Measured Sep 25 to Oct 10, 2026
How can I tell if a cheaper hotel price is the same room?
Open the cheaper listing and the one you meant to book, and match the room name, beds, cancellation terms and total. Often it names no room: in Google Hotels prices of September 25 to October 10, 2026, a price 5% or more below the going rate named one at 775 of 4,783 hotels (16%).
To check a lower price for your own hotel and dates, Underbook's free hotel price checker shows the price each booking site lists on Google Hotels for that hotel and dates, and whether a lower listing names the same room: https://underbook.co/hotel-price-checker.
Free. No booking site paid for this page. If you book through Underbook we may earn a commission, which never changes which rate we show.
It sends the hotel name, its town, your dates and party size to our price service (privacy).
See the price on each site
How Underbook is free: if you book through a site we link to, we may earn a small commission from that site. It never changes which prices we show or their order.
Open this check on the full price checker, to share it or get an email if this stay gets cheaper →
Measured, September 25 to October 10, 2026
How often a lower price says which room it is
In our 16 price snapshots of September 25 to October 10, 2026 (6,620 hotel prices), some site listed the stay 5% or more below the going rate at 4,783 of 6,620 (72%), typically 17% below. That lowest listing:
- named a room at 775 of 4,783 (16%);
- named the same room as a listing at the going rate at 571 of 4,783 (12%);
- named no room at 4,008 of 4,783 (84%): a price you cannot match to a room without opening it.
| Site with the lower listing | Hotels | Named a room |
|---|---|---|
| Super.com | 1,224 | 0% |
| Vio.com | 519 | 18% |
| Traveluro | 377 | 0% |
| KAYAK.com | 294 | 0% |
| Agoda | 277 | 70% |
| trivago DEALS | 252 | 0% |
Some sellers name rooms in almost every listing; others in none:
| Seller | Listings | Named a room |
|---|---|---|
| Booking.com | 5,978 | 85% |
| Expedia | 4,517 | 91% |
| Hotels.com | 5,030 | 85% |
| Priceline | 4,995 | 36% |
| The hotel's own site | 4,425 | 53% |
| Vio.com | 3,774 | 10% |
| Super.com | 3,740 | 0% |
| KAYAK | 1,975 | 0% |
| trivago DEALS | 2,202 | 0% |
So the big booking sites usually say which room, while most listings 5% or more below the going rate came from sellers that rarely name one. That does not make them wrong, only unchecked: open them and read the room before you book.
A listing 5% or more below the going rate: the lowest price any site listed was at least 5% below the going rate (the price most sites agreed on). Named a room: that listing carried a room name. The same room name: its room name matched the room of a listing at the going rate. Each snapshot: the lowest public price each booking site listed on Google Hotels for a US searcher, in US dollars, for a two-night stay, at one moment; not completed bookings, and not member or signed-in prices. A hotel priced in more than one snapshot counts once per snapshot. Method, charts and the per-hotel CSVs: the hotel price study.
What the comparison tools show
Google Hotels, KAYAK and trivago list each site's price for your hotel and dates; the room behind it is on the site that takes the booking. KAYAK says: "Each provider sets its own prices, not KAYAK." Google asks you to "check the final cost of your room carefully". Sources: KAYAK help, Search and discovery and Google Travel Help, Search for hotels on Google, read October 27, 2026.
More on why the same hotel shows different prices: same room, different price.
What Underbook does differently
Underbook is built on the same list: for your hotel and dates it reads the booking sites Google Hotels lists (a median of 12 per hotel in our 16 price snapshots of September 25 to October 10, 2026). It does not search anywhere else. What it adds are three checks, with what they found in those snapshots (6,620 hotel prices):
Whether the lower price names the same room. At 4,783 of 6,620 (72%) hotel prices a listing was 5% or more below the going rate, typically 17% below. That listing named a room at 775 of 4,783 (16%), and named the same room as a listing at the going rate at 571 of 4,783 (12%). Underbook says which: "same room name", or that the lower listing needs a check before you book.
Taxes and fees as each site reports them. It shows each price all-in where the sites report taxes and fees (a resort or destination fee may be extra). That matters because sellers report differently: where taxes added 10% or more, KAYAK's listed price sat near the before-tax rate at 37% of hotels, Booking.com's at 8%.
The hotel's own site beside Booking.com. Google Hotels listed the hotel's own site at 4,425 of 6,620 (67%) hotel prices. Like with like against Booking.com, the hotel's site was more than 2% lower at 26% of 3,345 hotels and Booking.com at 13%; within 2% at 61%.
Five checks before you book a lower price
- Room name and beds: the same room type, bed count and view as the room you meant to book.
- Guests: the same number of adults, and children if any.
- Cancellation: free cancellation and non-refundable are different products at different prices.
- Board: breakfast included or not.
- Total: taxes and fees on the last screen, and any fee paid at the property.
Checking your own stay
Underbook is a free browser extension for Chrome, Edge and Firefox, and a free web price checker. For a hotel and dates it shows the price each booking site lists on Google Hotels, all-in where the sites report taxes and fees (a resort or destination fee may be extra), and says whether a lower listing names the same room or needs a check before you book. You always book on the site you choose. It says "same room name" only when the lower listing's room name matches a listing at the going rate.
Same room or not: common questions
How can I tell if a cheaper hotel price is the same room?
Open both listings and match the room name, beds, guests, cancellation terms and the total with taxes and fees. Often the cheaper listing does not name a room: in our 16 snapshots of September 25 to October 10, 2026, a price 5% or more below the going rate named its room at 775 of 4,783 hotels (16%).
Why is the same hotel cheaper on another site?
It can be a different rate: another room, non-refundable terms, no breakfast, or a price shown before tax. It can also be the same room at a lower price. The listing's room name and terms tell you which.
Do Google Hotels, KAYAK and trivago show the room?
They list each site's price for your hotel and dates; the room behind a price is on the site that takes the booking, so open it before you book.
Is a lower price with no room name a scam?
Not necessarily; it is unchecked. Open it, read the room and the terms, and compare the total before you pay.
Can Underbook tell me if it is the same room?
It says whether a lower listing names the same room as one at the going rate, for the sites Google Hotels lists. In our snapshots that held at 571 of 4,783 hotel prices with a listing 5% or more below the going rate; the rest it marks as needing a check.
Related answers
Real prices, hotel by hotel
Every site's price at 5,970 hotels in 368 cities
From our price snapshots of September 25, 2026, September 28, 2026, September 29, 2026, September 30, 2026, October 1, 2026, October 3, 2026 and October 10, 2026: each hotel's page lists every booking site Google Hotels showed, the going rate, and whether the lowest-priced listing named a room, with a button to check today's price for your own dates.
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See every site's price for your own stay.
Underbook compares the price for your hotel and dates across the booking sites Google Hotels lists, all-in where the sites report taxes and fees, and says whether a lower listing names the same room. Free, and you always book where you choose.
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