API toolkit for selling flights online


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Company mission

Duffel is on a mission to rebuild the infrastructure that underpins the travel industry to make it accessible for anyone who wishes sell travel.



HQ Location

City of London, London, UK


29% female employees

-31% employee growth in 12 months

Otta's take on Duffel

Theo Margolius headshot

Theo Margolius

COO of Otta

In the same way that challenger banks have come along to re-invent legacy banking software from the ground up, Duffel is doing the same in the travel market, linking up airlines directly with travel agents with a modern platform.

Duffel's system connects with airlines’ booking channels more extensively than those of incumbent operators, like Amadeus and Sabre, meaning it can facilitate selling not just seats on a plane, but also other products such as speedy boarding, airport transfer and seat selection.

Add-on products make up an increasing part of airline revenues but are mostly sold through airlines' own websites at the moment (whereas bookings are increasingly being made via intermediaries like Skyscanner). Duffel's technology will make it easier for airlines to sell more of these ancillary services, which is what makes its product so attractive to airline customers.

Duffel's main competitor in Europe, Amadeus, has several billions in revenue and over 15,000 employees, so there's a big challenge ahead, but a big prize if the company succeeds in capturing some of that market.

Total funding - $56.4m

Last 2 fundraises

Jun 2019



Oct 2019



This company has top investors

Company benefits

  • Flexible Working. Flexible Working. We work from the office 2 days per week where you'll be trusted to manage your own routine. Work 25 days per year from anywhere in the world upon manager approval
  • Paid Sabbatical. 12 weeks fully paid sabbatical after 4 years working at Duffel
  • Plenty of holidays. 27 days of annual leave per year + public holidays
  • Duffel Credits. A stipend to spend on flights for you and your family (just book it through Duffel's platform!)
  • Well-being. Physical and mental well-being support is provided through private healthcare. We also offer transportation schemes via our benefits platform
  • Retirement & Pension. Duffel will match a pension contribution up to 5% (based on qualifying earnings)
  • Learning & Development. A dedicated company budget to spend on your personal development
  • Family Leave. 26 weeks fully paid parental, adoption and/or foster care leave
  • Hybrid work from home policy

Company values

  • People Come First
  • Build with Pride
  • Never Stop Growing
  • Stay Fast and Fluid
  • Understand the Bigger Picture


Previously Head of Platform Engineering at GoCardless

People progressing

Joined as Finance Manager, being promoted to Head Of Finance after 1 year

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Duffel is hiring for 1 job on Otta!

All locations

Sales & Account Management