Fly.io vs Heroku - Uptime & Outage Comparison

Compare uptime, outage statistics, and incident history between Fly.io and Heroku. See which service has better reliability.

Note: Each service has different practices when updating its status page. One service may report more incidents due to transparency, not necessarily worse reliability. Compare these stats with context.

Fly.io

Fly.io

Status monitoring since June 2022

Operational

Fly.io Incident Statistics

2
Last 7 days
10
Last 30 days
51
Last 90 days

Recent Fly.io Incidents

Resolved 1 day ago

Management plane outage

We are investigating a major outage of our control plane. Apps may continue to run, but it is not currently possible ...

Resolved 7 days ago

Network issues impacting EU <-> US traffic

We've detected degraded network performance on some of our upstream network providers, impacting traffic between US a...

Resolved 18 days ago

Network issues in JNB region

We are investigating network issues in JNB region. Apps may experience increased latency or packet loss.

Heroku

Heroku

Status monitoring since April 2020

Operational

Heroku Incident Statistics

0
Last 7 days
0
Last 30 days
1
Last 90 days

Recent Heroku Incidents

Resolved 3 months ago

Service Disruption on Heroku

Earlier today, an infrastructure provider impacted parts of the Heroku Platform, causing disruption across the majori...

Resolved 3 months ago

Investigating an issue with elevated H99 Errors

Beginning at 23:17 UTC on September 24, 2025 and continuing until 00:39 UTC on September 25, 2025, impacted customers...

Resolved 4 months ago

Investigating an Issue with Heroku AI responses for gpt-oss-120b model

Heroku engineers are investigating a decline in successful API responses from the gpt-oss-120b AI model in US region.

Ready to monitor Fly.io, Heroku, and all your dependencies?

14-day free trial · No credit card required · No code required