Choose Cloudflare Workers if you need
- API. We haven't found it on Fly.io's website.
- Integration with GitHub, GitLab or Sentry. We haven't found them on Fly.io's website.
- ISO 27001 or GDPR. We haven't found them on Fly.io's website.
At a glance
- Cloudflare Workers has a free plan. We haven't confirmed one for Fly.io.
- Cloudflare Workers's lowest paid plan is Workers Paid at $5 per account per month minimum, plus usage, as of October 20, 2026.
- Both are available on CLI.
- Only Cloudflare Workers lists API.
- They list no integrations in common.
- Both list SOC 2 and HIPAA.
- Only Cloudflare Workers lists ISO 27001 and GDPR.
- Only Fly.io lists SSO.
- Both have a public API.
From each tool's own website, checked on the dates below, and from published reviews.
Which to choose
From the facts checked for both tools, not from opinion. A fact we haven't confirmed for one of them is never counted.
Choose Fly.io if you need
- Integration with GitHub Actions, Upstash for Redis or Tigris. We haven't found them on Cloudflare Workers's website.
- SSO. We haven't found it on Cloudflare Workers's website.
Cloudflare Workers
Nobody has reviewed Cloudflare Workers yet. Its rating shows once it has 3 reviews.
Review Cloudflare Workers
Fly.io
Nobody has reviewed Fly.io yet. Its rating shows once it has 3 reviews.
Review Fly.ioThe facts
- What it does
- Cloudflare WorkersDeploy serverless functions globally in seconds
- Fly.ioHardware-isolated VMs that boot in under a second and run close to your users
- Free plan
- Cloudflare WorkersYes
- Fly.ioNot confirmed
- Pricing
- Cloudflare WorkersNot confirmed
- Fly.ioNot confirmed
- Paid plans from
- Cloudflare Workers
What they share
From the platforms and integrations each website lists.
Platforms
Both
- CLI
Only Cloudflare Workers
- API
Only Fly.ioNothing else listed
Integrations
BothNone in common
Only Cloudflare Workers
- GitHub
- GitLab
- Sentry
- MongoDB
People who switched
Reviewers who say they used one of these before the other.
No reviewer has said they moved between Cloudflare Workers and Fly.io yet.
Used either of them?
Your review makes this comparison better for the next person. Review Cloudflare Workers or review Fly.io.