seats-aero

# Seats.aero Skill Search cached and live award flight availability across 27 mileage programs (including Spirit Free Spirit and Frontier Miles, added April 2026). Find the cheapest award flights, compare programs, and get booking links. **Source:** [seats.aero](https://seats.aero) | [API Docs](https://developers.seats.aero) | [Knowledge Base](https://docs.seats.aero) ## Authentication Set `SEATS_AERO_API_KEY` in your `.env` file. Get from [Settings > API tab](https://seats.aero/settings) (Pro account required). All requests use the `Partner-Authorization` header. Pro users get **1,000 API calls per day** for non-commercial use. ## API Base ``` https://seats.aero/partnerapi ``` ## Key Concepts ### Saver vs Dynamic Pricing Award seats fall into two categories: - **Saver (fixed price):** Set, predictable miles cost. Often the ONLY type bookable through partner programs. Best value. Always shown on Seats.aero. - **Dynamic:** Price changes based on demand (like cash fares). Can be reasonable or extremely expensive. Seats.aero **filters out overpriced dynamic awards by default.** ### Dynamic Price Filter Thresholds Awards exceeding these per-hour thresholds are hidden automatically: | Program | Economy | Prem Econ | Business | First | |---------|---------|-----------|----------|-------| | American | <100K total | <100K total | <150K total | <200K total | | United | 7,500/hr | 10,000/hr | 14,000/hr | 20,000/hr (max 10h) | | Delta | 10,000/hr | 15,000/hr | 20,000/hr | ...