duffel

# Duffel Flights Search for real-time flight offers across airlines via the [Duffel API](https://duffel.com/docs/api). Returns live pricing, cabin details, baggage info, and booking links. Supports one-way, round-trip, and multi-city searches. **Source:** [duffel.com](https://duffel.com) ## Prerequisites - `DUFFEL_API_KEY_LIVE` environment variable set with a live API token - Token needs `air.offer_requests.create` permission ## API Basics - **Base URL:** `https://api.duffel.com` - **Version header:** `Duffel-Version: v2` (REQUIRED, v1 is deprecated) - **Auth:** `Authorization: Bearer $DUFFEL_API_KEY_LIVE` - **Content-Type:** `application/json` - **Rate limit:** 60 requests per 60 seconds ## Search Flights (One-Way) ```bash curl -s -X POST "https://api.duffel.com/air/offer_requests?return_offers=true&supplier_timeout=15000" \ -H "Accept: application/json" \ -H "Duffel-Version: v2" \ -H "Authorization: Bearer $DUFFEL_API_KEY_LIVE" \ -H "Content-Type: application/json" \ -d '{ "data": { "slices": [{ "origin": "SFO", "destination": "NRT", "departure_date": "2026-08-15" }], "passengers": [{"type": "adult"}], "cabin_class": "economy" } }' ``` ## Search Flights (Round-Trip) Add a second slice with origin/destination reversed: ```bash curl -s -X POST "https://api.duffel.com/air/offer_requests?return_offers=true&supplier_timeout=15000" \ -H "Accept: application/json" \ -H "Duffel-Version: v2" \ -H "A...