“The consumer effectively gains the opportunity to monitor the market,” Mareike Mohlmann, chair of AI and business at Bentley University in Waltham, Massachusetts, wrote in an email. “It is a small but meaningful shift from A.I. AdvertisingWhile tracking fare changes yourself remains free, most AI services charge a fee. HotelsMindtrip StaysHow it works: Like an AI assistant, Mindtrip can plan your journey from inspiration to flight, hotel and event bookings. Flights and hotelsAutopilotHow it works: Autopilot applies AI speed to both flight and hotel reservations.