Fly.io

Fly.io — Firecracker microVMs in 35+ regions including Sydney, driven from the CLI. Fly runs OCI images as Firecracker microVMs close to users, with a genuinely global region list that includes Sydney — the only container host in this roster where that is true. Machines auto-stop and auto-start in a few hundred milliseconds, so you can approximate scale-to-zero without a serverless runtime. flyctl is the best CLI in the category and also, effectively, the only interface: the dashboard is thin by design. Built by Fly.io, Inc.. Founded 2017. Series C, ~$70M (2022) raised.

We track it in 1 comparison — Vercel alternatives — so every claim below is a cell in a table you can open and check rather than an impression. Across those rosters it sits against 12 other tools, and what follows is where it visibly separates from them.

Where it wins.

• Bandwidth price — $20 /TB, 3rd of 9.
• CLI quality — 5, tied for best across 2 of 13 tools.

Each of those is ranked against the whole roster on its category page, not against a hand-picked subset, so a first place here means first of everything we list.

Where it gives ground.

• Free tier — 2, 10th of 13. Cloudflare Workers & Pages records 5.

None of these disqualify it on their own. They are the fields to check against your own requirements before you commit, because they are the ones where a competitor genuinely does better.

Provenance. 23 of 26 tracked fields carry a value for Fly.io, and 3 of those cite a document you can open. Last verified 2026-06-15. Every figure keeps its own provenance — measured by us, claimed by the vendor, inferred, or community-reported — and we would rather print a dash than a guess.

Its nearest neighbour in our data is AWS Amplify Hosting. Fly.io is ahead on CLI quality (5 against 2) and Cron jobs (Partial against No). AWS Amplify Hosting takes Preview deploys (Yes against Partial) and Rollback (instant against redeploy). That pattern repeats across the rest of the roster — see Fly.io alternatives for the other rivals, each compared the same way.

Company

Fly.io, Inc.

Founded

2017

Funding

Series C, ~$70M (2022)

Fields we track

23 of 26

Last verified

2026-06-15

The right answer for Australian teams who want containers: the only host in this roster with real Sydney compute and cheap egress in the same product. The cost is that cron, previews and observability are patterns you assemble rather than features you switch on.

Bandwidth price

$20 /TB3rd of 9

Vendor-claimedverified 2026-06-15source

Price @ 1 TB

$30 /mo5th of 9

Inferred

CLI quality

51st of 13

Inferred

Cold start

400 ms12th of 13

Community-reported

Free tier

210th of 13

Community-reported

Sydney region

●Yes1st of 13

Vendor-claimedverified 2026-06-15source

Self-hostable

○No6th of 13

Inferred

Agent/CI deploy

●Yes1st of 13

Inferred

Fly.io is the right call in these situations, each one drawn from a field we actually record:

• Australian or multi-region apps that need compute near users.
• Teams comfortable living in the terminal.
• Workloads that benefit from auto-stopping machines between bursts.
• Bandwidth price is your binding constraint. Fly.io records $20 /TB, 3rd of 9 in the Vercel alternatives roster. We define that field as published marginal cost of a terabyte of outbound transfer once the included allowance is gone, at the cheapest listed region.
• CLI quality is your binding constraint. Fly.io records 5, the best figure in the Vercel alternatives roster. We define that field as 1–5.

Reach for something else when any of the following is a requirement rather than a nice-to-have:

• Free tier. Fly.io records 2, 10th of 13 in the Vercel alternatives roster. Cloudflare Workers & Pages records 5 on the same field. If that is a hard requirement rather than a preference, start elsewhere.

We publish this block because a comparison that only lists what a tool is good at is marketing. Every figure above sits on the same page as its source, and the field definitions are on the category tables if you want to check how we measured them.

What we don't know. 3 of the 26 fields we track for Fly.io are still blank: Fn timeout, Build minutes incl. and Analytics cost. Those render as dashes rather than as zeroes or assumptions, because an empty cell and a bad cell are not the same thing and only one of them is honest. If you know any of these figures and can point at a document, tell us.