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Most major aviation data APIs are flight-tracking-first. Skystack is airport-operations-first — here's how that plays out capability by capability.

CapabilitySkystackFlightAware AeroAPIAviationStackCiriumAeroDataBox
Computed active runways (confidence-scored)
Normalized ATIS (structured fields)

Cirium lists NOTAMs and weather among its enterprise data sets, but ATIS isn't broken into structured fields the way Skystack returns it.

Runway surface conditions
Live flight tracking & status

Not Skystack's focus today — we're airport-operations-first, not flight-tracking-first.

Historical flight data
Self-serve signup, no sales call

FlightAware AeroAPI

Flight tracking & status

Per-query, $200/mo minimum

AviationStack

Flight schedules & reference data

Free tier, then $49.99–$499.99/mo

Cirium

Enterprise flight data & analytics

Enterprise / custom quote

AeroDataBox

Flight status & airport schedules

Tiered, via RapidAPI

Aircraft landing on a runway at dusk

Start building on real airport data

Free tier included. No credit card until you outgrow it.