JetBlue has been sued in a proposed class action claiming it uses customers' personal data to set ticket prices, after its response to a social media post raised concern that the carrier employed "surveillance pricing" to make flying more expensive. Surveillance pricing lets companies use browsing histories, locations and other personal data to set individual prices. The lawsuit followed an 18 April exchange on X where a passenger praised JetBlue but said "a $230 increase on a ticket after one day is crazy. ...