AWS Cloud Migration: Costs, Savings, and How to Do It Right

By The Uptime Report editorial team · Last updated September 2026

AWS cloud migration moves your systems to Amazon Web Services, and done well it pays back: the average cloud migration returns $3.86 for every dollar spent, with compute and storage costs falling up to 66% versus on-premises.

What is AWS cloud migration?

AWS cloud migration is the process of moving applications, data, and infrastructure from on-premises systems (or another cloud) to Amazon Web Services. It follows the same discipline as any migration: assess, choose a strategy per workload, move in controlled waves, validate, and optimize. The payoff is real: Softobiz reports an average return of $3.86 per dollar spent, and 91% of organizations have already migrated at least one workload.

How much does AWS cloud migration cost?

Budgets scale with complexity. Small to midsize migrations typically run $50,000 to $250,000, covering assessment, migration services, provisioning, security, and initial optimization. Enterprise migrations with hundreds of servers can exceed $1 million. Against those costs, AWS can cut compute and storage expenses up to 66%, and customers report saving 30% to 70% on storage versus on-premises.

What are the benefits of migrating to AWS?

• Cost: up to 66% lower compute and storage; $3.86 average ROI per dollar.
• Scale: provision and retire resources on demand.
• Efficiency: AWS is up to 4.1x more energy efficient than typical on-premises setups.
• Resilience: built-in redundancy and recovery options.

How do you avoid AWS migration overruns?

The failures are planning failures. 70% of cloud migrations exceed cost or time due to architecture complexity, and 47% of delays come from legacy dependencies not identified during assessment. The fix is disciplined preparation: automated discovery, dependency mapping, and pilot waves before the full move, plus financial governance to keep spend in check. Tooling and, on complex moves, migration consulting close the gaps that cause overruns.

Frequently asked questions

What is AWS cloud migration?

Moving applications, data, and infrastructure from on-premises or another cloud to Amazon Web Services, following an assess-migrate-validate-optimize process.

How much does AWS cloud migration cost?

Small to midsize migrations run $50,000 to $250,000; enterprise migrations with hundreds of servers can exceed $1 million.

How much can AWS migration save?

Up to 66% on compute and storage versus on-premises, with an average return of $3.86 for every dollar spent.

What is the biggest risk in AWS migration?

Cost and time overruns from architecture complexity and unidentified legacy dependencies, which cause 70% of migrations to exceed plan.

How do you plan an AWS migration?

With automated discovery, dependency mapping, and pilot waves before the full move, plus financial governance to control spend.

How many companies have migrated to AWS or cloud?

91% of organizations have migrated at least one workload, and 94% use at least one cloud service in 2026.