Kayak
Worth it
Confidence: Medium
Use KAYAK free to compare flights, hotels, and cars . the search side is solid and the app is well reviewed.
New check
Comparison
Kayak vs Momondo
Kayak and Momondo both land on Worth it.
Momondo
Worth it
Confidence: Medium
Free metasearch that consistently finds cheap fares . use it to compare, then book direct with the airline when the price is close.
| Compare | ||
|---|---|---|
| Verdict | Worth it | Worth it |
| Best for | Deal-hunting leisure travelers | Price-sensitive leisure travelers |
| Who it's not for | Travelers wanting one accountable party for the whole booking | Travelers who want one company accountable end-to-end |
| Privacy | Security page, dedicated team, and HackerOne bounty exist; two public incidents: a 2012 data-exposure glitch and a 2022 account-takeover disclosure.⁵ | No breach reported in reviewed sources; runs a HackerOne program, but 2,744 domain credentials appear in infostealer logs. |
| Support quality | Complaint sites document hard-to-resolve booking disputes | Third-party sellers handle issues; dispute complaints common |
| Public sentiment | Users like the search experience, but a vocal minority report misleading prices, booking disputes, and hard-to-reach support.¹ | Loved for finding cheap fares, but booking problems with third-party sellers drive the loudest complaints.12 |
| Biggest gotcha | ConsumerAffairs lists misleading-pricing complaints; confirm the final price before paying³ | Support depends on the third-party seller you book, not Momondo |
Pick Kayak when
- Deal-hunting leisure travelers
- Price comparison across many sites
- Flexible-date and destination explorers
When Kayak is not a fit
- Travelers wanting one accountable party for the whole booking
- Corporate travel needing policy controls and managed support
- Anyone booking on price alone without verifying the final total
Pick Momondo when
- Price-sensitive leisure travelers
- Flexible-date fare hunting
- Comparing OTA sellers before booking
- Price-drop alert followers
When Momondo is not a fit
- Travelers who want one company accountable end-to-end
- Corporate travel needing invoicing and policy controls
- Anyone unwilling to book via third-party sellers
- People expecting Momondo to handle refunds or disputes
Sources
- KAYAK Reviews on Trustpilottrustpilot.comreview
review
- KAYAK Reviews & Complaints . ConsumerAffairsconsumeraffairs.comreview
- KAYAK app reviews . App Storeapps.apple.comreview
- Account takeover in KAYAK . Fluid Attacksfluidattacks.comsecurity
- Kayak.com investigates search engine glitch . Infosecurity Magazineinfosecurity-magazine.comnews
- KAYAK Bug Bounty . HackerOnehackerone.comsecurity
- Security at KAYAKkayak.comofficial
official
- KAYAK vs Competitors . FareArenafarearena.comreview
- Momondo homepagemomondo.comofficial
- Trustpilot reviews of momondotrustpilot.comreview
- Is Momondo trustworthy? Reddit r/travelreddit.comreview
- Forbes review of Momondoforbes.comreview
- Frommers best airfare search sites 2026frommers.comreview
- Ryanair and Momondo fall out over fare screen-scrapersphocuswire.comnews