You want to watch a plane move across a map right now, for free, without giving anyone a credit card or making an account. The best answer is Flightradar24’s free version: open the site, search a flight number, and see its live position on a map. No account, no card, no time limit on the live view.
Where the live data comes from
Every flight tracker you see on a public site is pulling from the same kind of source: a global, volunteer-run network of radio receivers on the ground. These receivers pick up Automatic Dependent Surveillance, Broadcast (ADS-B) signals that aircraft broadcast constantly, position, altitude, speed, and identity. The receivers send that data to a central server, and the tracker maps it. Some providers also pull data from airport radar feeds, airline schedules, and other sensor networks. What you see on your screen is a composite of those signals, but only where the network has a receiver. Over the ocean or in remote areas, the trackers show nothing or rely on estimated positions from flight-plan data.
The free options that actually work
Flightradar24
The free version of Flightradar24 shows real-time flight tracking, aircraft details, flight routes, and seven days of historical data. You do not need an account to watch a flight move across the map right now. The site does not ask for a card for this tier, and there is no trial that expires into a paid plan, the free version is a permanent limited offering. Coverage depends entirely on where their receiver network and data partners have coverage, so a flight over the Atlantic might disappear for a while. If you want to see how the free trial for the paid plans works, the support page at support.fr24.com explains the details, but you do not need that trial for basic live tracking.
FlightAware
FlightAware has a free account tier. That account gives you basic historical data limited to three months and lets you follow flights. The sign-up page does not ask for a payment card for the free account. If you happen to own an ADS-B receiver and feed data to FlightAware, they give you a free Enterprise account as a reward for contributing. For most people just wanting to watch one flight right now, the free account works, but you do have to register an email and a password. That is the only cost: a few seconds of typing. The company’s own blog at blog.flightaware.com describes the feeder-reward program if that interests you later.
OpenSky Network
OpenSky Network is not a consumer flight tracker in the same way. It is a research-oriented platform. Full data-set access is free only for research institutions, aviation authorities, governmental organizations, and other non-profit organizations. However, the FAQ states that many datasets are available for private individuals for personal learning and research use. You need an account to access the platform, and eligible institutions must apply with an affiliated email address. There is no payment card requirement. If you are a hobbyist who wants to download raw flight data to analyze yourself, this is the option. If you just want to see a plane on a map right now, use Flightradar24 instead, OpenSky is not built for that casual workflow.
The thing people get wrong about flight tracking
The most common mistake is thinking the tracker sees everything. It does not. Public trackers can only show flights that are covered by their own receiver networks and data partners. Coverage and detail vary by place and flight. A flight over central Europe will show up on every tracker with high precision. The same flight over the middle of the Pacific might vanish for hours. The trackers are not hiding information; they simply do not have a receiver in that spot. Another mistake is assuming the free version is a trial that will expire. Flightradar24’s free version is not a trial, it is a permanent limited product. You can use it indefinitely without paying. The paid plans add features like more historical data and fewer ads, but the live map never stops working.
What to check before committing to one service
If you are trying to follow a specific flight, check whether that flight’s route passes through areas with good receiver coverage. A flight between two major cities in Europe or North America will be easy to track on any service. A flight from a small island to another small island might appear only sporadically. You can test this quickly: open Flightradar24’s free version, search the flight number, and see if the track appears. If it does not, try FlightAware’s free account, sometimes one network has a receiver where another does not. Neither service costs you anything to test. Do not bother signing up for OpenSky for this purpose; it is not designed for point-and-click flight following.
Frequently Asked Questions
Do I need to create an account to use Flightradar24’s free version?
No. You can open the site and search a flight without any account. The free version is available immediately. Some features, like saving favorite flights, require a free account, but basic live tracking does not.
Will the tracker show military or private flights?
Only if those aircraft broadcast ADS-B signals and a receiver picks them up. Many military aircraft turn off their transponders or use different signals that public receivers cannot decode. Private planes often broadcast normally, so they appear on the map like any other flight.
Why did the flight disappear from the map mid-journey?
The flight left the coverage area of the receiver network. Over oceans or remote land, there are fewer receivers, so the tracker loses the signal. The plane is still flying; the tracker simply has no data to show. It will reappear when it comes within range of another receiver.
Can I see historical flight data for free?
Flightradar24’s free version gives you seven days of historical data. FlightAware’s free account gives you three months. OpenSky offers some historical datasets for personal research use, but not through a simple map interface. If you need older data, you would need a paid plan or a research affiliation.
Is there a catch to the free version of Flightradar24?
The catch is that the free version is limited. You see ads on the page, you cannot filter by all the same parameters as the paid version, and you only get seven days of playback. The live tracking itself is unrestricted. No card, no trial expiration, no hidden fee.
The tool itself, free: Flight-tracker.net.
Where this fits
This is one guide from Free Online Tools for Checking Your Internet Connection.
