Buildkite vs Fly.io
Compare Buildkite and Fly.io on features, pricing, and buyer fit using the same researched criteria.
Buildkite
CI/CD with self-hosted + hosted agents — not a git host. Free; Pro $30/active user/mo; Enterprise custom; 30-day all-access trial. Does not outrank GitHub 9.1.
Best for
- • Teams that want specialist CI/CD with self-hosted agents against an existing git remote
- • Buyers comparing Buildkite Pro $30 to CircleCI Performance $15 and GitHub Actions minutes
- • Orgs that will not move source control in order to buy CI
Starting from $30.00/user/mo
Free plan available
VS
Our verdict
No universal winner. Choose based on which criteria matter most for your team.
Buildkite is better for
- ✓ Free plan
- ✓ Security & admin
Fly.io is better for
- ✓ Starting pricing
Tie
- • Integrations
Choose Buildkite if: Teams that want specialist CI/CD with self-hosted agents against an existing git remote
Choose Fly.io if: Teams that want PAYG microVM/app hosting close to users
Fly.io
Cloud PaaS / microVM app platform — PAYG; shared-cpu-1x from ~$1.94/mo in lower-cost regions. Support Standard $29/mo is support, not hosting. Does not outrank Render 7.9.
Best for
- • Teams that want PAYG microVM/app hosting close to users
- • Buyers comparing Fly.io $1.94 shared-cpu-1x to Render Pro $25 + compute
- • Orgs that will not treat $29 Support as the hosting SKU
Starting from $1.94/user/mo
No free plan
Pros & cons
A balanced look at where each product shines — and where it falls short.
Buildkite
Strengths in greenPros
- Stronger on free plan
- Stronger on security & admin
Cons
- Trails on starting pricing
Best for
Teams that want specialist CI/CD with self-hosted agents against an existing git remote
Fly.io
Trade-offs in redPros
- Stronger on starting pricing
Cons
- Trails on free plan
- Trails on security & admin
Best for
Teams that want PAYG microVM/app hosting close to users
Choose if…
Choose Buildkite if
- Teams that want specialist CI/CD with self-hosted agents against an existing git remote
- Buyers comparing Buildkite Pro $30 to CircleCI Performance $15 and GitHub Actions minutes
- Orgs that will not move source control in order to buy CI
Choose Fly.io if
- Teams that want PAYG microVM/app hosting close to users
- Buyers comparing Fly.io $1.94 shared-cpu-1x to Render Pro $25 + compute
- Orgs that will not treat $29 Support as the hosting SKU
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