Their own pages, read Oct 27, 2026
KAYAK, trivago or Google Hotels: which should you use for hotel prices?
Google Hotels, KAYAK and trivago all work for a first look: each lists many booking sites' prices for one hotel and dates. Then check the room: where a listing on Google Hotels was 5% or more below the going rate (September 25 to October 10, 2026), it named its room at 16% of those hotels.
To compare every site Google Hotels lists for your exact hotel and dates in one step, 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 →
What each one says it does
Quoted from each one's own pages, read October 27, 2026.
Google Hotels
"Hotel search on Google helps you discover, compare, and book accommodations for your trip." "Hotel prices come from Google partners like hotel owners, online travel agencies, metasearch engines, and other travel providers." "Hotels don’t pay Google to appear in hotel search results and can’t pay to influence their ranking." "If you click a booking link, you go to the partner website to complete your booking."
Google Travel Help, Search for hotels on Google, read October 27, 2026.
KAYAK
"KAYAK is a travel search engine, not a ticket seller." It says "we compare hundreds to thousands of travel sites in seconds". "Each provider sets its own prices, not KAYAK." "KAYAK doesn’t charge any extra fees." "Either way, the booking is with the provider, not with KAYAK."
KAYAK help, Search and discovery, read October 27, 2026.
trivago
"The trivago app is the easy way to search and compare hotel prices from your favorite booking sites"; "Compare accommodation prices from major booking sites with one search". Its app also offers price drop alerts: "Now you can sign up for price drop alerts on the trivago app to stay on top of price changes for your favorite hotels."
trivago on the App Store (seller trivago N.V.), read October 27, 2026. trivago.com, its help center and its company site answered our requests on October 27, 2026 with an error (HTTP 403), so the only trivago source here is its App Store listing.
Underbook (us)
A free browser extension and web price checker. It reads the booking sites Google Hotels lists for your hotel and dates, shows each price 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.
Measured, September 25 to October 10, 2026
KAYAK and trivago on Google Hotels itself
Google Hotels lists metasearch sellers beside the booking sites, among them KAYAK and a seller named "trivago DEALS". In our 16 price snapshots of September 25 to October 10, 2026 (6,620 hotel prices, a median of 12 sellers per hotel):
| Seller on Google Hotels | Listed at | Lowest of all | Names a room | Before tax |
|---|---|---|---|---|
| Booking.com | 90% | 413 | 85% | 8% |
| Expedia | 68% | 230 | 91% | 2% |
| KAYAK | 30% | 313 | 0% | 37% |
| trivago DEALS | 33% | 294 | 0% | 57% |
| The hotel's own site | 67% | 645 | 53% | 19% |
- Like with like against Booking.com at 1,098 hotels, KAYAK was more than 2% lower at 227 of 1,098 (21%), Booking.com at 159 of 1,098 (14%), and the two were within 2% at 687 of 1,098 (63%).
- Like with like against Booking.com at 1,052 hotels, trivago DEALS was more than 2% lower at 604 of 1,052 (57%) and Booking.com at 207 of 1,052 (20%). At 831 more hotels one of the two prices looked before tax and the other all-in (trivago DEALS' was the before-tax one at 811); those are left out.
- Neither KAYAK's nor trivago DEALS' listings named a room or carried Google's free-cancellation label in these snapshots; Booking.com's named a room at 85%.
So the three overlap: Google Hotels itself lists KAYAK and trivago DEALS at many hotels. Whichever you open, the lower number is a lead: read its room and its total on the site that takes the booking.
Listed at: share of the 6,620 hotel prices where Google Hotels listed that seller. Lowest of all: hotel prices where its listing was the lowest of every site. Names a room: share of its listings that carried a room name. Before tax: share of its listings that sat near the before-tax going rate, at the hotels where taxes added 10% or more. Like with like: before tax against before tax and all-in against all-in. A price's basis is inferred from the hotel's two going rates (one nearer the before-tax going rate counts as before tax), only where taxes added 10% or more; a genuinely lower all-in price can sit there too, so the hotels where the two prices looked different are left out, not counted for either site. Hotels whose taxes added 2 to 10% are left out because no price's basis can be read there. 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 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%.
How to use them together
- Search your hotel and dates on one of them, Google Hotels, KAYAK or trivago.
- Note the hotel's own site if it is listed, and the lowest price with its site.
- Open the lower listing and read its room name and cancellation terms.
- Compare totals with taxes and fees on the last screen of each site, for the same room.
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 reads the list Google Hotels shows for your dates, so KAYAK's price is on it whenever Google Hotels lists KAYAK.
Related questions
- A coupon extension is a different kind of tool: is there something like Honey for hotel prices?
- trivago and several of the sites it lists belong to one group; see which booking sites Expedia owns.
- When a tool lists a lower price, does that lower price hold on the booking site?
- For the 2026 holiday weeks at the same hotels, see the holiday hotel price study.
KAYAK, trivago and Google Hotels: common questions
Which is better for hotel prices, KAYAK, trivago or Google Hotels?
None is lower every time; each lists many booking sites for one hotel and dates and sends you to the site you pick to book. Google Hotels says hotels cannot pay to influence their ranking, and in our 16 snapshots of September 25 to October 10, 2026 it listed the hotel's own site at 67% of hotel prices. Whichever you use, compare the total and the room on the booking site.
Does Google Hotels show KAYAK and trivago prices?
Often. In our snapshots Google Hotels listed KAYAK at 30% of hotel prices and a seller named trivago DEALS at 33%, beside the booking sites.
Do I book on Google Hotels, KAYAK or trivago?
Usually not on the tool itself. Google says that if you click a booking link you go to the partner website to complete your booking, and KAYAK says the booking is with the provider, not with KAYAK. trivago's app listing describes comparing prices from booking sites.
Why is the price different when I click through?
A price can change between the search and the booking site, and some sellers list a price before tax. KAYAK says a price you see may no longer be available by the time you click through. Read the total on the last screen before you pay.
Is there a tool that checks whether the lower price is the same room?
Underbook does, for the sites Google Hotels lists: for your hotel and dates it says whether a lower listing names the same room as one at the going rate. In our snapshots such a match was found at 571 of 4,783 hotel prices with a listing 5% or more below the going rate.
Related answers
- Does Google Hotels show prices with taxes and fees?
- How can I tell if a cheaper hotel price is the same room?
- Is there a hotel price tracker that emails you when the price drops?
- Does KAYAK show prices with taxes and fees?
- Is Google Hotels accurate?
- Is there a browser extension that compares hotel prices?
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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