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Kiwi.com review

A flight booking site that builds cheap self-transfer, hidden city and multi-carrier routes, with its own Kiwi.com Guarantee.

By the HearSmart research desk · Updated November 8, 2026

Performance (40%)
8.9
Ease of use (25%)
8.0
Value (35%)
8.8

Kiwi.com specializes in fares that come from creative routing. Its app describes three tricks: self-transfer, which combines flights from different airlines into one cheaper trip; hidden cities, where your destination is the layover rather than the final stop; and throwaway ticketing, where it offers a round trip if that costs less than a one-way fare. It searches low-cost flights from thousands of carriers and adds trains and buses, with price alerts for routes you are watching. Because these itineraries are not protected like a normal through ticket, Kiwi.com sells them with the Kiwi.com Guarantee, which its site says covers alternative flight options for missed connections and instant credit for canceled flights, along with automatic check-in and a live boarding pass. The trade-off is risk and support. You book through Kiwi.com rather than the airline, hidden city tickets have rules of their own, and its App Store rating of 4.6 is lower than the larger apps on this list.

Who it is for

Adventurous budget travelers willing to self-transfer between airlines for a lower fare.

Price

Free app and website; fares and optional extras paid per booking.

Kiwi.com: Book Cheap Flights Plane tickets flight booking Free
Quoted from the vendor pricing page on November 8, 2026.

Key features

  • Self-transfer itineraries that combine flights from different airlines
  • Hidden city fares with a layover at your real destination
  • Throwaway ticketing when a round trip is cheaper than one way
  • Kiwi.com Guarantee with alternative flights for missed connections
  • Trains and buses alongside flights, plus price alerts

Strengths and weaknesses

  • Strength: Finds routes that other sites may not show
  • Strength: Guarantee offers alternatives and instant credit for canceled flights
  • Strength: Searches low-cost flights from thousands of carriers
  • Weakness: Self-transfer and hidden city routes carry real risk
  • Weakness: You book through Kiwi.com, so changes go through its support
  • Weakness: App rating of 4.6 trails the other big apps here

Key facts

  • Money saving routes: Self-transfer, hidden cities, throwaway ticketing
  • Guarantee: Kiwi.com Guarantee
  • Other transport: Trains and buses
  • App Store rating: 4.6 from 37K ratings

Where it ranks

Kiwi.com is No. 6 in our Best Flight Search Sites verdict.

Alternatives we scored

Visit kiwi.com · Questions or corrections: editorial@hearsmart.org