Flight, hotel, and car rental metasearch engine owned by Booking Holdings. US and European market leader in metasearch.
Kayak data shows flight searches to World Cup host cities spiking overnight after knockout results, with Miami up 200% and quarterfinal cities seeing the sharpest jumps yet.
KAYAK has launched Ask AI, a conversational search tool that lets travelers plan trips through natural-language questions across flights, hotels, and car rentals. It is available to all users in the US, UK, and Canada.
KAYAK search data shows flight demand to Kansas City is up 136% year-over-year ahead of the 2026 FIFA World Cup, with hotel rates in secondary host cities like Kansas City (+115%) and Philadelphia (+70%) seeing the steepest increases.
Booking Holdings grew room nights 6% and revenue 16% in Q1 2026, though the Middle East conflict clipped an estimated two percentage points off growth. Adjusted EBITDA rose 19% to $1.3 billion.
KAYAK launched Ask AI, a conversational travel search tool that updates live flight, hotel, and car results in real time alongside a chat interface, marking a first in travel metasearch.
Kayak's AI Mode, launched in October 2025, is the clearest signal yet of how intent-driven queries are rewriting metasearch — and it lands as the company prepares for life after Steve Hafner.