FlightAware Sues Kalshi, the Fight Over Who Owns Your Flight-Tracking Data, and Why That Little Airplane Icon Is Worth Suing Over

FlightAware, the flight-tracking company, has sued prediction-market operator Kalshi, alleging that Kalshi used FlightAware’s data and trademark to run betting markets on whether specific flights would be cancelled or delayed - without a license or permission. As reported by AeroTime, the case is far more than a corporate money fight: it tests whether aggregated flight data is a free-for-all or a licensed, owned product, and the answer will shape the tracking tools every pilot depends on.

What Is the FlightAware v. Kalshi Lawsuit About?

Kalshi is a prediction market - a platform where people place wagers on future events. Recently, some of those wagers have been on whether specific airline flights will be cancelled or delayed.

FlightAware alleges that Kalshi used FlightAware’s data and its trademark to operate those markets without permission. FlightAware’s position, as reported, is that it built and paid for the data pipeline behind flight tracking, and Kalshi took the output - along with the FlightAware name - to run a betting product.

An important caveat: this is a lawsuit, and these are allegations. Kalshi will have its own response, and a court will sort out the facts. The point here isn’t predicting a winner - it’s understanding why pilots should care.

Where Does Flight-Tracking Data Actually Come From?

The little airplane icon on your phone is the end product of a long supply chain. Much of that position data begins with Automatic Dependent Surveillance–Broadcast (ADS-B) - a system where an aircraft broadcasts its own GPS-derived position out into the world for any suitable receiver to pick up.

Airliners transmit it, and increasingly so do general aviation aircraft, because ADS-B Out has been required to fly in most busy U.S. airspace since January 2020.

From there, ground receivers pick up the broadcasts. Companies like FlightAware operate or tap into huge receiver networks, then blend that signal with airline schedules, gate information, and FAA feeds to produce the clean map you scroll while waiting to board. The airplane on screen is simple; the infrastructure and licensing behind it are not.

Why This Matters for Pilots

First, this is a fight over whether flight data is open or licensed - and that shapes your tools. Pilots, families watching a tail number come home, flight schools, controllers, dispatchers, and mechanics all lean on data moving freely. If courts draw a hard line around who can use aggregated tracking data and for what purpose, that line touches the entire ecosystem downstream - not just gamblers.

Second, there’s a privacy thread that has been building for years. A general aviation aircraft with ADS-B Out broadcasts its position in the clear by default, meaning anyone could historically watch any tail number go anywhere.

The pressure intensifies because of the betting angle. A prediction market that pays out based on whether a flight is cancelled has a direct financial incentive to obtain the most granular, real-time data possible. When money rides on a flight’s exact status, demand on the data supply chain climbs - and the questions about who may hold that data, and what they may do with it, get sharper.

How Can Pilots Keep Their Tail Number Private?

Pilots pushed back on open broadcasting, and the FAA, working with industry, built two programs owners can use today:

• Limiting Aircraft Data Displayed (LADD): lets an owner request that their tail number be filtered out of public tracking feeds.
• Privacy ICAO Address program: assigns an aircraft a rotating, anonymized identifier, making it harder to tie broadcasts back to a specific owner over time.

Both are available through the FAA. If you own an aircraft and have ever felt uneasy about the whole world watching where you fly, these tools exist and are yours to use.

The Bigger Picture: Aviation Data as a Commodity

Aviation generates an enormous amount of data - position, schedule, maintenance, and weather. For most of flight’s history, that information was purely operational: it existed to move aircraft safely from one place to another.

Now that same data has commercial value on its own. Traders act on it, analytics firms build products on it, and insurers price on it. The law is racing to catch up with questions nobody needed to ask when a flight strip was a literal piece of paper on a controller’s desk.

Expect more of these disputes, not fewer. As more aircraft broadcast more data, and more people find ways to profit from it, the tension between open information and owned information will only grow.

The Safety Angle You Can’t Ignore

ADS-B is broadcast openly for a reason: safety. Traffic awareness, search and rescue, and overall visibility to the system all depend on aircraft being seen by one another and by controllers.

Any move to lock data down has to be weighed against that. The goal isn’t to solve a commercial problem by making the sky less transparent to the people whose job is keeping it safe. That balance - openness for safety versus control for privacy and commerce - is the real thing to watch as this case moves through the courts.

What Should You Do Right Now?

Honestly, not much changes about how you fly tomorrow. You don’t need to alter your operations because of a pending lawsuit.

But keep an eye on it. If you own an aircraft, know that LADD and the Privacy ICAO Address program exist and are available through the FAA. And understand that the free, easy flight tracking most of us take for granted rests on a business and legal foundation that is still very much being argued over.

Key Takeaways

• FlightAware has sued Kalshi, alleging unauthorized use of its data and trademark to run prediction markets on flight cancellations and delays (reported by AeroTime).
• Flight-tracking data starts with ADS-B, required in most busy U.S. airspace since January 2020, then gets blended with schedules and FAA feeds.
• The case tests whether aggregated flight data is open information or a licensed, owned product - a question that affects every tracking tool pilots use.
• Aircraft owners can protect their privacy through the FAA’s LADD and Privacy ICAO Address programs.
• The core tension is openness for safety versus control for privacy and commerce, and it will only intensify as more aviation data becomes commercially valuable.