Delta denies using sensitive personal data to set fares, but critics argue the practice risks eroding consumer trust and may face regulatory hurdles, especially under Europe’s GDPR.Delta is testing personalized pricing on 3% of flights with plans to expand to 20%. It would tailor fares to individual customers rather than relying solely on market-based dynamic pricing.Sen. Mark Warner (D-Va.) criticized Delta Air Lines for using AI-powered “surveillance pricing,” warning it allows the airline to exploit pers ...