DFlight API vs Sunrise-Sunset
Same instrument, two spec sheets — measured, not claimed.
DFlight API vs Sunrise-Sunset: common questions
Which is more reliable, DFlight API or Sunrise-Sunset?
On our scheduled checks, Sunrise-Sunset leads on measured uptime — DFlight API at 11.8% versus Sunrise-Sunset at 99.02% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.
Which is faster, DFlight API or Sunrise-Sunset?
Sunrise-Sunset has the lower median latency in our checks — DFlight API responds in 319 ms versus Sunrise-Sunset at 204 ms (P50). Tail latency (P95) is in the table above; for most workloads the median is the number that shapes how the API feels.
Do DFlight API and Sunrise-Sunset need an API key?
Neither needs a paid key — DFlight API is callable with no signup, and Sunrise-Sunset is callable with no signup. Both are quick to prototype with; rate limits still apply.
Can I call DFlight API and Sunrise-Sunset from the browser?
Only Sunrise-Sunset is browser-friendly — it returns CORS headers over HTTPS. DFlight API needs a server-side call or proxy, so factor that into which one fits a front-end project.
Are DFlight API and Sunrise-Sunset free for commercial use?
DFlight API has unclear commercial terms, and Sunrise-Sunset has unclear commercial terms. We track service terms and the data license as separate fields — see the Commercial use and Data license rows above, and confirm both before shipping either in a paid product.