Make Google's AI watch airfare for you. Free.

Google says its AI Mode can track flight prices for you at no cost. The feature, described as watching fares across more than 300 airlines and booking sites, will email you when prices change for the specific route and dates you request. AI Mode works in more than 180 countries, but it can’t book tickets or reserve anything, and it won’t charge your card—travelers just stay logged into their Google account so the alert knows where to send updates. Users start at google.com, paste a prompt for round-trip flights, and confirm options shown. A separate add-on can check trips using airline miles, but booking still happens on the airline’s site.