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airportsapi vs Transport for London, England

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

APIairportsapiHEALTHY73Transport for London, EnglandHEALTHY77
Uptime · 30d
Uptime · 90d88.2%68.6%
Uptime · 30d85.0%46.7%
P50 · ms821316
P95 · ms4969732
AuthnoneapiKey
CORSyesyes
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

airportsapi vs Transport for London, England: common questions

Which is more reliable, airportsapi or Transport for London, England?

On our scheduled checks, airportsapi leads on measured uptime — airportsapi at 88.2% versus Transport for London, England at 68.6% 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, airportsapi or Transport for London, England?

Transport for London, England has the lower median latency in our checks — airportsapi responds in 821 ms versus Transport for London, England at 316 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 airportsapi and Transport for London, England need an API key?

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

Can I call airportsapi and Transport for London, England from the browser?

Yes — both airportsapi and Transport for London, England send CORS headers over HTTPS, so front-end code can fetch either directly with no backend proxy. That makes them easy to swap in a client-side app while you compare responses.

Are airportsapi and Transport for London, England free for commercial use?

airportsapi 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.