KAYAK Reveals 2024 Summer Travel Forecast & Top Trending Destinations STAMFORD, Conn., May 7, 2024 /PRNewswire/ -- The 2024 travel forecast is looking sunny with a chance of savings. Despite increasing inflation, according to the latest internal data from KAYAK, the world's leading travel search engine, airfare is down 13% for domestic and 3% for international flights vs. 2023. To help travelers score a deal and figure out where to go, KAYAK's Travel Check- In: Summer 2024 report offers data-driven insights ...