Does Booking.com Have Price Alerts? Hotels vs Flights
Booking.com's own flight guide tells you to set price alerts. For hotels, you will be watching by hand.

Searching for Booking.com price alerts can blur two different decisions: when to buy a flight and when to reserve a particular room. Keep separate notes for them. A flight alert recommendation does not, by itself, establish that hotel alerts work the same way.
For a stay you already like, the useful starting point is a comparable record of the offer. You need to recognize whether a later result is genuinely better for your trip, including the cancellation terms and what the room includes.
Booking.com price alerts for flights: what the guide says
Booking.com's guide, How to find and book affordable flights, advises setting up flight alerts that notify you if and when the price falls within your budget. The guide supports that recommendation; we are not using it as evidence for an account-specific alert setup path.
It also says you can be more relaxed about domestic trips, while still suggesting buying flights several weeks before take-off. Treat that as general planning advice, rather than a promise that waiting will produce a lower fare.
For comparing routes, the guide describes a check box in flight search that allows results for multiple airports at once, and says results can be sorted by cheapest. Broader airport choices can help you compare options, but include the practical journey to and from each airport in your own decision.
Booking.com hotel price alerts: build a comparison you can trust
Until you have confirmed an accommodation alert option for your own situation, a manual checking routine is workable. The following steps are comparison advice, not descriptions of Booking.com menus or features.
Free cancellation changes the decision only when the terms allow it
A cancellable reservation may give you a way to secure an acceptable stay while continuing to compare. Read the conditions attached to the actual booking before relying on that approach. Identify the cancellation deadline, any applicable time zone, the payment arrangement and what happens after the deadline.
If a later offer looks better, compare its room, dates and terms against the existing reservation. Check that the replacement is available and understand its booking conditions before changing your original arrangement. Do not assume that a lower headline amount preserves the flexibility you already have.
Rebooking can also create administrative work. Keep the reservation confirmations distinguishable, check which booking remains active and retain any cancellation confirmation. Your comparison note should help you make a decision without creating uncertainty about where you are staying.
Stop waiting when the offer meets your budget and essential requirements, or when your own booking deadline arrives. That deadline might be tied to leave approval, coordinating with a travel companion or a cancellation window. It is a planning choice, not a prediction of the market.
Keep flights and accommodation linked in the plan but separate in the comparison. A better room offer is less useful if it requires travel dates that no longer work. Before committing, recheck that the parts of the trip still fit together.
Once booked, keep only checks that support a real decision. If you cannot or would not change the reservation under its terms, repeated price searches may add information without giving you a useful action.