Duffel

Active#14 worldwide · Online booking

Developer platform that lets travel businesses search, book and manage flights and stays from airlines and hotels through a single API, selling travel to their own customers.

Travel, hospitality & leisure›Online booking duffel.com

HQUnited Kingdom

Last roundSeries B · Oct 2019

Uback rankings

How the AI ranks →

Ranking	Tier	Rank	Edition	Next update
Online booking · worldwide	Top 24	#14	Edition 0 · Oct 2026	15 Jan 2027

Rank historyOct 2026 · #14 Online bookingFirst edition: no movements yet.

Estimated valuation

AI · Online booking ranking (worldwide)

≈ USD 150MUSD 100–230M · Hundreds of M$

Hundreds of k$

Millions $

Tens of M$

Hundreds of M$

Unicorn

Decacorn

Hectocorn

Anchor: Last known equity round: Series B · USD 30M · Oct 2019

An indicative editorial estimate produced by AI, imperfect by nature: neither a financial valuation nor investment advice. Only the market sets a company’s value. Method

Funding history

Date	Round	Amount	Type	Investors
Oct 2019	Series B	USD 30M	Equity	Index Ventures, Benchmark, Blossom Capital

Rounds as cited by Uback’s rankings. Equity, debt and grants are shown separately; only equity rounds count towards the valuation anchor.

Independent analyses

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What the AI reads

Read by the AI at the next edition.

Comparable companies in online booking

Full online booking ranking →

NEWT#13JapanHundreds of M$Tourlane#15GermanyHundreds of M$Fora#12United StatesHundreds of M$Huoli Group#16ChinaHundreds of M$

Investors in Duffel: Index Ventures · Benchmark · Blossom Capital

Last updated: Oct 2026Report an error

Uback is a content publisher and an aggregator of non-binding expressions of interest. It provides no investment advice, receives no mandate and takes part in no transaction. Rankings, ranges and brackets are editorial estimates produced by AI, purely indicative.