Frequently asked questions
I was following an aircraft when it suddenly disappeared, why?
In most cases the reason is that the coverage from the surrounding receivers has been lost. It can also be a technical problem somewhere. Coverage at the same spot can be different depending on data source and aircraft type.
Can you help me find a flight?
Find flights by searching for a flight number, callsign, or registration. There may be several reasons why a flight cannot be found. Either it has not taken off yet or has already landed. Also, not all aircraft are equipped with the correct transponder to be tracked by Flightradar24, or the flight could be flying outside our coverage area.
We are unable to assist in searches for individual flights or aircraft.
Do you know why a flight is or was delayed?
In some cases, we receive advance delay information, but we do not have any information about reason for the delay. For all questions about delays please contact the airline or airport directly. We are unable to issue flight delay certificates.
Is it possible to see playback of past flights?
Yes, playback is available for individual flights in our mobile apps. To see individual flight histories, select or search for a flight or aircraft and choose the particular flight that interests you.
How far back in time you may go depends on your subscription level. All users have free access to 7 days of flight history, Silver subscribers may access 60 days, Gold subscribers 180 days.
We are unable to assist in searches for historical flights.
What is the difference between a callsign and a flight number?
There are two main international aviation organizations. The International Civil Aviation Organization (ICAO) and the International Air Transport Association (IATA). ICAO is a part of the United Nations and is responsible for navigation and technical issues related to flight. IATA is a trade association responsible for managing commercial flight areas, such as flight tickets.
That means that in most cases a passenger airline ticket is sold with IATA standards/rules, for example DL-flight number from LHR to JFK, but the pilot is flying the aircraft with ICAO standards/rules, which means flying with callsign DAL from EGLL to KJFK. Most airlines have both a three-letter ICAO code (used for callsign) and two-letter IATA code (used for flight number).
Charter airlines and business jet operators in most cases only have a 3-letter ICAO code (used for callsign) as they are not selling tickets and don't need a flight number. Small/Private aircraft in most cases don't have an airline code and use their registration as callsign. Most airports in the world have a 4-letter ICAO code but, generally only airports handling passenger traffic have a 3-letter IATA-code.
What are the blue points on the map?
The blue points mark airports with regular and daily scheduled passenger traffic in areas where Flightradar24 normally has coverage. You can click on an airport marker to get an arrival or departure board for that airport or see information about aircraft currently on the ground. Detailed current weather information for the airport is also available. Airport marker visibility may be adjusted in settings.
Why aren't all airports marked with a blue point?
There are many thousands of airports around the world. Showing all airports would completely cover the map in airport pins. The primary feature of the blue point is the possibility to click and show the arrival & departure boards. In order to keep the map clean we only plot airports with regular and daily scheduled passenger traffic.
Why is there a flight missing from the departure or arrival board?
Flightradar24 combines data from several sources including schedule and flight status databases from airlines and airports around the world. These databases includes most regular and scheduled flights but some minor airlines and charter airlines may be missing. Flightradar24 is working continuously to acquire as much route data as possible.
Why is the route information incorrect?
The route is not transmitted from the aircraft. We are receiving the callsign of the flight from the aircraft and comparing it with large databases of airline and airport schedules to find the matching flight number. Once the callsign is matched to a flight number, we are able to show the route of the flight. A few reasons why a route may be incorrect:
- Changed flight plans
- Wrong or old callsign typed into the transponder
- Error in some of the schedule databases
- Long flight delay, which makes the schedule data match against wrong flight
Why don't you show routes for all flights?
The route is not transmitted from the aircraft. We are receiving the callsign of the flight from the aircraft and comparing it with large databases of airline and airport schedules to find the matching flight number. Once the callsign is matched to a flight number, we are able to show the route of the flight. Routes may be missing if an airline has not submitted a flight schedule or we have failed to make a match for some reason, for example due to incorrect callsign or a severely delayed flight. Many delivery, positioning and charter flights may be missing route information as this data is often missing in the databases that we use. We are working continuously to acquire as much route data as possible.
Why can’t I see certain oceanic tracks?
The North Atlantic tracks are not active 24 hours a day and are shown during periods of track validity. The day-time (westbound) tracks are valid from 11:30 UTC to 19:00 UTC. Night-time (eastbound tracks) are valid from 01:00 UTC to 08:00 UTC. The text for the current North Atlantic Tracks may be viewed here.
Why did it look like the aircraft landed outside the runway? Has it crashed?
An aircraft’s ADS-B transponder is transmitting the position from the on board flight computer, which in most modern aircraft comes from GPS data and is very accurate. On some older aircraft (for example some older A300, B737, B757, B767 and RJ100) the position is calibrated on ground before take off and after that the current position is calculated based on speed and direction of the aircraft. When flying for some time, in wind or in circles, the calculation becomes increasingly worse, which at landing can give position calculations that are up to 10 km incorrect.
Why is aircraft data incorrect or missing?
Flightradar24 has an extensive database detailing aircraft registration, Mode S address, age, aircraft type and more. Due to the large volume of data and continual updates there are occasionally minor inaccuracies.
I own an aircraft but I cannot see it on Flightradar24. What can I do to have it displayed on Flightradar24?
There are a few reasons why your aircraft may not be shown. First, the aircraft may not be fitted with an ADS-B transponder meaning it is not compatible with our receiver network. Second, if the aircraft is fitted with a Mode S transponder and not visible, it may be flying in areas with little or no MLAT coverage. Third, the aircraft might be flying outside of our network in areas where we have little or no ADS-B coverage. Fourth, the aircraft might be blocked. By default we block sensitive aircraft such as those associated with military or governmental operations. For private aircraft, we can block flight tracking information at the owners request. For enquiries about aircraft blocking and unblocking, please contact us.
Why don't you have coverage in my area?
Flightradar24 coverage is only available in areas where someone has installed an ADS-B receiver and shares data with the Flightradar24 network. We are unable to provide coverage in areas where no ADS-B receivers are installed.
How can I increase coverage in my area?
Much of the coverage on Flightradar24 is based on flight data from so called ADS-B receivers around the world. If you want to improve the coverage in your area, you can apply to host a free receiver from us on the Flightradar24 website. If you already own an ADS-B receiver, you'll find instructions for how to share your flight data with Flightradar24 on our website.
Can you cover my area please?
We’re progressing towards our goal of global coverage. You can help us achieve that goal by hosting an ADS-B receiver. To learn more about how you can host a receiver, see 'How can I increase coverage in my area?' above.
What is the coverage area of an ADS-B receiver?
Coverage depends on many different factors. The antenna needs to be placed as high as possibly with free visibility in all directions. Normally the coverage is about 150-250 km in all directions, but it's possible to have up to about 400 km of coverage with a well-placed installation.
Last week Flightradar24 had coverage in my area, but not any more. Why?
Flightradar24 is a network of receivers around the world. Some receivers are online 24/7 and others are only online from time to time. There are many reasons why a receiver could be offline. There can be a technical problem with the receiver, antenna, or Internet connection. There is also a possibility that the owner of the receiver has closed down their receiver. With over 13,000 receivers connected to the network, Flightradar24 cannot tell why different receivers are offline, and when they will be back online. If you want to ensure coverage in your area, see 'How can I increase coverage in my area?' above to learn about hosting a receiver.
Who produced the side views that show up for certain aircraft?
Nicholas Knapp at airlinersillustrated.com
Why is the registration on the side view image visible for blocked aircraft?
The side views are an illustrated example of the aircraft model and the visible registration is just an example. The actual registration of the aircraft is not shown.
Where do the photos of aircraft displayed on Flightradar24 come from?
Photos displayed for each aircraft come from JetPhotos. If you’d like your photos to appear on Flightradar24, please submit them to JetPhotos.
How can I purchase a Flightradar24 subscription on Flightradar24.com?
To purchase subscriptions directly through Flightradar24.com, visit our subscription page and select the plan with the features right for you. You'll begin by creating an account with an email address and password and then provide payment details. You'll begin your subscription with a 7-day free trial.
How can I manage my subscription purchased directly through Flightradar24.com?
To manage your subscription, please click on the top right menu. On this menu you will find a link to billing. From the billing page you view next billing date, billing history as well as the ability to change payment option.