Summary
Flight-tracking company FlightAware has sued prediction market platform Kalshi in a New York federal court, alleging unauthorized commercial use of its flight data and trademark to run bets on airline cancellations. FlightAware, which operates the world's largest flight-tracking platform, filed the suit in the Southern District of New York seeking damages and an injunction against further use of its data and logo.
Key Facts
- FlightAware sued Kalshi in US District Court for the Southern District of New York on Monday
- Alleges unauthorized commercial use of flight data and trademark to settle cancellation contracts
- Seeks damages and an injunction against further use of its data and logo
- Kalshi started offering bets on flight cancellations July 14, same day it filed CFTC listing request
- Contracts let users bet on percentage of scheduled flights canceled during a period
- FlightAware alleges Kalshi agreed to terms barring commercial use via a fee AeroApi account (registered 2022)
- Kalshi denied violation, asserting "nominative fair use"
- Kalshi added a disclaimer that markets were not endorsed by FlightAware
- FlightAware argues betting on cancellations creates safety risks by incentivizing interference
- Kalshi faces separate lawsuits from New York, Wisconsin, Nevada over alleged unlicensed gambling
Why It Matters
The FlightAware lawsuit adds a new front to the legal challenges facing prediction markets, testing whether platforms may rely on third-party data and branding to settle contracts without a commercial agreement. This is distinct from the state gambling suits against Kalshi (New York, Wisconsin, Nevada) — it raises questions of data licensing, trademark infringement and consumer safety. The case could set a precedent for how prediction markets source and settle the data underlying their event contracts. For the fintech sector, the outcome matters because prediction markets — which have seen surging popularity and revenue — increasingly depend on third-party data feeds, and the legal uncertainty around that dependency could shape how these platforms operate and expand.