Publish only a dated aircraft count explicitly identified as the airline's operating or current fleet.
Accepted: Airline SEC filing or annual report; Civil-aviation regulator aircraft registerExcluded: Stored, grounded or managed aircraft unless the source includes them in the stated operating scope; Fleet-summary and enthusiast websitesAirline Fleet Database
An initial eight source-linked in-service and firm-order records for Delta and United, with field-level admission rules.
8 records across two airlines
- Dataset version
- airline-fleets-2026.08.19.1
- As-of date
- December 31, 2025
- Source class
- Airline SEC filings
This first release is deliberately narrow. It does not claim complete global fleet coverage, and it never treats options, delivery schedules or third-party fleet estimates as aircraft on order.
Field-level evidence rules
Publish only firm purchase commitments stated by the airline or a manufacturer; keep options and purchase rights separate.
Accepted: Airline SEC filing or annual report; Manufacturer order register or issuer releaseExcluded: Options, purchase rights, memoranda of understanding and undisclosed assumptions; Backlog estimates from secondary databasesPublish a delivery only when the manufacturer or airline gives the aircraft type, recipient and delivery period.
Accepted: Manufacturer delivery register; Airline fleet or investor releaseExcluded: Observed flight activity without a controlling delivery record; Scheduled delivery datesPublish a retirement only after an airline filing or release states that the aircraft left the operating fleet and gives a date or reporting period.
Accepted: Airline SEC filing or annual report; Airline fleet-planning releaseExcluded: Temporary storage, maintenance grounding and announced future retirement plans; Absence from a third-party tracker| Airline | Aircraft | State | Qty | As of | Scope | Evidence |
|---|---|---|---|---|---|---|
| Delta Air Lines | A220-300 | in service | 36 | 2025-12-31 | mainline | SEC filing ↗ |
| Delta Air Lines | A321-200neo | in service | 87 | 2025-12-31 | mainline | SEC filing ↗ |
| Delta Air Lines | A220-300 | on order | 64 | 2025-12-31 | mainline | SEC filing ↗ |
| Delta Air Lines | 737-10 | on order | 100 | 2025-12-31 | mainline | SEC filing ↗ |
| United Airlines | A321neo | in service | 59 | 2025-12-31 | mainline | SEC filing ↗ |
| United Airlines | 737 MAX 9 | in service | 120 | 2025-12-31 | mainline | SEC filing ↗ |
| United Airlines | 787 family | on order | 150 | 2025-12-31 | mainline | SEC filing ↗ |
| United Airlines | A321XLR | on order | 50 | 2025-12-31 | mainline | SEC filing ↗ |
Official evidence, ready to inspect
This workspace does not use synthetic rows. Open the primary registers below to inspect the current record; Nivegu publishes normalized entries only after the fields and dates reconcile.
Delta Air Lines 2025 Form 10-KOfficial airline filing controlling four initial recordsOPEN OFFICIAL SOURCE ↗United Airlines 2025 Form 10-KOfficial airline filing controlling four initial recordsOPEN OFFICIAL SOURCE ↗
Latest connected briefings
These source-backed briefings keep the tracker useful while structured records pass field-by-field verification.
Published record standard
airlineaircraftstatequantityscopeas_of_datesource_published_atfirst_observed_atlast_verified_atsource_urlsource_typeevidence_notestatus
Counts are observations at the source's stated date, not live estimates. In-service, firm-order, delivered and retired states are never combined. Options, expected delivery dates, stored aircraft and future retirement plans remain excluded unless published under their own field and evidence rule.
Update cadence: Airline filings and manufacturer delivery registers are checked after each controlling release; every material change creates a versioned dataset release.
Verification status
The source monitor and evidence feed are live. Structured rows publish only when every required value reconciles with a controlling record; missing values are never inferred.
← Back to all trackers