Cloud · head to head
Fly.io vs Vagrant
The short version
- Only Vagrant has a free tier, so it costs nothing to try first.
- Each has a real cost: Fly.io egress is priced by destination region, from $0.02 per GB in North America and Europe to $0.12 per GB for Africa and India, so the same traffic costs six times more depending on where users are; Vagrant vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
- They diverge on capability: Fly.io covers Global deployment, Vagrant covers Box management.
- Prices and features above were last checked on 30 August 2026.
Where they differ
Only the attributes on which Fly.io and Vagrant actually diverge.
Identical on both: user rating (Not yet rated), category (Cloud).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in Fly.io
- Global deployment
- Docker support
- Postgres databases
- Redis support
- Auto-scaling
- Health checks
- Backups
- Monitoring
Only in Vagrant
- Box management
- Provider support
- Multi-machine setups
- Provisioners
- Networking
- Synced folders
- Snapshots
- Plugins
Both cover
- Docker
- Cloud deployment
What people use each for
The jobs each tool is most often brought in to do.
Fly.io
- Deploying containerised applications close to users across regionsnot Vagrant
- Running full stack apps and databases on managed machinesnot Vagrant
Vagrant
- Reproducible local development environments defined in a Vagrantfilenot Fly.io
- Provisioning identical VMs across VirtualBox, VMware and Hyper-V for a teamnot Fly.io
- Sandboxing multi-machine setups on a developer laptopnot Fly.io
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
Fly.io
- Egress is priced by destination region, from $0.02 per GB in North America and Europe to $0.12 per GB for Africa and India, so the same traffic costs six times more depending on where users are
- Stopped machines still bill at $0.15 per GB of root filesystem a month, so a paused service is not a free one
- Volumes are billed on provisioned capacity rather than usage, at $0.15 per GB a month
- Reservation discounts of 40% require paying a year up front, from $36 to $1,440
- Fly Kubernetes is a separate $75 a month per cluster
- Dedicated IPv4 addresses are $2 a month each
Vagrant
- Vagrant 2.4.3 and later is licensed under the Business Source License 1.1 with IBM Corporation as licensor, not an OSI open source licence
- The Additional Use Grant forbids offering Vagrant to third parties on a hosted or embedded basis in a paid product that competes with IBM's paid versions of Vagrant
- Each version converts to the MPL 2.0 Change License only four years after that version is first published
- Uses that fall outside the Additional Use Grant require a separately negotiated licence from the licensor
Pricing, plan by plan
Fly.io
$29/month- Pay-as-You-Go$null/mo
- Micro VMs and persistent storage charged by usage
- FlyCTL CLI
- Unlimited users and organizations
- Serious Support$29/month
- Access to dedicated engineering team
- All Pay-as-You-Go features
- Machine Reservation Blocks$null/mo
- 40% discount on machine usage
- Requires upfront payment for savings
- Compliance Package$99/month
- HIPAA compliance
- BAAs
- SOC2 documentation
Vagrant
Free- Open SourceFree
- Development environment provisioning
- Multiple providers
- Provisioner support
Which should you pick?
Choose Fly.io if
- You need global deployment.
- You work on Web, Api, Docker.
- You also want docker support.
Choose Vagrant if
- You need box management.
- You want to start without paying.
- You work on Linux, Windows, Mac.
- You also want provider support.
Questions people ask
- Is Fly.io or Vagrant better?
- Neither clearly leads. Fly.io starts at $29/month and Vagrant at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, Fly.io or Vagrant?
- Vagrant has a free tier; the other does not. Paid plans start at $29/month for Fly.io and Free for Vagrant.
- Does Fly.io or Vagrant run on more platforms?
- Fly.io runs on Web, Api, Docker. Vagrant runs on Linux, Windows, Mac.
- Can I use Vagrant for free?
- Yes. Vagrant has a free tier, so you can try it without paying. Fly.io starts at $29/month.
- What is Fly.io best used for?
- Fly.io is most often used for deploying containerised applications close to users across regions, running full stack apps and databases on managed machines. Of those, deploying containerised applications close to users across regions and running full stack apps and databases on managed machines are not what Vagrant is typically brought in for.
- What can Fly.io do that Vagrant cannot?
- Fly.io covers Global deployment, Docker support, Postgres databases, Redis support. Vagrant covers Box management, Provider support, Multi-machine setups, Provisioners. Both handle Docker, Cloud deployment.
Answered from the vendors’ own pages
Fly.io: Is there a free tier for Fly.io?
Fly.io does not advertise a free tier. The base plan is pay-as-you-go with usage-based pricing for Micro VMs and persistent storage. All users get FlyCTL CLI, unlimited organizations, private networking, SSO, ACLs, and scoped tokens.
SourceVagrant: Is Vagrant free to use?
Vagrant is a free, open-source command-line utility for managing virtual machine lifecycles.
SourceFly.io: How much does Fly.io Serious Support cost?
Serious Support costs 29 USD per month and provides access to a dedicated engineering team while maintaining all pay-as-you-go features for Micro VMs and storage.
SourceVagrant: Does Vagrant offer a paid tier?
Vagrant itself is free. HashiCorp offers a HCP Vagrant Registry with a free tier for use with Vagrant.
SourceFly.io: What does Fly.io Compliance Package include?
The Compliance Package is 99 USD per month and includes HIPAA compliance, BAAs, and SOC2 documentation for organizations requiring compliance certifications.
SourceFly.io: Does Fly.io offer discounts for upfront commitment?
Yes, Fly.io offers Machine Reservation Blocks with 40% discount on machine usage. This requires upfront payment but applies savings on infrastructure costs.
SourceRelated pages
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