Intermittent Timeout Errors on Flight Track API and Historical Flight Status API
Update - Our engineers have restarted the affected database, and although an improvement in performance has been observed, some timeout errors are still occurring. Investigation of the underlying cause is continuing and a further update will be posted no later than 21:10 UTC. Thank you for your understanding. Please contact the Helpdesk if you require support.
Aug 11, 2026 - 13:10 UTC
Update - We continue to investigate the issue affecting the Flight Track API and Historical Flight Status API. Our team is actively working on a resolution and will provide updates as they become available. If you have any questions or are experiencing this issue, please contact helpdesk@cirium.com
Aug 11, 2026 - 05:04 UTC
Investigating - We are investigating an issue where some requests to the Flight Track API and Historical Flight Status API endpoints are returning intermittent timeout errors. Our engineering team is actively working to identify and resolve the root cause. Updates will be provided as soon as more information becomes available.
Aug 10, 2026 - 21:04 UTC

About This Site

Welcome to our status page where you can see the current status of our products. If you require further assistance please contact us through the Cirium Help Desk.

Diio Mi Operational
SRS Analyzer Operational
Dashboard Operational
Fleets Analyzer Operational
Values Analyzer Operational
Profiles Operational
Asset Watch Operational
Value Trends Operational
Ground Events Operational
Fleet Insights Operational
Pulse Operational
Market Alerts Operational
Schedule Snapshot Operational
Advanced Bookings Operational
Cirium Sky™ APIs Degraded Performance
Cirium Sky™ Warehouse Operational
Cirium Sky™ Stream Operational
Proactive & Traveler Services Operational
FlightStats.com Operational
Professional Data Services Operational
Cirium Workbooks Operational
My Cirium Operational
Cirium Journey™ OTP Awards AI Operational
Cirium Journey™ OTP Improvement AI Operational
Cirium Sky™ Schedule Files Operational
Operational
Degraded Performance
Partial Outage
Major Outage
Maintenance

Scheduled Maintenance

Weekly Scheduled Maintenance - Flights Data Processing system Aug 12, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 12th August from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users of services that surface flights data may experience degraded performance or interruptions. Please contact our help desk with any questions.
Posted on Aug 04, 2026 - 16:23 UTC

Weekly Scheduled Maintenance - Flights Data Processing system Aug 19, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 19th August from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users of services that surface flights data may experience degraded performance or interruptions. Please contact our help desk with any questions.
Posted on Aug 04, 2026 - 16:23 UTC

Weekly Scheduled Maintenance - Flights Data Processing system Aug 26, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 26th August from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users of services that surface flights data may experience degraded performance or interruptions. Please contact our help desk with any questions.
Posted on Aug 04, 2026 - 16:24 UTC

Cirium Sky Warehouse Quarterly Maintenance Sep 2, 2026 08:00-11:00 UTC

We will be performing scheduled quarterly maintenance on the Sky Warehouse platform on 02 September 2026 at 08:00 UTC. During this period, customers may experience intermittent service interruptions, increased latency, or temporary unavailability when accessing Sky Warehouse services. Please contact our help desk with any questions.
Posted on Jul 29, 2026 - 10:44 UTC

Aug 11, 2026

FlightStats.com Performance Degradation and Historical Flight Lookup Issues
Resolved - This incident has been resolved.
Aug 11, 11:32 UTC
Update - We continue to investigate the issue affecting Flightstats.com. Our team is actively working on a resolution and will provide updates as more information becomes available. If you have any questions or are experiencing this issue, please contact helpdesk@cirium.com
Aug 11, 04:30 UTC
Investigating - We are currently investigating an issue affecting FlightStats.com. Users may experience slow performance, intermittent unavailability, and difficulties retrieving historical flight information. Our team is actively working to restore normal service and will provide updates as more information becomes available. Our apologies for the inconvenience.
Aug 10, 20:28 UTC

Aug 10, 2026

Aug 9, 2026

Cirium PDS Fleets and Values Schedule Maintenance (09/08/2026)
Completed - The scheduled maintenance has been completed.
Aug 9, 13:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 9, 08:00 UTC
Scheduled - We will be performing scheduled maintenance of our PDS Fleets & Values Services on Sunday, 9th August 2026 from 08:00 to 13:00 UTC.

During this period, the system will undergo a series of routine maintenance tasks. Users of these services; including the PDS Fleets API Webservices, which surface Fleets or Values data may experience degraded performance or interruptions.

Additionally, scheduled file deliveries may be unavoidably delayed. Please contact our Help Desk with any questions.
Aug 5, 11:15 UTC

Aug 8, 2026

No incidents reported.

Aug 7, 2026

No incidents reported.

Aug 6, 2026

No incidents reported.

Aug 5, 2026

Scheduled Maintenance - My Cirium - 5th August 2026
Completed - The scheduled maintenance has been completed.
Aug 5, 11:01 UTC
Update - The maintenance window has been extended by an hour to 11:00 UTC.
Aug 5, 09:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 08:00 UTC
Scheduled - There will be a scheduled maintenance window on Wednesday 5th August from 08:00 to 10:00 UTC. This will impact My Cirium (my.cirium.com). Please expect some downtime during the period of the maintenance window. We will provide an update once the maintenance window has been completed.
Aug 3, 10:21 UTC
Weekly Scheduled Maintenance - Flights Data Processing system
Completed - The scheduled maintenance has been completed.
Aug 5, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Aug 5, 09:00 UTC
Scheduled - We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 5th August from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users of services that surface flights data may experience degraded performance or interruptions. Please contact our help desk with any questions.
Jul 14, 11:37 UTC

Aug 4, 2026

Degraded Performance Issues -SKY API Flight Track Error 503
Resolved - This incident has been resolved.
Aug 4, 07:25 UTC
Investigating - We’re currently experiencing degraded performance issues with Sky API. Our team is currently working to restore normal performance levels. We apologize for any inconvenience. Sky API users may be affected. Next update in 08:15 am UTC.
Aug 4, 06:08 UTC

Aug 3, 2026

Fleets Analyzer: Aircraft Summary Page Data Population Issue
Resolved - This incident has been resolved.
Aug 3, 06:37 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Aug 3, 05:20 UTC
Update - We are still continuing investigation of the issue in Fleets Analyzer. Our team is actively working on a resolution. If you have any questions or are experiencing this issue, please contact helpdesk@cirium.com.
Aug 3, 03:20 UTC
Update - We continue to investigate the issue affecting Aircraft Summary pages in Fleets Analyzer. Some users may still experience missing or incomplete aircraft information. Our team is actively working on a resolution. If you have any questions or are experiencing this issue, please contact helpdesk@cirium.com.
Aug 2, 19:02 UTC
Investigating - We are investigating reports of Aircraft Summary pages displaying incomplete or invalid aircraft information in Fleets Analyzer. Some users may experience missing data fields or aircraft details failing to load as expected. Our team is actively reviewing the issue. If you have any questions or are experiencing this issue, please contact helpdesk@cirium.com.
Aug 2, 15:02 UTC

Aug 2, 2026

Aug 1, 2026

No incidents reported.

Jul 31, 2026

No incidents reported.

Jul 30, 2026

No incidents reported.

Jul 29, 2026

Scheduled Quarterly Maintenance - Cirium APIs (Sky and Flightstats), Cirium Sky Warehouse, Cirium Sky Stream
Completed - The scheduled maintenance has been completed.
Jul 29, 13:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 29, 08:00 UTC
Scheduled - We will be performing maintenance on our Flights Data Processing system on Wednesday, 29th July from 08:00 to 13:00 UTC. During this period, the service will undergo a series of maintenance tasks and upgrades. No extended downtime is expected, but some unavailability or reduced performance of services that surface flights, aeronautical, emissions and NOTAM data may be experienced during the maintenance window. Please contact our Help Desk if you have any questions.
Jul 1, 09:52 UTC
Weekly Scheduled Maintenance - Flights Data Processing system
Completed - The scheduled maintenance has been completed.
Jul 29, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 29, 09:00 UTC
Scheduled - We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 29th July from 09:00 to 11:00 UTC. During this period, the system will undergo a series of routine maintenance tasks. Users of services that surface flights data may experience degraded performance or interruptions. Please contact our help desk with any questions.
Jun 24, 08:53 UTC

Jul 28, 2026

Scheduled Maintenance - SFTP delivery system for Cirium Sky Schedule File
Completed - The scheduled maintenance has been completed.
Jul 28, 03:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Jul 28, 02:30 UTC
Scheduled - We will be performing scheduled maintenance on the SFTP delivery system for Cirium Sky Schedule Files on July 28th, 2:30 AM - 3:30 AM UTC. During this period, users can expect the SFTP gateway server to undergo a full system patching and reboot. Please contact our help desk with any questions.
Jul 22, 07:06 UTC
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