Tracked Utilization Data Delay
Investigating - We are currently investigating an issue affecting Tracked Utilization data updates. Customers may experience delays in the availability of the latest Tracked Utilization data across Cirium products, including both Sky Warehouse surfaces. As a result, displayed Tracked Utilization data may not reflect the most recent updates. We are actively working to restore normal service and will provide further updates as more information becomes available. We apologize for the disruption and appreciate your patience.
Oct 07, 2026 - 13:15 UTC
Reduced Message Frequency for Sky Stream Positional and Flight Status Feeds
Update - Data continues to be received within the expected volume and latency ranges. The cutover to the data provider's new production environment is scheduled for 17:00 UTC on Thursday, 8th October. A further update will be provided after the cutover, at approximately 18:00 UTC on 8th October.
Oct 07, 2026 - 12:36 UTC
Update - Data continues to be received within the expected volume and latency ranges. We are continuing to monitor whilst our data provider works on a new production environment. A further update will be provided at approximately 12:00 UTC on Wednesday 7th October.
Oct 05, 2026 - 12:51 UTC
Update - Data continues to be received within the expected volume and latency ranges. We will monitor across the weekend to ensure the performance remains consistent. A further update will be provided at approximately 12:00 UTC on Monday 5th October.
Oct 02, 2026 - 12:25 UTC
Update - Data continues to be received within the expected volume and latency ranges. We will continue monitoring to ensure performance remains consistent and provide a further update at approximately 12:00 UTC on Thursday, 2nd October.
Oct 01, 2026 - 13:17 UTC
Update - We are now receiving data from our upstream provider within expected volume and latency ranges. While the current service has returned to expected levels and appears stable, we will continue monitoring to ensure performance remains consistent. We will provide our next update at approximately 12:00 UTC on Thursday, 1 October.
Sep 30, 2026 - 20:20 UTC
Monitoring - A fix has been implemented and we are monitoring the results.
Sep 30, 2026 - 17:06 UTC
Investigating - We are experiencing a further reoccurrence of the data degradation issue resulting in a reduced frequency of messages on the Sky Stream Positional and Flight Status Feeds. Our team is continuing to work with the data provider to find a permanent resolution. Please accept our apologies for the continued disruption and contact the Helpdesk with any questions.
Sep 30, 2026 - 13:17 UTC
Users Experiencing Slow Loading in SRS Analyzer and Diio Mi
Monitoring - The upgrade has been applied and both services have recovered. We are continuing to monitor the system performance.
Oct 07, 2026 - 10:02 UTC
Update - Our engineers have identified the issue and are currently applying an upgrade. We anticipate a further 30 minutes of downtime. Thank you for continued patience and understanding.
Oct 07, 2026 - 09:13 UTC
Identified - We are aware that some users are experiencing slow loading times in SRS Analyzer and Diio Mi. Our Engineering team has reproduced the issue and is actively working on a resolution. The next update will be provided by 12:41 UTC on 7 October 2026.
Oct 07, 2026 - 08:41 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 Degraded Performance
Values Analyzer Operational
Profiles Operational
Asset Watch Operational
Value Trends Operational
Ground Events Degraded Performance
Fleet Insights Operational
Pulse Operational
Market Alerts Operational
Schedule Snapshot Operational
Advanced Bookings Operational
Cirium Sky™ APIs Operational
Cirium Sky™ Warehouse Degraded Performance
Cirium Sky™ Stream Operational
Proactive & Traveler Services Operational
FlightStats.com Operational
Professional Data Services Degraded Performance
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

Scheduled Quarterly Maintenance - Cirium Sky API Platform - 13th October 2026 Oct 13, 2026 08:00-11:00 UTC

We will be performing maintenance to the new Cirium Sky API platform on 13th October 2026, from 08:00 to 11:00 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 Cirium Sky APIs may be experienced during the maintenance window. This maintenance does not affect the Flightstats (Flex) or Laminar Data Hub API services. Please contact our Help Desk if you have any questions.
Posted on Sep 15, 2026 - 14:40 UTC

Weekly Scheduled Maintenance - Flights Data Processing system Oct 14, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 14th October, 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 Sep 29, 2026 - 11:50 UTC

Weekly Scheduled Maintenance - Flights Data Processing system Oct 21, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 21st October, 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 Sep 29, 2026 - 11:51 UTC

Weekly Scheduled Maintenance - Flights Data Processing system Oct 28, 2026 09:00-11:00 UTC

We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 28th October, 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 Sep 29, 2026 - 11:51 UTC

Oct 7, 2026

Weekly Scheduled Maintenance - Flights Data Processing system
Completed - The scheduled maintenance has been completed.
Oct 7, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 7, 09:00 UTC
Scheduled - We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 7th October, 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.
Sep 29, 11:49 UTC
Unplanned Maintenance | Cirium Sky Stream | 07 October 2026
Completed - The scheduled maintenance has been completed.
Oct 7, 10:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 7, 08:00 UTC
Scheduled - To enhance the security of the Sky Stream platform, we will be conducting an unplanned maintenance window on 7 October 2026 from 08:00 UTC to 10:00 UTC. During this period, customers may notice a brief reduction in message volumes. The impact is expected to be minimal, and service availability should remain largely unaffected.
Sep 29, 10:52 UTC
SRS Analyser Service Disruption
Resolved - This incident has been resolved.
Oct 7, 07:50 UTC
Monitoring - The issue affecting SRS Analyzer, which resulted in users receiving 504 Gateway Timeout errors, has now been resolved. Service has been restored and SRS Analyzer is operating normally.

We will continue to monitor the service to ensure stability. Thank you for your patience while we worked to resolve this issue.
Oct 7, 02:13 UTC
Update - Our investigation into the SRS Analyzer service outage remains ongoing. We will provide a further update by 3:00 AM UTC on 07 October 2026. Thank you for your patience.
Oct 6, 23:54 UTC
Update - We are continuing to investigate this issue.
Oct 6, 19:43 UTC
Investigating - We're currently experiencing a service disruption with SRS Analyzer. Our engineering team has been engaged and is actively working to identify the cause of the issue. At this time, only SRS Analyzer is affected. Other products, including Diio Mi, remain operational.
We will provide further updates as soon as more information becomes available.
Oct 6, 19:41 UTC
Scheduled Maintenance - Diio Mi and SRS Analyser
Completed - The scheduled maintenance has been completed.
Oct 7, 06:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 7, 04:30 UTC
Scheduled - We will be performing maintenance to Diio Mi and SRS Analyser on 7th October 2026 from 04:30 UTC to 06:30 UTC. During this period, the platforms will undergo a series of routine maintenance tasks and upgrades. No downtime or performance degradation is expected. Please contact our Help Desk if you have any questions.
Oct 6, 16:44 UTC

Oct 6, 2026

Degraded Performance Issues Cirium Workbooks
Resolved - This incident has been resolved and access to projects and workbooks as been restored in Tableau Workbooks. Should you encounter any further issues, please contact our Help Desk for assistance.
Oct 6, 19:13 UTC
Identified - Our upstream vendor is actively investigating the issue. The incident began at approximately 03:58 UTC on Tuesday 6th October. Some users of Cirium Workbooks may be unable to view projects at this time. We will provide our next update by 19:15 UTC. We apologize for any inconvenience caused. Please contact our Help Desk with any questions.
Oct 6, 17:17 UTC
Update - We are continuing to investigate the issue affecting access to the Cirium Workbooks on Tableau. Thank you for your continued patience and understanding.
Oct 6, 14:39 UTC
Update - We are continuing to investigate this issue.
Oct 6, 10:21 UTC
Investigating - We’re currently experiencing degraded performance issues with Cirium Workbooks. Our team is currently working to restore normal performance levels. We apologize for any inconvenience. Cirium Workbooks users may be affected. Next update in 14:20 UTC.
Oct 6, 10:21 UTC
Elevated API Errors affecting the Emissions API
Resolved - Our engineers reverted a recent change and the Emissions API is now responding without errors.
Oct 6, 13:00 UTC
Investigating - We are experiencing an elevated level of API errors affecting the Emissions API endpoints. Our team is currently working to restore normal performance levels. Please accept our apologies for any disruption. We will post a further update on or before 20:30 UTC.
Oct 6, 12:34 UTC

Oct 5, 2026

Oct 4, 2026

Scheduled Maintenance - PDS Fleets & Values
Completed - The scheduled maintenance has been completed.
Oct 4, 13:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Oct 4, 08:00 UTC
Scheduled - We will be performing scheduled maintenance of our PDS Fleets & Values Services on Sunday, 5th October 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.
Sep 14, 09:03 UTC

Oct 3, 2026

No incidents reported.

Oct 2, 2026

Oct 1, 2026

Sep 30, 2026

Flight Data Not Refreshed in Sky Data Warehouse
Resolved - This incident has been resolved.
Sep 30, 13:52 UTC
Update - We are continuing to investigate the flight data processing issue. Please accept our apologies for the ongoing disruption.
Sep 30, 13:10 UTC
Investigating - We are investigating an issue affecting the processing of certain flight data updates. Customers may experience delays in receiving the latest flight data in affected services. Our engineering teams are actively investigating the issue and working toward resolution.

We will provide further updates as more information becomes available.
Sep 30, 08:42 UTC
Weekly Scheduled Maintenance - Flights Data Processing system
Completed - The scheduled maintenance has been completed.
Sep 30, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 30, 09:00 UTC
Scheduled - We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 30th September, 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.
Aug 26, 09:39 UTC
Reduced Message Frequency for Sky Stream Positional and Flight Status Feeds
Resolved - The previously reported issue that resulted in reduced message frequency for the Sky Stream Positional and Flight Status Feed has been resolved. Data is now flowing normally, and services have returned to expected operating levels.

We appreciate your patience while we worked to restore service.
Sep 30, 09:06 UTC
Identified - Our data provider reports improved stability on the affected upstream system for the time being and is continuing to work towards a permanent resolution while closely monitoring the situation. We expect to provide another update by 12:00 PM UTC on Wednesday, 30th September and will communicate any significant developments as they arise. Thank you for your patience.
Sep 30, 01:05 UTC
Investigating - We are experiencing a reoccurrence of the data degradation issue resulting in a reduced frequency of messages on the Sky Stream Positional and Flight Status Feeds. Our team is continuing to work with the data provider to find a permanent resolution. Please accept our apologies for the disruption caused and contact the Helpdesk with any questions.
Sep 29, 12:23 UTC
Scheduled Maintenance - Trips Data Services - 30th September 2026
Completed - The scheduled maintenance has been completed.
Sep 30, 08:30 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 30, 04:30 UTC
Scheduled - We will be performing maintenance to our Trip Data Services on 30th September from 04:30 to 08:30 UTC. During this period, the platform will undergo a series of maintenance tasks and upgrades. No downtime is expected during the maintenance window. Please contact our Help Desk if you have any questions.
Sep 29, 16:09 UTC

Sep 29, 2026

Data Publication Failures
Resolved - This incident has been resolved. All affected datasets have been republished and are up to date. Please accept our apologies for any disruption caused and contact the Helpdesk should you have any questions.
Sep 29, 10:03 UTC
Update - Sky Warehouse Schedule data has been successfully reloaded as of 19:37 UTC on Monday, 28th of September and is now available. Our teams are continuing to validate and confirm that updated data has been refreshed across Fleets, Ground Events, and Sky APIs. We will provide a further update once validation has been completed and the status of the remaining datasets has been confirmed. Thank you for your patience and understanding.
Sep 28, 20:33 UTC
Update - Updated affected service
Sep 28, 16:23 UTC
Identified - Our engineers have identified the cause of the stale data and successfully tested a fix. We will advise when the affected datasets have been republished.
Sep 28, 16:15 UTC
Investigating - We are currently investigating a data publication issue resulting in stale Schedules, Fleets and Ground Events data, affecting queries from Saturday 25th September onwards. We will provide further update on or before 21:00 UTC. Please contact our Help Desk with any questions. Thank you for your patience and understanding.
Sep 28, 13:11 UTC
Unable to approve Sky API trial requests
Resolved - This incident has been resolved with the backlog of pending requests now approved. Please accept our apologies for the delay and contact the Helpdesk should you have any questions.
Sep 29, 08:35 UTC
Identified - Our engineers have identified the cause of the issue. Subject to successful testing, we will release the fix to production tomorrow morning (UK time). Please accept our apologies for the continued delay to the trial approval process.
Sep 28, 16:28 UTC
Investigating - We are currently experiencing an issue that is preventing the approval of Cirium Sky API trial requests submitted via https://my.cirium.com/explore-cirium-products/sky-api-trial. Once the issue is resolved, we will work through the backlog of requests, with approved trials running for 14 days from the data of approval, not the date of request. Thank you for your patience whilst our engineers work to restore the service.
Sep 28, 11:34 UTC

Sep 28, 2026

Reduced Message Frequency for Sky Stream Positional and Flight Status Feed
Resolved - Service has been restored and feed message frequency has returned to expected levels. We are continuing to work with the upstream data supplier to perform a back fill of any missing data impacted during the incident. We will continue to monitor the service closely to ensure stability. Please contact our Help Desk with any questions.
Sep 28, 20:04 UTC
Investigating - We are continuing to experience data degradation from an upstream data supplier affecting the frequency of feed messages. Our engineers are working closely with the supplier and we will post the next status update on or around 20:00 UTC.
Sep 28, 16:05 UTC
Identified - We are currently experiencing a reduction in the frequency of messages for the Sky Stream Positional and Flight Status Feed due to an issue affecting one of our upstream data providers. Our team is actively working with the provider to resolve the issue and is closely monitoring the situation.
Sep 28, 08:11 UTC

Sep 27, 2026

Scheduled Maintenance - PDS Fleets & Values
Completed - The scheduled maintenance has been completed.
Sep 27, 13:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 27, 08:00 UTC
Scheduled - We will be performing scheduled maintenance of our PDS Fleets & Values Services on Sunday, 27th September 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.
Sep 14, 09:01 UTC

Sep 26, 2026

No incidents reported.

Sep 25, 2026

No incidents reported.

Sep 24, 2026

No incidents reported.

Sep 23, 2026

Cirium Sky Flight Status Feed API Degraded Performance
Resolved - The issue affecting data availability into the Flight Status Feed API appears to be resolved. We are not currently seeing any reports of errors, and service is operating normally. We will continue to closely monitor the API. If you experience any degraded performance, please contact our Help Desk for assistance.
Sep 23, 21:34 UTC
Investigating - We're currently investigating an issue with limited data being published to the Flight Status Feed API. This incident has been escalated to our engineering team for further review and we will provide another update on Wednesday, 23rd September, at 21:34 UTC. Please contact our Help Desk with any questions.
Sep 23, 17:40 UTC
Cirium Sky Positional Stream and Sky Flight Status Stream Service Disruption
Resolved - The incident affecting the Sky Positional Stream and Sky Flight Status Stream feeds has been resolved. The disruption lasted approximately 18 minutes, and delayed messages are now being published to the queues. Based on our investigation, no data loss has been identified. Please contact our Help Desk if you have any questions.
Sep 23, 16:05 UTC
Monitoring - Our Sky Stream Positional and Flight Status feeds are currently experiencing degraded performance, resulting in customers not receiving data. Engineering has investigated the issue and is now seeing data being successfully published to both feeds. We will continue to closely monitor the situation to ensure service stability and will provide further updates as needed.
Sep 23, 15:37 UTC
Weekly Scheduled Maintenance - Flights Data Processing system
Completed - The scheduled maintenance has been completed.
Sep 23, 11:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 09:00 UTC
Scheduled - We will be performing scheduled maintenance of our Flights Data Processing system on Wednesday, 23rd September, 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.
Aug 26, 09:39 UTC
Unplanned Maintenance - My Cirium - 23rd September 2026
Completed - The scheduled maintenance has been completed.
Sep 23, 10:00 UTC
In progress - Scheduled maintenance is currently in progress. We will provide updates as necessary.
Sep 23, 08:00 UTC
Scheduled - There will be an unplanned maintenance window on Wednesday, 23rd September 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.
Sep 22, 16:22 UTC
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