Outage in LexisNexis Cirium
HTTP 503 Errors on FlightStats Flex Historical Flight Status API
Resolved MajorIncident Report
We are currently investigating reports of HTTP 503 (Service Unavailable) responses affecting the FlightStats Flex Historical Flight Status API. At this time, the issue appears to be impacting a subset of requests to the historical flight status endpoint. Our engineering teams have been notified and are actively working to identify the cause and restore normal service as quickly as possible. We will provide an update on or before May 9, 2026 at 19:30 UTC, as more information becomes available. Please contact our help desk with any questions. Thank you for your patience.
Components affected
LexisNexis Cirium Cirium Sky™ APIsTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
22 days ago - at 05/09/2026 05:29PM
This incident has been resolved.
IDENTIFIED
22 days ago - at 05/09/2026 02:35PM
Our engineers have identified the issue impacting the FlightStats Flex Historical Flight Status API and are actively working toward a resolution. We will continue to share updates here as progress is made. Thank you for your patience, and we apologize for the inconvenience.
INVESTIGATING
22 days ago - at 05/09/2026 12:45PM
We are currently investigating reports of HTTP 503 (Service Unavailable) responses affecting the FlightStats Flex Historical Flight Status API. At this time, the issue appears to be impacting a subset of requests to the historical flight status endpoint. Our engineering teams have been notified and are actively working to identify the cause and restore normal service as quickly as possible. We will provide an update on or before May 9, 2026 at 19:30 UTC, as more information becomes available. Please contact our help desk with any questions. Thank you for your patience.
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