About HotelMonitor

Built by one person who got tired of overpaying for hotels.

Hi — I'm Michael, and HotelMonitor is a one-person project run from the UK.

It exists because hotel prices quietly move after you book — often downwards — and the booking sites have no interest in telling you. Most hotels let you cancel free and rebook at the lower rate, if only you knew. So I built the thing that knows.

There's no growth team, no venture capital, no dark patterns — just a scanner that checks hotel prices around the clock and emails you when one moves in your favour.

How we verify a saving

Every deal on this site has to survive the same checks. This is exactly how the pipeline works — no marketing gloss:

1

Prices are re-checked every 4 hours

We scan the major booking sites (Booking.com, Expedia, Agoda, Hotels.com and others) across 29 destinations and roughly 6,000 hotels, day and night.

2

Every hotel is compared against its own history

A "deal" here means the price is below that specific hotel's usual rate — a rolling record of real prices we've observed for the same month and stay type. Never against a made-up RRP.

3

Taxes are normalised before comparing

Some booking sites quote before tax, some after. We gross everything up to a like-for-like, tax-inclusive figure first — so a "cheaper" price is genuinely cheaper at checkout.

4

Suspicious prices are thrown away

A rate far below anything we've ever seen for that hotel is usually a data glitch, not a bargain. Our outlier gate rejects it rather than sending you a too-good-to-be-true alert.

5

Savings claims are capped

Even when the maths says "−83%", we display at most "65%+" — if a number looks unbelievable, it doesn't help you and it doesn't help us.

How we make money

When you book through a link on this site, the booking site pays us a small commission. The price you pay is identical either way — we never mark anything up, and alerts go out whether or not there's a commission in it for us.

That's the entire business model. No subscriptions, no selling your data, no ads.

Start watching a hotel — it's free →