Horizontal En-route Flight Efficiency
Updated monthly Daily data Latest release October 14, 2026
Data and Resources
-
Horizontal flight efficiency (API table).csvCSV
Consolidated from the source files in this dataset. Formats are normalised...
-
Horizontal_Flight_Efficiency.xlsxXLSX
Covers 2014-01-01 to 2026-09-30. Released 2026-10-14.
25 yearly files
- hfe_2026.csv.bz2 604.7 KiB
- horizontal_flight_efficiency_2026.csv 3.3 MiB
- hfe_2025.csv.bz2 808.3 KiB
- horizontal_flight_efficiency_2025.csv 4.4 MiB
- hfe_2024.csv.bz2 807.5 KiB
- horizontal_flight_efficiency_2024.csv 4.4 MiB
- hfe_2023.csv.bz2 805.2 KiB
- horizontal_flight_efficiency_2023.csv 4.4 MiB
- hfe_2022.csv.bz2 801.7 KiB
- horizontal_flight_efficiency_2022.csv 4.4 MiB
- hfe_2021.csv.bz2 782.8 KiB
- horizontal_flight_efficiency_2021.csv 4.3 MiB
- hfe_2020.csv.bz2 772.9 KiB
- horizontal_flight_efficiency_2020.csv 4.3 MiB
- hfe_2019.csv.bz2 801.8 KiB
- horizontal_flight_efficiency_2019.csv 4.4 MiB
- hfe_2018.csv.bz2 787.9 KiB
- horizontal_flight_efficiency_2018.csv 4.3 MiB
- hfe_2017.csv.bz2 803.1 KiB
- horizontal_flight_efficiency_2017.csv 4.4 MiB
- hfe_2016.csv.bz2 802.5 KiB
- horizontal_flight_efficiency_2016.csv 4.4 MiB
- hfe_2015.csv.bz2 530.6 KiB
- horizontal_flight_efficiency_2015.csv 2.9 MiB
- hfe_2014.csv.bz2 532 KiB
API
API name: horizontal-flight-efficiency
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=horizontal-flight-efficiency&limit=5'Python
import pandas as pd
df = pd.read_csv('https://polaris.goens.dev/datastore/dump/horizontal-flight-efficiency?format=csv')R
df <- read.csv('https://polaris.goens.dev/datastore/dump/horizontal-flight-efficiency?format=csv')API documentation and rate limits
Cite this data
Source: EUROCONTROL Aviation Intelligence Unit. Horizontal En-route Flight Efficiency. https://polaris.goens.dev/dataset/horizontal-flight-efficiency
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
Please note that additional quality control measures detected a limited number of abnormal flight trajectories starting towards the end of 2015 which were removed by applying an additional filter as of 01 January 2015. Due to this quality improvement, the period January 2015 - May 2016 might differ slightly from older data releases.
Horizontal en-route flight efficiency compares the length of actual or planned flight trajectories to the corresponding “achieved” distance.
The achieved distance apportions the Great Circle Distance between two points within the European airspace (reference area). If the origin/destination airport is located outside of European airspace, the entry/exit point into the reference area is used for the calculation.
The planned trajectory is derived from the flight plans submitted by airspace users to the Network Manager. The actual flown trajectory is based on processed radar track data (a.k.a. correlated position reports or CPR ) submitted by ANSPs to the EUROCONTROL Enhanced Tactical Flow Management System ( ETFMS ).
KEP and KEA are performance indicators measuring horizontal en-route flight inefficiency in flight plans (KEP) and in actual flown trajectories (KEA) over a period of 12 months. Please note that the values are NOT monthly averages but the average over the entire 12 months period preceding the given END-DATE.
Data sources
- Published by
- EUROCONTROL - Performance Review Unit (PRU)
- Underlying data
- Network Manager
- Contact
- PRU-Support@eurocontrol.int
The table view shows where each column comes from, under Data Dictionary.
Recent changes at the source
- 2016-04-22: All, DEC 2015-MAR 2016: Additional quality control measures detected a limited number of abnormal flight trajectories starting in December 2015 which were removed by applying an additional filter.
- 2016-08-03: All, JAN 2015-JUN 2016: To ensure consistency, the filter has been applied for all months in 2015
Additional Info
| Field | Value |
|---|---|
| Update frequency | Monthly |
| Time resolution | Daily |
| Data from | 2014-01-01 |
| Data to | 2026-09-30 |
| Data description | https://ansperformance.eu/reference/dataset/horizontal-flight-efficiency/ |
| Methodology | https://ansperformance.eu/methodology/horizontal-flight-efficiency-pi/ |
| Source page | https://ansperformance.eu/data/ |