Skyscanner vs momondo (2026)
On official pages checked November 10, 2026, Skyscanner help says the site is free to search, never charges hidden fees, is paid a small referral fee by travel companies, and always sends you to the airline or travel provider to pay. Official momondo How we work language says a search is free for users, providers pay momondo for a redirect or for help booking, and ads are another way it earns money. Official momondo terms (header “Effective as of September 2018,” last updated March 2026) say momondo refers to KAYAK Software Corporation, is a travel search engine that does not sell travel products, and does not always display the lowest available price. This is not a fare bake-off.
How this page was made: this is a research-based comparison built from official pricing pages, plan or policy wording, and product documentation. We haven’t tested these products or policies ourselves, and we don’t invent scores. Our methodology.
Quick answer
Choose Skyscanner if you want official language that Skyscanner always sends you to the provider to pay and does not charge hidden fees. Choose momondo if you want official, detailed ranking and revenue disclosures, including that momondo does not always display the lowest price.
Last updated Pricing checked Nov 10, 2026
Check Skyscanner pricing (opens in a new tab)Check momondo pricing (opens in a new tab)
Key facts at a glance
| Skyscanner | momondo | |
|---|---|---|
| Cheapest-price claims | Official help does not claim Skyscanner always shows the lowest fare. Always compare the provider checkout total, including bags and payment fees. | Official How we work and terms: results may not reflect all available deals; provider sites should update inventory at least every 24 hours; results can be cached; momondo is “not comprehensive and do[es] not display all available providers and offers” and “do[es] not always display the lowest available price.” A “Cheapest” sort is available. |
| What it is, as written | Official help: a free comparison site. Skyscanner does not process payment. You are redirected to the airline or travel provider to pay. | Official terms: “Our Website is a travel search engine.” In those terms, “momondo” refers to KAYAK Software Corporation. Official How we work: it is not a travel agent, does not sell tickets or make reservations, and is not involved in the payment. Official How we work also says the company forms part of Booking Holdings Inc. |
| How the company is paid | Official help: Skyscanner is paid a small referral fee by travel companies and says it never charges hidden fees. | Official How we work: prices come from travel sites with no extra fee from momondo; the provider pays momondo for redirecting you or helping you book. Ads are another official revenue source, including payment when you click an ad. |
| Default ranking, as we can cite | The official Skyscanner help pages we cite for this comparison explain fees and payment, not a full default-sort algorithm, so we don’t describe one here. | Official How we work: default flight ranking aims at a trade-off between price and convenience (duration, price, distance, travelers, and how you started the search), with a result-diversity logic. Recommender systems can also weight expected revenue. When the same flight has several providers, official language says the cheapest is highlighted and other booking options are ordered mainly by click-through rate and cost per click. |
| If something goes wrong | Official overcharge help: contact the provider; extras can include bags, seats, insurance, or foreign-exchange fees. Skyscanner does not process the payment. | Official terms: the Travel Provider is responsible for the Travel Product; address booking issues with the provider, not with momondo. Prices can change, and additional charges may apply. |
We compared official Skyscanner help on why the site is free, how payment works, and overcharges with official momondo How we work and Terms & Conditions pages, all checked November 10, 2026. The momondo terms page carries both “Effective as of September 2018” and “Last updated: March 2026”; we report both official dates. We have not booked a matched itinerary on both sites, and we do not invent scores or claim either tool is always cheaper. Official momondo How we work also says the company forms part of Booking Holdings Inc., alongside Booking.com, Priceline, Agoda, Rentalcars.com, and OpenTable. Confirm the live checkout price, bags, and cancellation rules on the provider site before you pay.
Choose Skyscanner if you want a free search site that official help says sends you to the airline or provider to pay, with no hidden fees. Choose momondo if you want a free Booking Holdings metasearch, owned by KAYAK Software Corporation, whose official How we work page covers ranking, ads, and that it does not always show the lowest price.
Skyscanner vs momondo: side-by-side
| Skyscanner | momondo | |
|---|---|---|
| What it is, as written | Official help: a free comparison site. Skyscanner does not process payment. You are redirected to the airline or travel provider to pay. | Official terms: “Our Website is a travel search engine.” In those terms, “momondo” refers to KAYAK Software Corporation. Official How we work: it is not a travel agent, does not sell tickets or make reservations, and is not involved in the payment. Official How we work also says the company forms part of Booking Holdings Inc. |
| How the company is paid | Official help: Skyscanner is paid a small referral fee by travel companies and says it never charges hidden fees. | Official How we work: prices come from travel sites with no extra fee from momondo; the provider pays momondo for redirecting you or helping you book. Ads are another official revenue source, including payment when you click an ad. |
| Default ranking, as we can cite | The official Skyscanner help pages we cite for this comparison explain fees and payment, not a full default-sort algorithm, so we don’t describe one here. | Official How we work: default flight ranking aims at a trade-off between price and convenience (duration, price, distance, travelers, and how you started the search), with a result-diversity logic. Recommender systems can also weight expected revenue. When the same flight has several providers, official language says the cheapest is highlighted and other booking options are ordered mainly by click-through rate and cost per click. |
| Cheapest-price claims | Official help does not claim Skyscanner always shows the lowest fare. Always compare the provider checkout total, including bags and payment fees. | Official How we work and terms: results may not reflect all available deals; provider sites should update inventory at least every 24 hours; results can be cached; momondo is “not comprehensive and do[es] not display all available providers and offers” and “do[es] not always display the lowest available price.” A “Cheapest” sort is available. |
| If something goes wrong | Official overcharge help: contact the provider; extras can include bags, seats, insurance, or foreign-exchange fees. Skyscanner does not process the payment. | Official terms: the Travel Provider is responsible for the Travel Product; address booking issues with the provider, not with momondo. Prices can change, and additional charges may apply. |
What are the pros and cons?
Skyscanner: pros
- Official help says the search is free, there are no hidden Skyscanner fees, and you always pay the airline or travel provider
- Official overcharge and payment articles tell you to deal with the provider, which matches how a metasearch checkout works
- The same official fee language is already documented next to KAYAK and Google Flights on our other booking-tools pages
Skyscanner: cons
- The official Skyscanner help set we can cite does not include a full default-ranking disclosure like momondo’s How we work page
- Official help does not claim the site always finds the lowest fare
- You still complete checkout, and take the terms, on a third-party site
momondo: pros
- A detailed official How we work page that discloses default ranking factors, ads, caching, and expected-revenue weighting
- Official terms state clearly that momondo does not sell travel products and does not always display the lowest available price
- Official language says a search is free for users, with providers paying for redirects or assisted bookings
momondo: cons
- Official How we work ranking can include expected revenue, click-through rate, and cost per click, not a pure price sort
- Official terms are headed “Effective as of September 2018” and last updated March 2026, so you should read the live page
- Official language says inventory can be cached and that not every provider or deal is shown
Which should you choose: Skyscanner or momondo?
Both official sites describe a free metasearch layer, not a travel agency. Skyscanner’s official help is blunt about payment: you leave the site and pay the provider, and Skyscanner takes a referral fee without hidden user fees. momondo’s official How we work and terms go further on ranking, ads, caching, and the fact that the site does not always show the lowest price — and they identify momondo as KAYAK Software Corporation, part of Booking Holdings. Neither official page is a cheapest-fare guarantee. We have not booked a matched itinerary on both. For KAYAK itself, see Skyscanner vs KAYAK.
Choose Skyscanner if…
- You want official language that Skyscanner always sends you to the provider to pay and does not charge hidden fees
- You already use Skyscanner and mainly need a fee-and-payment comparison, not a ranking white paper
Choose momondo if…
- You want official, detailed ranking and revenue disclosures, including that momondo does not always display the lowest price
- You are comparing Booking Holdings metasearch brands and want momondo’s official KAYAK Software Corporation terms on the record
Neither official page is a cheapest-fare guarantee
Official momondo terms say the site is not comprehensive and does not always display the lowest available price. Official Skyscanner help does not make the opposite claim. Provider prices can include bags, seats, and payment fees that appear only at checkout. We don’t name an always-cheapest winner, and we don’t average fares we haven’t booked.
Who should skip this?
- Readers who want a live fare bake-off or a scored “best flight search.” We compared official terms, not a matched booking.
- People looking for KAYAK features such as Price Forecast or Hacker Fares. Those belong on Skyscanner vs KAYAK.
- Travelers who need hotel-search rules in this table. momondo’s official How we work page also describes stays ranking, including average revenue potential; that is a different job than this flights-focused comparison.
Frequently asked questions
Does momondo or Skyscanner sell the ticket?
Is either site always cheapest?
Who owns momondo?
When were momondo’s terms updated?
Sources
Pricing and plan details were checked on the official pages below as of Nov 10, 2026. Vendors change prices, credits and plan names often, and some show regional pricing at checkout, so confirm on the vendor’s site before you buy.
- Skyscanner Help: Why is Skyscanner free? — referral fee, no hidden fees (checked Nov 10, 2026) (help.skyscanner.net)
- Skyscanner Help: How can I pay? — redirected to the provider; Skyscanner does not process payment (checked Nov 10, 2026) (help.skyscanner.net)
- Skyscanner Help: I think I have been overcharged (checked Nov 10, 2026) (help.skyscanner.net)
- momondo: How we work — free for users, provider payment, ranking, ads, caching, Booking Holdings (checked Nov 10, 2026) (momondo.com)
- momondo: Terms & Conditions — KAYAK Software Corporation; not a seller; does not always display the lowest price; last updated March 2026 (checked Nov 10, 2026) (momondo.com)
Related
Skyscanner vs KAYAK for Flights (2026)
Both companies describe themselves as travel search engines you can use for free. Official Skyscanner help says it never charges hidden fees, is paid a small referral fee by travel companies, and always sends you to the airline or travel provider to pay. Official KAYAK help says it does not add a commission to the prices you see, may earn a commission when you click or book, labels sponsored listings, and in some cases offers Book on KAYAK with a third-party provider. We compared those written terms, checked November 10, 2026, not a fare bake-off.
comparisonGoogle Flights vs Skyscanner (2026)
Neither tool is a guaranteed cheapest-fare machine. Official Google Flights help says travel partners do not pay to appear in the flight list and do not influence that list’s order, and that you usually finish the purchase with an airline or online travel agency. Official Skyscanner help says the site is always free to search, never charges hidden fees of its own, and sends you to the airline or travel provider to pay. We compared those written terms, not a fare bake-off of our own.
guideBest Flight Search Tools (2026): A Choice Guide, Not a Scorecard
There is no official “always cheapest” flight search tool on the pages we checked November 10, 2026, and we did not run a fare bake-off. Google Flights’ official help says partners do not pay to appear in the flight list or influence its order. Skyscanner and KAYAK both say search is free; Skyscanner does not process payment, and KAYAK documents a 30-day Price Forecast and Hacker Fares. Going’s official membership guide lists a free Limited plan, Premium at $49 a year, and Elite at $199 a year, with no airline or OTA commissions. Hopper’s official terms say the price you pay Hopper may include a markup. This is not booking advice.
comparisonGoogle Flights vs KAYAK (2026)
Both tools are search engines for most bookings, not a promise of the cheapest ticket. Official Google Flights help says travel partners do not pay to appear in the flight list and do not influence that list’s order. Official KAYAK help says the site is free to use, does not add a commission to the prices you see, may earn a commission from partners when you click or book, and labels sponsored listings. We compared those written terms, checked November 10, 2026.
comparisonGoogle Hotels vs Booking.com (2026)
On official pages checked November 10, 2026, Google’s hotel-search help says hotels do not pay Google to appear in hotel search results and cannot pay to influence ranking. Default sort is by relevance (location, price, ratings and reviews, plus personalization). Paid ads can appear at the top with an “Ad” badge and do not affect organic results; booking links may be free or paid, and paid links carry an “Ads” badge. Booking.com’s How We Work page (updated May 31, 2025) says you contract with the property, the property pays a commission after the stay, Preferred Partners pay a higher commission, and an “Ad” badge means a paid placement. Neither official page we checked is a cheapest-rate guarantee. Booking’s current customer terms are dated August 25, 2025, with a new official version effective December 10, 2026.
comparisontrivago vs Google Hotels (2026)
These are both hotel-search surfaces, not the same kind of marketplace. On official pages checked November 10, 2026, Google’s hotel-search help says hotels do not pay Google to appear in hotel search results and cannot pay to influence their ranking. Default sort is by relevance. Paid ads can appear at the top with an “Ad” badge and, official help says, have no impact on the search results. trivago’s official help says it is a metasearch engine covering more than 2.5 million accommodations across about 190 countries, that booking sites pay a fee when you click a deal, and that the fee is a factor in the “our recommendations” sort. Official trivago language also says a lower “our lowest price” can sit below the “recommended deal,” and that some cheaper offers may not be displayed. Neither official page we checked is a cheapest-rate guarantee.
guideHow to Track Flight Prices (2026)
These are official search and alert tools, not a promise that you will catch the lowest fare. On official pages checked November 10, 2026, Google Flights lets you turn on “Track prices” for a route, for specific flights, or for “Any dates,” and can email you when a price changes significantly, when prices are likely to go up, or when a fare is about to expire. Official Google language also says calendar prices are updated about once every 24 hours, and that fare tips are based on past trends with a chance that future prices will not behave as expected. Official Skyscanner help describes an Everywhere search that ranks destinations by price, but the official U.S. and U.K. help articles do not use the same wording: the U.S. page says Everywhere and month-view prices are estimated prices found by users in the last 8 days, while the U.K. page calls them indicative prices based on recent searches that may change when you continue. Official Skyscanner price-alert emails are a snapshot for a single adult and can differ from live prices within minutes. This is not a cheapest-fare guarantee.