Is Momondo Safe and Legit? An Honest 2026 Review

Short answer: yes, Momondo is safe and legitimate. It's a metasearch engine owned by Booking Holdings (Nasdaq: BKNG), the same parent as Kayak, Priceline, Booking.com, and Agoda. But "safe" doesn't mean "the cheapest" or "the most transparent" — there are real caveats you should know before clicking Book.

Who owns Momondo?

Momondo was founded in Denmark in 2006 and acquired by Kayak (Booking Holdings) in 2017 for around $550 million. Today it shares most of its backend inventory with Kayak — which is why you often see the exact same flight on both sites at the exact same price. For our full breakdown of how the major comparators stack up, see our Skyscanner vs Momondo vs Kayak comparison.

Is Momondo a scam?

No. Momondo itself doesn't sell you the ticket — it's a metasearch engine that compares prices across dozens of online travel agencies (OTAs) and airlines, then redirects you to whoever you choose. When booking goes wrong, it's almost never Momondo's fault — it's the OTA at the other end of the redirect.

That distinction matters because:

• Momondo doesn't hold your money
• Momondo doesn't issue your ticket
• Momondo doesn't handle refunds, changes, or cancellations

The OTA you land on does. And that's where it gets messy.

Where the complaints come from

Most negative Momondo reviews online aren't really about Momondo — they're about the third-party OTAs Momondo sends users to. Names that come up repeatedly in complaints:

• Mytrip / GotoGate / Travel Genio (all owned by Etraveli Group) — known for aggressive add-on fees and slow refunds
• Trip.com — generally reliable but customer service can be hit-or-miss
• Kiwi.com — innovative "virtual interlining" but their self-transfer protection has limits

If you book directly with the airline through Momondo, you avoid this entire layer of risk. Always check whether the cheapest result is an airline-direct booking or an OTA — Momondo labels it, but you have to look.

Are Momondo's prices real?

Mostly yes, but with two caveats:

1. Headline price ≠ checkout price. A €120 headline can become €180 after bag fees, seat selection, and payment surcharges. Read more in our guide to flight booking mistakes to avoid.
2. Inventory bias. Because Momondo shares Booking Holdings' inventory pool with Kayak, you'll miss some carriers that don't sell through that pool. We've seen Voyara, Skyscanner, and Google Flights surface cheaper fares on the same dates — especially for Asian carriers and budget European airlines.

When Momondo is the right tool

• You want a clean UX with a good calendar view
• You're flying intra-Europe and want to compare classic OTAs side by side
• You want fare-breakdown transparency (taxes vs base fare vs surcharges)

When to look elsewhere

• You're booking long-haul Asia routes (Skyscanner usually wider)
• You're price-sensitive and willing to check a multi-market scanner like Voyara that searches across booking regions
• You want to book direct with the airline (Google Flights links direct more often)

How to book safely on Momondo

1. Sort by price, but read the OTA name before clicking
2. When in doubt, choose the airline-direct booking even if it's €5–10 more — you keep airline rebooking protection
3. Cross-check the same itinerary on at least one other comparator
4. Pay with a credit card so you have chargeback rights
5. Take screenshots of the final price screen
6. Know your EU 261 rights in case the flight is disrupted

TL;DR

Momondo is a safe, legitimate metasearch tool with a great UX. The risk isn't Momondo — it's the OTA you click through to. Always use 2–3 comparators side by side. Start with Voyara for multi-market scanning, then verify on Momondo or Skyscanner.

→ Compare flights across markets with Voyara