Honest review
Is Kayak legit?
Yes, but it's a search tool, not the store.
Kayak is a real, established metasearch engine owned by Booking Holdings, the same parent as Booking.com, Priceline, and Agoda. The prices it shows are genuine quotes pulled from other sites. The part people miss is that Kayak usually doesn't sell the room itself. It gathers prices and then sends you to a booking site or the hotel to actually pay, and that final site is where taxes, fees, and currency can move the number. Here is the honest breakdown, and how to check whether a given price actually holds up.
To see whether the price Kayak shows is the lower one for your exact 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. We make Underbook: if you book through its link we may earn a commission from the booking site, at no cost to you, which never changes which prices it shows.
We have no affiliate relationship with Kayak. This isn't a referral pitch. We surface whichever site has the cheaper rate, and say whether it names your room.
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 →
The verdict, in plain terms
Legit and useful as a starting point, but the price you see is a preview, so confirm the all-in total at the site that actually takes your payment.
Where Kayak is genuinely good
- Real, major metasearch backed by Booking Holdings
- Fast way to scan many sites at once for a starting price
- Handy filters, maps, and price trend hints
- Good for getting a feel for the going rate
Where you should be careful
- It doesn't sell the room, it hands you off to another site
- The final total is set at that site's checkout, not on Kayak
- It shows sponsored placements alongside organic results
- It may miss some sites and the hotel's own member rate
Why is the price different when I go to book?
This is the complaint that makes people wonder if Kayak is trustworthy, and the answer is mostly boring, not shady. Kayak is a metasearch engine: it collects prices from booking sites and hotels and shows them side by side, but it doesn't take your payment. When you click a result, it sends you to that site, and the final all-in total is calculated there, where taxes, resort fees, service fees, and currency conversion get added. Inventory can also shift between your search and your click, and some results are paid placements.
So the Kayak number is real, it's just a preview rather than a promise. That's a fine way to find candidates fast, and a poor way to know the exact price you'll pay. The number that matters is the all-in total for the same room, on the site that actually books it, and Kayak by design doesn't show you that until you leave. The same preview-versus-checkout gap applies to every metasearch, including Skyscanner and Kayak's own sibling momondo. In 14 snapshots of our hotel price study (September 25 to October 1, 2026), KAYAK.com and momondo.com listed the same price before tax, to the dollar, at all but one of 938 hotels where both appeared on Google Hotels, and KAYAK.com and Hotelscombined.com, a third Booking Holdings search site, matched at all 1,045. That is the signed-out listed price, not a room-by-room check. So checking momondo after Kayak adds little.
Before you trust a Kayak price, check three things
- 1. Who actually books it. Note which site Kayak sends you to, since your payment, confirmation, and support come from there.
- 2. The all-in total. Compare the price after taxes and fees, in your own currency, not the preview shown on Kayak.
- 3. The room and terms. Confirm it's the same room type and read the cancellation policy before you pay.
Measured, September 22 to October 10, 2026
How often Kayak had the lowest price, across 17 price snapshots
Across 17 snapshots taken between September 22 and October 10, 2026, we priced the same two-night stay on every booking site Google Hotels lists: 7,044 hotel prices in 368 cities. At 5,114 of them some site undercut the going rate by 5% or more. Kayak was the lowest-priced site at 305 of those 5,114, typically 11% below the going rate, and at none of those 305 did it name the room its price was for. For comparison, Super.com was the lowest-priced site most often (1,340 hotels) and named a room at 0.
So a Kayak price that beats everyone is worth opening, but compare the room name and cancellation terms before you pay.
Cancellation labels, 16 snapshots, September 25 to October 10, 2026: Google Hotels showed no free-cancellation label on its listings at any of the 1,975 hotels where it was listed. Is free cancellation worth it?
Each snapshot: US market, USD, before-tax prices from one moment, not completed bookings. Method, charts and the per-hotel CSVs: the hotel price study.
How to check the price yourself
The honest way to know if a Kayak result is really lower is to compare it, the all-in total for the exact same room and dates, against the hotel's own site and one or two other booking sites, and to read the cancellation terms alongside the price. Kayak is great for finding candidates quickly, but it stops short of confirming the final total on the site that actually takes your money, which is the number that decides whether you paid less.
Underbook is a free browser extension that does that last step for you while you shop. When you're looking at a hotel, it checks other booking sites for the same hotel and dates and shows you the prices side by side (all-in when the sites report taxes and fees) and says whether the cheaper listing names the same room. When the room names don't match, it says to check before booking instead of pretending. We earn nothing from Kayak. We just show whichever rate is lower.
KAYAK against other sites, head to head
How KAYAK's prices compared with Expedia at the same hotels, from our own price snapshots: KAYAK vs Expedia.
Checking the sites yourself
More answers
Kayak: common questions
Is Kayak a scam?
No. It's a real, established metasearch engine owned by Booking Holdings, and the prices it shows are genuine quotes from other sites. The frustration people report is almost always about the handoff, the final total changing at the site Kayak sends you to, or booking with an OTA you didn't expect, rather than the price not existing. Note who actually books the room and confirm the all-in total there, and you avoid the most common complaints.
Do I book directly on Kayak?
Usually not. For most hotel results Kayak passes you to a booking site or the hotel to complete the reservation, so your payment, confirmation, cancellation, and support come from that final site. Kayak does have its own booking flow in some cases, but the default experience is metasearch. Always check who the merchant is before entering your card.
Why did the price go up after I clicked?
The Kayak result is a preview pulled from another site, and the final total is calculated when you arrive there. Taxes, resort fees, service fees, and currency conversion can be added at checkout, and inventory can change between the search and the click. It usually isn't a bait-and-switch, it's the all-in total appearing at the point of sale. Check the full breakdown before you approve the charge.
Does Underbook get paid to recommend Kayak?
No. We have no affiliate relationship with Kayak. This page isn't a referral pitch, it's an honest answer to a question a lot of travelers ask. Underbook surfaces whichever site has the cheaper rate, says whether it names your room, and shows the lower price even when it earns nothing from it.
Other comparison sites
KAYAK is not the only site that compares prices. trivago works the same way and also runs its own booking site, trivago DEALS: trivago vs Expedia, trivago vs Booking.com and trivago vs Hotels.com. KAYAK's own price next to its sister booking sites, on the same tax footing: KAYAK vs Booking.com (KAYAK was cheaper a little more often than Booking.com) and KAYAK vs Priceline (KAYAK was cheaper a little more often than Priceline); its price on Google Hotels was often before tax. And Google Hotels listed a median of 17 booking sites per hotel in our data: which booking sites Google Hotels shows.
Other search sites on Google Hotels
Google Hotels also lists smaller search sites next to the booking sites. goSeek and Etrip.net name FindHotel B.V., the company behind Vio.com, and showed Vio.com's price at most hotels in our data (our reviews: Is goSeek legit? and Is Etrip.net legit?). HomeToGo, a Berlin search site, matched another listed site's price at 1,518 of 1,722 hotels (Is HomeToGo legit?). HotelsCombined, which Booking Holdings bought in 2018 and which reports into KAYAK, showed the same price as KAYAK.com at all 1,045 hotels listing both (Is HotelsCombined legit?). Wego, run by Wego Pte Ltd, a licensed Singapore travel company, was listed at 463 hotels (Is Wego legit?).
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.
Some hotels where KAYAK had the lowest price we found, 5% or more below the going rate (each page shows every site's price):
- Comfort Inn Glenmont - Albany South, Albany New York: 17% below the going rate
- Homewood Suites by Hilton Burlington, Burlington Vermont: 8% below the going rate
- La Quinta Inn & Suites by Wyndham Fredericksburg, Fredericksburg Texas: 10% below the going rate
- Krabi Seabass Hotel, Krabi: 62% below the going rate
- La Quinta Inn & Suites by Wyndham New Haven, New Haven: 23% below the going rate
- DoubleTree by Hilton Hotel San Jose, San Jose: 20% below the going rate
By region: United States · Europe · Canada, Latin America, Caribbean · Asia-Pacific, Middle East, Africa
Start with a city: New York · Las Vegas · Orlando · Chicago · London · Cancun · Los Angeles · Miami · Fort Lauderdale · Nashville · New Orleans · Paris · Punta Cana · San Francisco · Honolulu · Charleston · Key West · Washington DC · Boston · Atlanta · Scottsdale · Myrtle Beach · Austin
Don't guess whether the price is right.
Underbook compares the price for your hotel and dates, all-in where the sites report taxes and fees, across booking sites and says whether a cheaper listing names the same room or needs a check before you book. Free, and you always book where you choose.
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