The Aircraft LedgerCheck a tail

Data status · updated daily

How current every figure is

Flight data updates every morning. This page shows exactly how far each part of the site reaches, and any days where the record is thin.

Up to dateToday’s refresh finished at 05:52 UTC.

Latest flight data
9 November 2026
Pages about one aircraft run 7 days behind, to 3 Nov.
Last refresh
Today, 05:52
UTC. Next run tomorrow from 05:00.
Weather data
To 4 November
Published about a week behind real time.

Daily pipeline · 10 Nov 2026

All times UTC · checked 21:40
  • Flight data collected9 Nov · 9,893 aircraft seen04:58Done
  • Flights assembled and checked14,805 flights added04:58–05:00Done
  • Grades and benchmarks recalculated320 steps · 20,571 aircraft graded05:02–05:52Done
  • Pages rebuiltFleet, tail, airport and event pagesWithin an hour of the refreshDone
  • Weather historyBackfill 4% done · finishing early DecemberLatest Today, 21:39Running
  • Exposure profilesWeather exposure and runway measuresSun 15 Nov, from 05:00Scheduled
  • Next daily runCollects 10 NovTomorrow from 04:51Scheduled
The last 30 days of flight dataCompleteToday, filling inThin or missing
12 OctToday

01

By the numbers.

Everything behind the site, counted from the record itself and refreshed with each run.

flights recorded since April 2023
11.3m
days of flight data processed
1,318
aircraft graded against their type
20,571
flights added in the latest run
14,805

Data quality

How complete the record is, measured on October 2026.

  • Flights matched to a registered aircraft91%The rest have no matching registration and are left out.
  • Flights with both airports identified75%Others started or ended outside coverage; they still count toward hours.
  • Records removed as ground moves or implausible3.6%Taxiing, runway hops and overlong tracks are filtered out.

02

The last 30 days.

Every day’s run, as it was processed: flights added, aircraft seen and how long the work took.

flights added in 30 days
445,628
flights a day, on average
14,854
busiest day, 22 Oct
17,392
days processed in full
30 of 30
Flights added each dayWeekends shown lighter
11 Oct26 Oct9 Nov
Aircraft seen each day
Between 9,178 and 11,249 aircraft a day.
Minutes to process each day
Typically about 3 minutes from download to finished flights; the longest run took 22 minutes.

Where the graded aircraft fly

By the region most of each aircraft’s flights start from.

  • North America16,902
  • Europe3,038
  • South America886
  • Asia578
  • Several regions315
  • Oceania229
  • Africa156
  • Middle East116
  • CIS58

What the data publishes

Pages rebuilt from the record, every one dated.

fleet pages
49
buyer’s guides
26
comparisons
94
airport pages
351
route pages
0
event editions
44

03

What each figure covers.

Grades and benchmarks use fixed windows so they stay steady and citable. Activity charts include the current month as it fills in.

  • HistoryMonth-by-month charts, an aircraft’s record
    1 Apr 2023 – 9 Nov 2026
    Every flight since April 2023. The current month shows as a partial bar.
  • Tail gradesFree records, TailCheck, Spotlight
    9 Nov 2024 – 9 Nov 2026
    The last two years, recalculated every morning.
  • Fleet benchmarksFleet pages, guides, comparisons
    1 Nov 2025 – 31 Oct 2026
    The last 12 full calendar months. Next rolls forward once November is complete.
  • Airport and event figuresAirport pages, event pages, rankings
    1 Nov 2025 – 31 Oct 2026
    Full months for rankings; daily calendars run to the latest data.

04

Known gaps.

Days since April 2023 where the record is missing or unusually thin. Counts that include them are minimums.

  • 6 May 2026
    No flight data published by the source.
    Missing from all counts.
  • 5 May 2026
    About 20% of a normal day recorded.
    Counts for that day are minimums.

05

Recent method changes.

How the figures are measured, and when that changed. The full method is on the methodology page.

  1. Version 2 pipeline. Main and MLAT archives merged; landings judged against airfield elevation; gaps at cruise treated as one continuing flight; inferred airports limited to jet-capable fields and left blank when unclear; each flight records how it was observed.
  2. Page published.