Methodology

Source

AirBQ Cohort A uses official BTS Airport Snapshot pages. Each HTML response is stored as an immutable snapshot, hashed, parsed by explicit labels and table headings, and validated before export.

Semantics

Average delay values refer to delayed flights only. The rolling period is 2025-07 – 2026-06.

Scope

These are reference statistics, not real-time flight information or recommendations.

Flight records

The three flight pages use BTS Reporting Carrier On-Time Performance for June 2026 only. Identity is the reporting carrier and its flight number. The file has no marketing-carrier field, so those pages do not show a marketed flight number. Arrival on-time uses completed flights only: scheduled, minus cancelled, minus diverted. Diverted flights are counted separately and are not in that denominator. The published set is DL 1361, F9 3229, and G4 12.