New Delhi, Aug. 25 -- FlightAware thought it was in the business of tracking planes. Now it is in federal court against the company that turned its proprietary data into a market where people bet on whether those planes would land on time.

but hardly the first. Kalshi has spent much of 2026 defending itself against state attorneys general who call its event contracts illegal gambling, a battle that has already drawn the Commodity Futures Trading Commission into emergency interventions and produced federal lawsuits against nine states.

The FlightAware suit introduces a different kind of exposure: intellectual property. FlightAware's complaint alleges that Kalshi incorporated proprietary flight delay and cancellation data into prediction ...