Open Air Traffic Data for Research.
×1000 MODE-S messages collected so far:
# tracked a/c MODE-S:
# MODE-S Messages / s:
# of seen aircraft:
FLARM messages collected so far:
# tracked a/c FLARM:
# FLARM Messages / s:

COVID-19 Dataset

While we are sad to be tracking much fewer aircraft these days, we have created a much requested research dataset for all flights that we have tracked in the first three months of 2020. You can find more information here and the dataset here.

OpenSky and ATCO2 Project

We are excited to and proud to be part of a project called “AuTomatic COllection and processing of voice data from Air-Traffic Communications” (ATCO2), a project funded by European Commission under Horizon2020 framework.

ATCO2 project aims at developing automatic ATC voice data transcription system. The outcome of the project can potentially be used to make aviation safer and more efficient in so many ways.

The good news is that you, too, can participate in the project! We are looking for people to annotate and check the quality of automatically transcribed voice data.

If interested, contact us be sending e-mail to This email address is being protected from spambots. You need JavaScript enabled to view it. for further details. More info can be found from our forum and project website

Join the OpenSky Network Team!

Long story short – there is so much going on around OpenSky Network, that we are in desperate need of highly motivated Software Engineers. 

There are two paid full-time posts available, ideally to be in Zurich, Switzerland or Tallinn, Estonia. (Other locations also possible.)  

More info about the role in our forum or This email address is being protected from spambots. You need JavaScript enabled to view it.

Come to the OpenSky Workshop

Thank you everyone for the most exciting 7th OpenSky Workshop in Zurich. The proceedings are now available. See you in Brussels next year!

About the OpenSky Network

The OpenSky Network is a community-based receiver network which has been continuously collecting air traffic surveillance data since 2013. Unlike other networks, OpenSky keeps the collected raw data forever and makes it accessible to academic and institutional researchers. With over 20 trillion ADS-B, Mode S and FLARM messages collected from more than 2000 sensors around the world, the OpenSky Network exhibits the largest air traffic surveillance dataset of its kind.

Aircraft Database

Find and track aircraft with our comprehensive database. You can also add and update information!

Enter »

Unfiltered live API

Our live API comes with Java and Python bindings, but it can be used with any language that supports JSON-based REST APIs.

Read more »

OpenSky Explorer

Browse through historical air traffic with our OpenSky Explorer.

OpenSky Explorer »

Air Traffic Statistics

See up-to-date statistics on air traffic and our network on our Network Facts page.

See Statistics »



Blog — Featured

Log in or Register
This website uses cookies to offer you the best experience of our services. By using this website you agree to our privacy policy!
More information Ok