FlightAware is suing Kalshi for allegedly misusing its data and trademarks in connection with betting markets for flight cancellations.

FlightAware has taken legal action against Kalshi, a platform that operates prediction markets, claiming the company improperly utilized its flight-tracking data and trademarks to facilitate bets on airline cancellations.
The lawsuit, lodged in federal court in New York, targets four entities: Kalshi Inc., KalshiEX LLC, Kalshi Klear Inc., and Kalshi Klear LLC. FlightAware seeks both damages and a court order to prevent any further use of its data and branding related to cancellation betting.
According to the complaint, Kalshi has been leveraging FlightAware’s data and name to operate gambling markets concerning flight cancellations. FlightAware asserts that despite having a legally binding agreement that prohibits the use of its data for commercial ventures—including gambling—Kalshi allegedly continued its activities even after being advised to stop.
Kalshi started offering aviation-related prediction markets in July, inviting users to wager on cancellations across various U.S. airports. These markets reportedly referred to FlightAware as the “Primary Source Agency,” utilized its trademark, and claimed results were “verified from FlightAware,” raising alarm bells for the flight tracking service.
FlightAware became aware of the situation after media inquiries regarding Kalshi's markets compelled them to take action. The company argues it never sanctioned the association of its brand and data with any gambling schemes.
Continued Use of Data Amid Objections
The lawsuit highlights that Kalshi had created a complimentary AeroAPI account in July 2022, bound by terms that prohibited commercial usage. Allegations suggest that a Kalshi employee opened another account with FlightAware just prior to the first cancellation betting markets being launched.
In response to the misuse of its data, FlightAware terminated Kalshi’s AeroAPI access and promptly sent a cease-and-desist letter. The lawsuit contends that Kalshi denied any wrongdoing, claiming its references to FlightAware's data fall under nominative fair use. FlightAware counters that disclaimers were only added after the controversy erupted.
This ongoing dispute follows previous scrutiny regarding Kalshi's utilization of sports-related branding. In February, reports emerged that the NCAA had urged Kalshi to cease using its trademarks in markets tied to March Madness betting. The NCAA's concerns stemmed from unauthorized use and implications surrounding betting on college sports.
Meanwhile, branding disputes continue to plague Kalshi. Recent observations note Kalshi’s ongoing reference to “NCAA” in its college-football markets, although logos have been removed, suggesting ongoing tension with third-party intellectual property rights.
Furthermore, FlightAware has raised concerns that Kalshi considered alternative data sources, pointing to a Commodity Futures Trading Commission document that references the U.S. Department of Transportation's Bureau of Transportation Statistics in case FlightAware ceased its operations.
The legal complaint states there was notable public backlash, with concerns that such betting markets might encourage unsafe practices to engineer flight cancellations, jeopardizing safety and disrupting air travel. FlightAware asserts that because of Kalshi's use of its trademarks and data, many assumed a false association with the betting scheme, thereby compromising its reputation for neutrality in the industry.
To clarify, FlightAware emphasizes it has never been involved in any betting schemes pertaining to flight delays or cancellations. As of now, Kalshi has not responded to the allegations detailed in the complaint.
Potential Implications and Industry Reactions
This lawsuit could set significant precedents in the intersection of data usage and gambling regulations. If the courts favor FlightAware, it may embolden other companies to protect their intellectual property with greater vigilance, especially those that find their data or brand being misappropriated in high-stakes environments like betting.
Kalshi's approach to utilizing data has raised eyebrows before, particularly in its dealings with the NCAA, where it's clear that the platform has taken creative liberties that some industry observers might find troubling. There's a tension here that's hard to ignore: how innovation in betting markets must wrestle with existing legal frameworks and the intellectual property rights of data providers.
The very notion of gambling on flight cancellations is unsettling. This isn’t just about revenues; it's about public perception and safety. The implication that someone may intentionally cause cancellations for financial gain is not fiction. It's a dystopian thought, and you have to wonder what this means for the integrity of the air travel industry. If you're working in this space, the stakes are particularly high.
FlightAware's case is a warning, not just to Kalshi but also to others treading a fine line between utilizing data responsibly and infringing upon intellectual property rights. The outcome could inspire a shake-up in how companies negotiate their data-sharing agreements. And yet, if the public perceives that data is being used against their interests—especially when safety is at stake—it could damage trust in these platforms irreparably.
Featured image: Kalshi / Canva
The post FlightAware Challenges Kalshi Over Unapproved Use of Flight Data in Cancellation Betting appeared first on ReadWrite.
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