Fly.io
vs
Azure
What's good about each
- Excellent tooling and developer experience
- Fast deployments, scale to zero, little config needed
- Per-second billing, with a 40% discount for reserved compute blocks
- Anycast networking and global load balancing included at no extra cost
- Integrations with the rest of Microsoft's products
- Extensive range of managed services, from serverless to databases to queues to AI
- Generous free tier, and compute savings plans available
- 60+ datacenter locations around the world
Price comparison
Closest matching configuration on each side, monthly list price in USD.
| Service | Fly.io | Azure | Difference |
|---|---|---|---|
| Small VM | $5.70 /mo 1 vCPU, 1 GB RAM (shared-cpu-1x) | $6.13 /mo 2 vCPU, 1 GB RAM (B2pts v2) | 7% cheaper on Fly.io |
| Medium VM | $42.79 /mo 4 vCPU, 8 GB RAM (shared-cpu-4x) | $86.87 /mo 4 vCPU, 8 GB RAM (B4pls v2) | 2x more expensive on Azure |
| Large VM | $248.00 /mo 8 vCPU, 16 GB RAM (performance-8x) | $173.74 /mo 8 vCPU, 16 GB RAM (B8pls v2) | 30% cheaper on Azure |
| Block storage | $15.00 /mo 100 GB | $8.10 /mo 100 GB | 46% cheaper on Azure |
| Object storage | $20.50 /mo 1 TB (Tigris) | $21.50 /mo 1 TB | Within 5% |
| PostgreSQL | $86.00 /mo 2 vCPU, 2 GB RAM, 50 GB storage (Starter) | $131.89 /mo 2 vCPU, 4 GiB RAM, 50 GB storage (Gen 5) | 35% cheaper on Fly.io |
| Redis | $20.00 /mo 1 GB data (Upstash Fixed 1GB) | $39.60 /mo 1 vCPU, 1 GiB RAM (Basic C1) | 49% cheaper on Fly.io |
| Load balancer | Included with apps | $23.25 /mo Standard | |
| Serverless | -- Not listed | $29.80 /mo 25M invocations, 512 MB RAM, 150 ms duration | |
| Egress allowance | -- Not listed | 100 GB / mo | |
| Egress | $20.00 /TB $0.02 / GB (North America and Europe) | $87.00 /TB $0.087 / GB (Premium network North America) | 4.3x more expensive on Azure |
Heads up: Figures take each provider's closest plan to a common setup, and vary by region and usage. Hover a service for the reference configuration. Verify before provisioning. More on how we price.
GPUs
Azure offers 10 GPU models. We track no GPU listings from Fly.io. Cheapest listed price per GPU per hour; GPUs both providers sell come first.
| GPU | Fly.io | Azure | Difference |
|---|---|---|---|
H100
20 configs
|
-- | $1.29 /GPU/hr Spot | Azure only |
|
H200
4 configs
|
-- | $6.86 /GPU/hr Reserved (36 mo) | Azure only |
|
RTX PRO 6000
40 configs
|
-- | $1.02 /GPU/hr Spot | Azure only |
|
A100
20 configs
|
-- | $0.68 /GPU/hr Spot | Azure only |
|
GB200
4 configs
|
-- | $11.90 /GPU/hr Reserved (36 mo) | Azure only |
MI300X
4 configs
|
-- | $1.60 /GPU/hr Spot | Azure only |
|
V100
6 configs
|
-- | $0.31 /GPU/hr Spot | Azure only |
|
T4
16 configs
|
-- | $0.10 /GPU/hr Spot | Azure only |
|
A10
12 configs
|
-- | $0.60 /GPU/hr Spot | Azure only |
|
MI455X
1 config
|
-- | -- On request | Azure only |
Azure bills on-demand, spot and reserved (12 or 36 months). The line under each price names the billing type shown.
Services
Managed services each provider offers.
Company details
| Fact | Fly.io | Azure |
|---|---|---|
| Founded | 2017 | 2008 |
| Headquarters | USA | USA |
| Locations | 18 | 66 |
| Example customers | Cars.com, Fanatics, Tailscale, Supabase | General Motors, NHS, Fujitsu, NBA |
| Website | fly.io | azure.microsoft.com |
Alternatives to consider
Compare Fly.io and Azure against other cloud providers.
Our data for Fly.io was last updated on Aug. 24, 2026, and for Azure on Sept. 11, 2026.