Travel & Hospitality · Flight Booking
Developer-first REST API to search, book, and manage flights and ancillaries from hundreds of airlines
Duffel API is best for developers, fintechs, and startups wanting modern REST APIs for flight search, booking, ancillaries, and seat maps
API Key (Bearer Token: duffel_test_... / duffel_live_...)
Generous rate limits with up to 1500:1 search-to-book ratio free; sub-second search latency
Duffel is the developer-first travel API platform transforming how software applications search, book, and manage flights. Built as a modern, RESTful alternative to cumbersome legacy GDS protocols, Duffel provides a single clean API to access inventory from hundreds of global airlines, including full-service flag carriers, low-cost airlines, and IATA NDC direct connects.
With Duffel, developers can create offer requests across origin, destination, and dates, receiving normalized JSON responses with transparent fare breakdowns, cabin classes, and baggage allowances. Once an offer is selected, the API facilitates instant order creation, passenger details submission, and automated ticket issuance under Duffel's own IATA accreditation allowing startups to launch flight booking services without acquiring their own costly airline licenses.
Duffel provides rich support for airline ancillaries: developers can retrieve live seat maps, sell extra baggage, and offer priority boarding directly within their checkout flow. Webhooks provide real-time alerts for flight schedule changes, cancellations, and ticket issuance updates.
Duffel also supports post-booking management including refunds, order cancellations, and flight modifications via API. js/TypeScript, Python, and Ruby, along with drop-in UI components (such as interactive seat selection maps and payment components).
A full sandbox environment is available with zero upfront commitment, enabling developers to simulate bookings, carrier errors, and edge cases safely before going live.
| Feature | Status | Description & Capabilities |
|---|---|---|
| Flight Search & Booking | ✓ Supported | Provides native Flight Search & Booking capabilities integrated within the API. |
| Real-time Availability & Pricing | ✓ Supported | Provides native Real-time Availability & Pricing capabilities integrated within the API. |
| Reservation Management (Create / Cancel / Modify) | ✓ Supported | Provides native Reservation Management (Create / Cancel / Modify) capabilities integrated within the API. |
| Multi-city & Flexible-date Search | ✓ Supported | Provides native Multi-city & Flexible-date Search capabilities integrated within the API. |
| Africa / Nigeria Route & Property Coverage | ✓ Supported | Provides native Africa / Nigeria Route & Property Coverage capabilities integrated within the API. |
| Hotel / Accommodation Search & Booking | ✗ Not Supported | Hotel / Accommodation Search & Booking is currently not supported by Duffel API. |
| Reviews & Ratings Data | ✗ Not Supported | Reviews & Ratings Data is currently not supported by Duffel API. |
| Affiliate / Commission Tracking | ✗ Not Supported | Affiliate / Commission Tracking is currently not supported by Duffel API. |
No. With Duffel's Managed Content, you can search, book, and issue tickets using Duffel's accreditation and ticketing authority without needing your own airline license.
Yes. Duffel provides dedicated endpoints and drop-in UI components for seat selection and ancillary baggage.
Duffel offers official SDKs for Node.js (TypeScript/JavaScript), Python, and Ruby, along with comprehensive cURL documentation.