Kayak introduces flexible‑date search and price‑alert tools for cheaper flights

Kayak’s flexible‑date flight search lets users compare fares across a range of departure and return dates, typically +/- three days. The feature displays a colour‑coded price calendar—green for the cheapest days, yellow for average prices, and red for the most expensive—so travelers can quickly spot the best dates to fly.

The platform also offers a price‑alert service and a price‑prediction tool. The price‑alert notifies users by email or smartphone when a monitored flight’s price rises or falls, while the prediction tool uses historical data to estimate whether a fare is likely to increase or decrease, helping users decide whether to book immediately or wait.