Live flights on a 3D globe: the whole world, or the plane above your house
OKO shows aircraft positions from open ADS-B receiver networks — usually 11 to 13 thousand aircraft at a time. Click an aircraft to follow it: the camera keeps it in view, a trail is drawn behind it and a card shows its type, altitude, speed and, for airline flights, the route.
What you can do with a flight
Up close, aircraft turn into 3D models by category — airliners, turboprops, business jets, light aircraft, helicopters or drones. A followed aircraft gets a 3D model once the camera is below 150 km, and below 800 km so do the aircraft around the camera.
The cockpit view shows the flight through the pilot’s eyes with altitude, speed and heading. Altitude and speed charts trace the flight, a filter with eight categories hides what you do not need, and OKO flags the emergency transponder codes 7500, 7600 and 7700.
- Military flights as a separate layer, from open ADS-B data.
- Signed-in users can save up to 50 followed flights and, while OKO is open, get a notice on take-off and landing.
- Direct link: flights over Slovakia.
Where positions come from and how fresh they are
The main source is the OpenSky Network; when it is unavailable, OKO loads aircraft from the adsb.lol and adsb.fi networks within about 460 km (250 nautical miles) of the camera. Military flights come from adsb.lol, type and route from adsbdb, and aircraft photos from Planespotters.net.
The browser asks for new positions every 30 seconds, every 15 seconds for military flights. Aircraft are drawn about 30 seconds behind real time and moved smoothly between known positions, so they do not jump. Coverage depends on volunteers running receivers — it is thin over the oceans and in some countries.
What OKO does not show
There are no airline liveries and not every flight in the world — only those the open receiver networks pick up. Route data are indicative. OKO tracks aircraft as objects, not passengers or crews.
At a glance
- Aircraft at once
- about 11–13 thousand
- Refresh
- every 30 s, military flights every 15 s
- Sources
- OpenSky Network, adsb.lol, adsb.fi
- 3D models
- by aircraft category, up close
FAQ
Is this the same as Flightradar24?
The principle is similar — positions from ADS-B broadcasts — but OKO shows them on a photorealistic 3D globe together with ships, satellites and other layers, and uses only open and community sources.
Why can I not see a particular aircraft?
Coverage depends on volunteer receivers and on whether the aircraft broadcasts ADS-B. There are gaps over the oceans and in some regions.
How often are positions updated?
The browser asks for new positions every 30 seconds. Aircraft are drawn about 30 seconds behind real time and moved smoothly between known positions.
Do I need an account?
No. An account is optional and only used to save followed flights.
Sources and licences
- OpenSky Network — non-commercial use
- adsb.lol — ODbL
- adsb.fi — non-commercial use
- adsbdb
- Planespotters.net — © photographers
These are the main sources for this topic; further sources and licences are shown right in the map.