Daily En-route ATFM Delay by ACC

Daily en-route ATFM delay for each area control centre (ACC), by cause, compared with the previous year.

Updated daily Daily data Data to November 5, 2026 Source dashboard

Operational data, updated every day up to yesterday. Recent days may be revised; Polaris keeps every day it has received, so history continues past the end of each year.

Data and Resources

API

API name: daily-atfm-delay-accs

First 5 rows · Download all rows: CSV · TSV · JSON · XML

Code examples

curl

curl 'https://polaris.goens.dev/api/3/action/datastore_search?resource_id=daily-atfm-delay-accs&limit=5'

Python

import pandas as pd

df = pd.read_csv('https://polaris.goens.dev/datastore/dump/daily-atfm-delay-accs?format=csv')

R

df <- read.csv('https://polaris.goens.dev/datastore/dump/daily-atfm-delay-accs?format=csv')

API documentation and rate limits

Cite this data

Source: EUROCONTROL Aviation Intelligence Unit. Daily En-route ATFM Delay by ACC. https://polaris.goens.dev/dataset/daily-atfm-delay-accs

May be copied in whole or in part, provided that EUROCONTROL is mentioned as the source and it is not used for commercial purposes. Full disclaimer

About this data

Flights, minutes of en-route ATFM delay and delay per flight for each ACC, with the split by cause. Each ACC appears twice per day, under its State and under the Total Network Manager Area, so filter on State before adding up ACCs.

Data sources

Published by
EUROCONTROL Aviation Intelligence Unit
Underlying data
Network Manager

The table view shows where each column comes from, under Data Dictionary.

Additional Info

Field Value
Update frequency Daily
Time resolution Daily
Data from 2024-03-02
Data to 2026-11-05
Data description
Methodology
Source page https://www.eurocontrol.int/Economics/DailyDelay-ACCs.html