 (with retrospective figures for 2025 quarters), Delta additionally excludes third-party MRO expense from CASM-Ex to purely reflect the airline's core seat-mile operating costs.

Quarterly history

Hover a value to see the sentence it was read from; calculated values show their formula

PeriodEndedNon-Fuel Unit Cost / CASM-Ex (¢/ASM)Year on yearSource
Q3 2026Sep 30, 202614+7.3%Delta Form 8-K Earnings Release (2026-10-09) ↗
Q2 2026Jun 30, 202614+6.7%Delta Form 8-K Earnings Release (2026-07-10) ↗
Q1 2026Mar 31, 202615+6.3%Delta Form 8-K Earnings Release (2026-04-08) ↗
Q4 2025Dec 31, 202514+2.3%Delta Form 8-K Q4 2025 Supplemental Schedule (2026-01-13) ↗
Q3 2025Sep 30, 202513-1.7%Delta Form 8-K Q4 2025 Supplemental Schedule (2026-01-13) ↗
Q2 2025Jun 30, 202513+0.5%Delta Form 8-K Q4 2025 Supplemental Schedule (2026-01-13) ↗
Q1 2025Mar 31, 202514+1.1%Delta Form 8-K Q4 2025 Supplemental Schedule (2026-01-13) ↗
Q4 2024Dec 31, 202414+3.2%Delta Form 8-K Earnings Release (2026-01-13) ↗
Q3 2024Sep 30, 202413+5.6%Delta Form 8-K Earnings Release (2025-10-09) ↗
Q2 2024Jun 30, 202413+0.6%Delta Form 8-K Earnings Release (2025-07-10) ↗
Q1 2024Mar 31, 202414+1.6%Delta Form 8-K Earnings Release (2025-04-09) ↗
Q4 2023Dec 31, 202313+1.1%Delta Form 8-K Earnings Release (2025-01-10) ↗
Q3 2023Sep 30, 202313+1.3%Delta Form 8-K Earnings Release (2024-10-10) ↗
Q2 2023Jun 30, 202313+2.4%Delta Form 8-K Earnings Release (2024-07-11) ↗
Q1 2023Mar 31, 202314+4.7%Delta Form 8-K Earnings Release (2024-04-10) ↗
Q4 2022Dec 31, 202213+4.6%Delta Form 8-K Earnings Release (2024-01-12) ↗

Breakdown

What makes up non-Fuel Unit Cost / CASM-Ex (¢/ASM)

Cite this data

StockData. (2026). Delta Air Lines Non-Fuel Unit Cost / CASM-Ex (¢/ASM), quarterly Q1 2019–Q3 2026 [Data set]. Compiled from Delta Air Lines SEC filings and investor materials. https://stockdatahq.com/stocks/dal/kpis/casm-ex

See every metric in the Delta Air Lines KPI table. Data updated Nov 1, 2026.