Two of the best metasearch engines for finding cheap flights compared head-to-head for 2026. Skyscanner wins in 4 categories, Momondo wins in 2.
Momondo and Skyscanner are two of the most popular flight metasearch engines in the world — neither sells tickets directly, both compare prices across hundreds of airlines and online travel agencies, then send you to the cheapest source to book. Momondo is owned by Booking Holdings (acquired through Kayak in 2017) and is particularly strong in Europe. Skyscanner is owned by Trip.com Group (acquired in 2016) and has the widest global reach, especially in Asia. Both are completely free for travelers — they make money from referral fees paid by booking partners.
| Category | Momondo | Skyscanner |
|---|---|---|
| OTA & airline coverage | Good | Excellent |
| Price calendar / flexible dates | Excellent | Good |
| "Everywhere" / open-destination search | Average | Excellent |
| User interface & design | Excellent | Good |
| Mix-and-match (combined one-ways) | Good | Excellent |
| Mobile app | Good | Excellent |
Highlighted cells indicate the category winner. Ratings: Excellent > Good > Average.
Skyscanner consistently indexes a wider universe of OTAs and budget carriers, including small regional and ultra-low-cost airlines that Momondo sometimes misses. This is Skyscanner's biggest single advantage — it more often surfaces the absolute cheapest fare available anywhere on the web. Momondo's coverage is strong in Europe and on major international carriers, but thinner on niche budget airlines.
Momondo's color-coded price calendar is one of the best in the industry — green = cheap, red = expensive — and instantly shows you the cheapest day to fly across an entire month. Skyscanner's "whole month" view does the same job functionally but feels less polished. If you're flexible on dates, Momondo's visual approach helps you spot deals faster.
Skyscanner invented the "Everywhere" search — type your origin, leave the destination blank, and see the cheapest flights from your city to anywhere in the world, sorted by price. It's unmatched for inspiration and bucket-list bargain-hunting. Momondo's open-destination tools exist but are less prominent and less powerful.
Momondo wins on pure design — clean typography, generous whitespace, intuitive filters, and clear pricing breakdowns. Skyscanner's UI is functional and improving but feels denser and more cluttered. For travelers who value the booking experience itself, Momondo is the more pleasant tool.
Both metasearch engines now combine two separate one-way tickets from different airlines into a single itinerary — sometimes beating the cheapest round-trip fare by $100+. Skyscanner introduced this feature first and has more sophisticated combinations, including multi-airline routings that no single OTA would offer. Momondo also does this well but with slightly fewer combinations surfaced.
Skyscanner's mobile app is industry-leading: fast, well-designed, with strong price alerts and offline trip management. Momondo's app is solid but doesn't quite match Skyscanner's polish. For travelers who book mostly on phone, Skyscanner has the edge.
Skyscanner wins on raw cheapness — wider coverage and better mix-and-match means it more often surfaces the absolute lowest fare. Momondo wins on user experience — better design, better price calendar, more pleasant to use. Both are free metasearch engines that make money from referrals, so check both for any important booking. Run your search on Skyscanner first to find the cheapest fare; cross-check on Momondo to confirm and to see the visual price calendar.
Best-in-class price calendar; cleaner UI; transparent fee breakdown; strong European coverage; pleasant booking experience
Maximum OTA coverage; budget-airline pricing; the famous Everywhere search; mix-and-match one-ways; the best mobile app in metasearch
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Both Momondo and Skyscanner are metasearch engines, not booking platforms — they send you to a third party (an airline or OTA) to actually pay. The OTA you land on matters as much as the price you saw. Some OTAs (Kiwi.com, MyTrip, Gotogate, Trip.com) have a reputation for hidden fees, hard-to-reach customer service, and difficulty with cancellations or schedule changes. Both Momondo and Skyscanner now show user-rated reliability scores for OTAs, but they're easy to miss. Always check who you'll be booking with before clicking through, and consider paying $10–$30 more to book directly with the airline if the cheapest OTA is unfamiliar.
Currency settings matter too. Both engines let you switch the display currency, but the OTA you book through may charge in a different currency with its own conversion fee on top. For non-US travelers especially, double-check the final charge currency at checkout — phantom 2–4% conversion margins are common.
For a quick decision rule: use Skyscanner if your priority is the absolute cheapest fare, especially on routes where budget airlines compete. Use Momondo if you have flexible dates and want to visually scan a month of prices, or if you find Skyscanner's interface tiring. For any meaningful booking, run the search on both — they take 2 minutes combined and the results genuinely differ. The "winner" varies by route: Skyscanner is consistently stronger on Asia and budget Europe; Momondo is competitive on transatlantic and North American domestic.
Try Google Flights as a third checkpoint. It's the fastest of the three for changing dates and routes, and its price tracker is more reliable than either Momondo's or Skyscanner's. The downside: Google Flights doesn't include some major OTAs in its results, so it occasionally misses the cheapest deal that Skyscanner finds.
Across forums and traveler reviews, two consistent patterns emerge. First: travelers who try both often end up using Skyscanner for the initial search and Momondo for final price-checking, because Momondo's calendar makes it easy to spot whether shifting your trip by one day saves $100. Second: when prices match within $20, most users prefer to book through Momondo because the UI gives them more confidence about what they're paying for.
The cases where one clearly beats the other: Skyscanner wins decisively when budget carriers like Wizz Air, Pegasus, or Cebu Pacific are part of the equation — Momondo sometimes misses these. Momondo wins decisively when you want to visually compare 3+ different routings (e.g., direct vs one-stop, different airports) on the same screen.
Skyscanner is the better default choice for most travelers thanks to wider OTA coverage, the unique Everywhere search, and a stronger mobile app. Momondo is the better choice if you have flexible dates and want a visual price calendar, or if you simply prefer a more polished interface. Both are free, both take 30 seconds to search, and there's no real reason to pick just one.
Realistically, the cheapest fare for your specific trip is what matters — and it changes constantly. Use the widget above to search across 100+ booking sources at once, then cross-check on whichever of Momondo or Skyscanner you prefer. The 5 minutes of comparison often saves $50–$200 on a single international booking.
The best test is your own trip. Use the search widget above for live prices, then run the same search on Momondo.com and Skyscanner.com for comparison. Pay attention to total price including fees, the OTA you'd be booking through, and the cancellation policy of that specific fare class.
Once you've picked your flight, lock in the rest of your trip: compare travel insurance, pre-book your airport transfer, and grab an eSIM so you land connected.
Momondo wins on UI design, the color-coded price calendar, and clean fee breakdowns. Skyscanner wins on raw OTA coverage, the famous Everywhere search, broader budget-airline indexing, and the better mobile app. Skyscanner more often finds the absolute cheapest fare; Momondo is more pleasant to use. Most travelers should check both.
Skyscanner indexes a slightly wider set of smaller OTAs and budget carriers, so it more often surfaces the absolute lowest fare — particularly on routes involving Wizz Air, Pegasus, AirAsia, Cebu Pacific, and other ultra-low-cost airlines. Momondo (owned by Booking Holdings via Kayak) frequently shows competitive prices and uniquely combines two one-way tickets to beat round-trip fares.
Same parent, different brand. Kayak acquired Momondo Group in 2017, and both now operate under Booking Holdings (which also owns Booking.com, Priceline, and Agoda). Despite shared ownership, they run as independent brands with different interfaces, search algorithms, and OTA partnerships — so it's worth checking both rather than assuming they return identical results.
Skyscanner is owned by Trip.com Group (the Chinese travel giant that also owns Trip.com, Ctrip, and Qunar). Trip.com Group acquired Skyscanner in late 2016 for £1.4 billion. Despite the ownership, Skyscanner operates independently and its search results aren't biased toward Trip.com bookings.
Travelers who value clean visual design, color-coded price calendars (red = expensive, green = cheap), and transparent fee breakdowns. Particularly strong for European travelers and for anyone planning multi-city itineraries who wants to compare combinations on a single screen.
Anyone who wants the widest possible coverage and the lowest possible fare. Especially valuable for: travelers flexible on destination (use the Everywhere search), budget-conscious travelers (best ULCC coverage), Asia-Pacific routes, and mobile-first users (best app in the metasearch category).
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