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Ignav Flight API vs Transport for London, England

Same instrument, two spec sheets — measured, not claimed.

APIIgnav Flight APINEW—Transport for London, EnglandNEW—
Uptime · 30d
Uptime · 90d—%—%
Uptime · 30d—%—%
P50 · ms——
P95 · ms——
AuthnoneapiKey
CORSnoyes
HTTPSyesyes
Card requirednono
Commercial useunclearunclear
Data licenseUnverifiedUnverified
Free tierFree — limits not publishedFree tier — API key may be required for production
Rate limitUnpublishedUnpublished
In directory since2026-07-052026-07-05
operationalpartialdownno data

Ignav Flight API vs Transport for London, England: common questions

Which is more reliable, Ignav Flight API or Transport for London, England?

On our scheduled checks, Transport for London, England leads on measured uptime — Ignav Flight API at —% versus Transport for London, England at —% over 90 days. These are our own probe results, not provider claims; the uptime bars above show the day-by-day record for both.

Do Ignav Flight API and Transport for London, England need an API key?

Ignav Flight API needs no key, while Transport for London, England requires a free API key. If you want to start calling without signup, reach for Ignav Flight API first.

Can I call Ignav Flight API and Transport for London, England from the browser?

Only Transport for London, England is browser-friendly — it returns CORS headers over HTTPS. Ignav Flight API needs a server-side call or proxy, so factor that into which one fits a front-end project.

Are Ignav Flight API and Transport for London, England free for commercial use?

Ignav Flight API has unclear commercial terms, and Transport for London, England 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.