Book hotelswhen they're cheapest.

No. We don't sell rooms, take payments, or earn hotel commissions. We show when hotels are usually cheapest in a city, then you book wherever you prefer.

We use prices from online travel agencies (OTAs). Every day we scan thousands of hotels and request one-night stay prices for the next 365 check-in dates. We save those observations in our database and use them to build the charts.

Lowest prices are often one-off deals, errors, or rooms few travelers would choose. Median prices smooth out those outliers and better reflect what a traveler is likely to see across normal hotel inventory.

We currently cover 240 cities. In 22 of them, we track prices from more than 30 hotels.

Our data is currently weighted toward luxury and upscale hotels, so median prices can look higher than a typical citywide hotel average. We track brands such as Ritz-Carlton, Waldorf Astoria, Four Seasons, Fairmont, and similar properties, many of which participate in preferred partner or perks programs like Hilton for Luxury and Marriott STARS. We're adding more hotels over time to make the charts more representative.