Outage in Fly.io
Networking and metrics degradation
Resolved MinorIncident Report
We are currently investigating increased latency and packet loss across multiple regions. Customers may see additional latency on requests at this time.
Relatedly, prometheus metrics reported via fly-metrics.net is currently degraded. Users may see delays or gaps in metrics at this time. We are working to address both issues.
Components affected
Fly.io DFW - Dallas, Texas (US) Fly.io LHR - London, United Kingdom Fly.io SJC - Sunnyvale, California (US) Fly.io SYD - Sydney, Australia Fly.io CDG - Paris, France Fly.io AMS - Amsterdam, Netherlands Fly.io FRA - Frankfurt, Germany Fly.io ORD - Chicago, Illinois (US) Fly.io YYZ - Toronto, Canada Fly.io NRT - Tokyo, Japan Fly.io IAD - Ashburn, Virginia (US) Fly.io LAX - Los Angeles, California (US) Fly.io Metrics Fly.io SIN - Singapore Fly.io GRU - São Paulo, BrazilTrusted by 1,000+ teams
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Latest Updates ( sorted recent to last )
RESOLVED
4 months ago - at 12/17/2025 02:47AM
This incident has been resolved.
MONITORING
4 months ago - at 12/17/2025 02:27AM
Network performance across Fly.io has returned to normal. This incident primarily impacted machines in the SJC and EWR regions.
Metrics are largely caught up, but users may still see a slight delay in reporting as the cluster finishes catching up.
INVESTIGATING
4 months ago - at 12/17/2025 02:12AM
A change has been made and metrics on fly-metrics.net are backfilling. Users may still see a slight delay or gaps in new metrics being reported as the backfill completes.
We continue to see higher than usual latency and packetloss across the network. We are continuing to investigate.
INVESTIGATING
4 months ago - at 12/17/2025 01:46AM
We are currently investigating increased latency and packet loss across multiple regions. Customers may see additional latency on requests at this time.
Relatedly, prometheus metrics reported via fly-metrics.net is currently degraded. Users may see delays or gaps in metrics at this time. We are working to address both issues.
Latest Fly.io outages
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Heightened latency in ORD - 4 days ago
Unavailable hosts in ORD region - 7 days ago
Managed Postgres Control Plane Issues in SYD - 8 days ago
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