What does yellow vs blue mean on flight tracker?

Aircraft located using satellite data are coloured blue on the map, and yellow if located by terrestrial receivers.



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Our most asked question on social media: “What do the blue planes mean?” Blue planes indicate aircraft are being tracked by satellite-based ADS-B receivers. Read more at flightradar24.com/blog/satellite…

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On the map a coloured line shows the route of the aircraft. Purple colours indicate cruising altitudes. White colours indicate the plane is on the ground. As a plane takes off, the colours change from white, to yellow, to green, to light blue, to dark blue and finally to purple.

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If it is above 100 meters, the trail will be yellow, and with an increase in altitude, will be green, and so on. If the aircraft's position surpasses 2500 meters in altitude, the trail will be light blue, and will then change to dark blue, purple, and finally red for the highest possible altitude.

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@flightradar24. Hi James, the colored dots represent delay status: Green = on time, yellow = 15-45 min delay, red = 45+ min delay.

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Flightradar24 is the first flight tracking service which offers space-based ADS-B-tracking. The blue planes on the map are tracked from a satellite and the yellow ones are tracked from the regular earth-based radar stations.

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Red: When an aircraft is displayed as red that means that you are currently following that specific aircraft on the map or that an emergency squawk is on for this aircraft.

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@flightradar24. Our most asked question on social media: “What do the blue planes mean?” Blue planes indicate aircraft are being tracked by satellite-based ADS-B receivers.

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The position is calculated based on many different parameters and in most cases it's quite accurate, but for long flights the position can in worst cases be up to about 100 km (55 miles) off. In settings there is an option to set for how long time you want to see estimated aircraft on map.

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Travelers would be classified into one of three groups: green for good to go, yellow for investigate further and red for stop from flying.

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Hi Damaris, the blue arrow indicates your direction of view or movement.

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Flightradar24 Support center Below are the meanings behind these colors: Gray: The flight is scheduled and there isn't an additional status available. Green: The flight is estimated to be on time or arrived at time. Orange: The flight is estimated to be delayed or was delayed.

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Military aircraft in particular are exempt from many civil rules and regulations which would see most aircraft having an active transponder and of course their operational requirements will dictate they often do. That said, ultimately, any plane CAN disable it if they wish.

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Flightradar24 Support center
  • Each color indicates a different flight status. ...
  • Gray: The flight is scheduled and there isn't an additional status available.
  • Green: The flight is estimated to be on time or arrived at time.
  • Orange: The flight is estimated to be delayed or was delayed.


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The most tracked flight consists of 4.79 million trackings and was achieved by ZZ177 RAF Boeing C-17A Globemaster III, carrying Queen Elizabeth II's coffin, from Edinburgh, Scotland to London, England on 13 September 2022.

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Does FlightRadar show private planes? Yes, it does, but the data is limited. If an operator doesn't want their personal details published, FlightRadar will block out that information or even omit showing the aircraft directly related to high-profile individuals, like Air Force One.

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This is the code for a general emergency. 7700 can be entered into the transponder for a variety of reasons, and some of the most common include medical emergencies, engine failure, problems with pressurization or landing gear, issues with flight control, and more.

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