Understanding CloudFront Flat-Rate Pricing Plans: Predictable CDN and Data Transfer Costs
This article helps DevOps, support engineers, and solutions architects quickly understand the flat-rate plan tiers, identify how you can benefit most from them, and guide activation through the console. Real-world decision-making (which requires cost comparisons, scoping strategies, and trade-off analysis between flat-rate, pay-as-you-go, and the Security Savings Bundle).
Data transfer to the internet is one of the most variable and often surprising line items on an AWS bill. Standard AWS data transfer out pricing starts at $0.09/GB in most regions and for workloads with unpredictable traffic patterns, monthly costs can fluctuate significantly.
Amazon CloudFront flat-rate pricing plans address both problems at once: they bundle CDN delivery, WAF security, and DDoS protection into a single predictable monthly price at up to 83% discount compared to standard AWS data transfer out rates, with no overage charges. The plans also include WAF security, DDoS protection, DNS, logging, edge compute, and S3 storage credits.
In May 2026, AWS extended the Premium tier with configurable usage allowances, enabling customers to scale up to 6 billion requests and 600 TB of data transfer per month self-service, without contacting AWS for custom pricing.
This article explains what flat-rate plans include, when they make sense compared to pay-as-you-go pricing, how to configure usage allowances on Premium, and how to activate plans through the AWS Console.
The Data Transfer Cost Concern
Any AWS resource that sends data to the internet, for example, EC2 instances, ALBs, API Gateway, S3, incurs data transfer out (DTO) charges. Standard rates in US/EU start at $0.09/GB for the first 10 TB/month, and can reach $0.12/GB in regions like South America.
For a workload transferring 50 TB/month from US-East, the standard DTO bill alone would be approximately $4,150/month before accounting for CDN, WAF, or DDoS protection.
CloudFront flat-rate plans change this equation fundamentally:
| Approach | 50 TB/month (US) | Effective $/GB | Savings vs. Standard DTO |
|---|---|---|---|
| Standard AWS DTO (direct from origin) | ~$4,150 | $0.083 | — |
| CloudFront Pay as you go | ~$4,000 | $0.080 | 4% |
| CloudFront Premium flat-rate (compared to $0.09/GB regions) | $1,000 | $0.020 | 76% |
| CloudFront Premium flat-rate (compared to $0.12/GB regions) | $1,000 | $0.020 | 83% |
The discount is even more significant when you factor in that WAF, DDoS protection, DNS, and logging are included at no additional cost.
What Are CloudFront Flat-Rate Plans?
Flat-rate plans combine multiple AWS services into one monthly fee per CloudFront distribution:
| Plan | Price | Requests | Data Transfer | WAF Rules | Bot Management |
|---|---|---|---|---|---|
| Free | $0/mo | 1M | 100 GB | 5 | — |
| Pro | $15/mo | 10M | 50 TB | 25 | — |
| Business | $200/mo | 125M | 50 TB | 50 | Self-identifying bots |
| Premium | $1,000–$10,000/mo | 500M–6B (configurable) | 50–600 TB (configurable) | 75 | Self-identifying bots |
Each plan covers one CloudFront distribution. Higher tiers include all features from lower tiers.
Premium Configurable Usage Levels
The Premium plan offers six self-service usage levels, no need to contact AWS:
| Data Transfer | Requests | Price/month |
|---|---|---|
| 50 TB | 500M | $1,000 |
| 75 TB | 750M | $1,450 |
| 125 TB | 1.25B | $2,250 |
| 200 TB | 2B | $3,500 |
| 350 TB | 3.5B | $6,000 |
| 600 TB | 6B | $10,000 |
For workloads exceeding 6 billion requests or 600 TB per month, use pay-as-you-go pricing which has no upper limit and requires no contact with AWS. Pay-as-you-go also provides access to advanced features not available on flat-rate plans (targeted bot management, account takeover protection, Shield Advanced integration).
The critical differentiator is the no-overage guarantee. Traffic spikes from viral content or DDoS attacks do not increase your bill. Requests blocked by WAF or DDoS protection do not count against usage allowances.
For more information, visit the official AWS blog.
What's Included in Every Plan
All tiers bundle the following services:
- CloudFront CDN: Global delivery via 750+ edge locations
- AWS WAF: Web application firewall with tier-appropriate rule limits
- DDoS Protection: Always-on Layer 3/4 protection (Business and above include advanced Layer 7)
- Amazon Route 53 DNS: Hosted zone and query allowances
- Amazon CloudWatch Logs: Log ingestion for CloudFront access logs
- TLS Certificate: Managed SSL/TLS via ACM
- Serverless Edge Compute: CloudFront Functions included
- Amazon S3 Storage Credits: 5 GB (Free) to 5 TB (Premium) monthly
Data transfer from AWS origins (S3, ALB, API Gateway) to CloudFront remains free across all plans.
When Flat-Rate Plans Make Sense
Data Transfer Cost Reduction
High data transfer costs: Organizations paying standard AWS data transfer rates ($0.09–$0.12/GB) can achieve up to 83% savings by routing traffic through CloudFront flat-rate plans. The data transfer allowance is bundled into the fixed monthly fee, there is no separate DTO line item.
Variable or unpredictable egress: Workloads with seasonal spikes, viral content, marketing campaigns, or unpredictable traffic patterns benefit from normalized monthly spend. A flat-rate plan converts a variable cost into a fixed one, regardless of how much traffic actually flows.
Multi-service egress consolidation: Any publicly accessible workload, whether served from EC2, ALB, API Gateway, S3, or containers, can route through CloudFront to replace per-GB data transfer charges with a flat monthly fee.
Predictable Billing
Budget certainty: Finance teams and engineering leaders who need predictable cloud costs benefit from a fixed monthly price that doesn't change with traffic volume.
No-overage protection: DDoS attacks, traffic spikes, or viral events do not generate surprise bills. Blocked requests don't count against allowances.
Consolidated Security Stack
Simplified operations: Teams currently managing separate CloudFront, WAF, Shield, and Route 53 configurations can simplify with a single plan that enables security by default.
Compliance requirements: Business and Premium tiers include WAF, DDoS protection, and bot management, addressing frameworks like PCI DSS 4.0 that mandate client-side script monitoring and bot detection.
Workload Fit
Small-to-medium workloads: The Business plan at $200/month covers 125 million requests and 50 TB of data transfer, sufficient for most business applications.
High-traffic applications (up to 6B requests/month): With configurable Premium allowances, organizations serving up to 6 billion requests and 600 TB monthly can use flat-rate pricing without custom contracts.
When Pay-As-You-Go May Be Better
Traffic exceeding 6 billion requests or 600 TB per month: Pay-as-you-go pricing has no upper limit and scales with actual usage, no need to contact AWS. It's the natural path for workloads that outgrow the largest configurable Premium level.
Advanced bot management needs: Targeted bot detection (credential stuffing, scraping, account takeover protection) is only available on pay-as-you-go. Flat-rate Business and Premium tiers only cover self-identifying/common bots.
Shield Advanced integration: If your distribution requires AWS Shield Advanced for dedicated DDoS response team access and cost protection, you must use pay-as-you-go — Shield Advanced is not compatible with flat-rate plans.
Multiple distributions: Each plan covers one distribution. Organizations with dozens of distributions should evaluate total cost across all of them.
Existing commitment discounts: Organizations already on the CloudFront Security Savings Bundle (a separate 1-year commitment offering) should compare both models before switching. Flat-rate plans cannot be combined with other offers or discounts.
Very low traffic: If your data transfer is well under the plan's allowance and you don't need the bundled security features, pay-as-you-go may cost less.
Cost Comparison Examples
Example 1: Web Application (Security + CDN)
A web application with:
- 100 million requests per month
- 8 TB data transfer per month
- Requires WAF with 30 rules
- Needs DDoS protection
- Uses Route 53 for DNS
Pay-as-you-go estimate:
| Service | Monthly Cost |
|---|---|
| CloudFront (8 TB, 100M requests) | ~$900 |
| AWS WAF (30 rules, 100M requests) | ~$230 |
| Shield Standard (Layer 3/4) | Free |
| Route 53 (1 hosted zone + queries) | ~$50 |
| Total | ~$1,180/mo |
Flat-rate Premium plan: $1,000/month (includes all of the above plus bot analytics, Origin Shield, origin failover, and uptime SLA).
Savings: ~$180/month while adding features that would cost extra on pay-as-you-go.
Example 2: Data Transfer Cost Reduction
An organization serving 50 TB/month of content directly from ALB/EC2 origins:
| Approach | Monthly Cost | Includes Security? |
|---|---|---|
| Standard DTO from EC2/ALB (no CDN) | ~$4,150 | No |
| CloudFront PAYG (CDN only) | ~$4,000 | No (WAF extra) |
| CloudFront PAYG + WAF + Route 53 | ~$4,400 | Yes |
| CloudFront Premium flat-rate | $1,000 | Yes (all included) |
Savings: ~$3,150/month (76%) vs. standard data transfer, with CDN acceleration, WAF, DDoS protection, and DNS included at no additional cost.
Example 3: Normalizing Variable Spend
A media company with traffic ranging from 10 TB to 45 TB/month depending on content releases:
| Month | Standard DTO Cost | Flat-Rate Premium |
|---|---|---|
| Low (10 TB) | ~$850 | $1,000 |
| Average (25 TB) | ~$2,100 | $1,000 |
| Peak (45 TB) | ~$3,700 | $1,000 |
| Annual total | ~$25,200 | $12,000 |
Even though the flat-rate plan costs slightly more in the lowest month, the annual savings are $13,200 (52%) with completely predictable monthly billing.
How to Activate a Flat-Rate Plan
New Distribution
- Open the CloudFront Console.
- Choose Create distribution.
- In the Choose a plan section, select your desired tier.
- For Premium, configure your usage allowance level using the sliders.
- Configure your origin and distribution settings.
- Complete the creation.
Existing Distribution
- Open the CloudFront Console → Distributions.
- Select the target distribution.
- In the Billing section, choose switch to a plan.
- Select the desired tier. For Premium, choose your usage allowance level.
- Confirm the changes.
Important Considerations
- Upgrades take effect immediately.
- Downgrades take effect at the start of the next billing cycle.
- Cancellations take effect at the end of the current billing period.
- Each distribution can independently use flat-rate or pay-as-you-go.
- Blocked DDoS and WAF requests do not count against usage allowances.
- Premium usage allowances can be adjusted upward at any time.
Flat-Rate Plans vs. Pay-As-You-Go vs. Security Savings Bundle
These are three separate pricing models that serve different needs:
| Aspect | Flat-Rate Plans | Pay-As-You-Go | Security Savings Bundle |
|---|---|---|---|
| Commitment | Month-to-month, no contract | None | 1-year commitment |
| Pricing model | Fixed monthly fee | Per-usage billing | Percentage discount on usage |
| Scope | Per distribution | Per distribution | Account-wide |
| Upper limit | 6B requests / 600 TB (self-service) | No limit | No limit |
| Overages | None (no overage charges) | N/A (you pay for what you use) | N/A (you pay for what you use) |
| Advanced features | Limited (no targeted bots, no Shield Advanced) | Full feature access | Full feature access |
| Best for | Predictable workloads, cost normalization, data transfer savings | High-volume or advanced-feature workloads, unlimited scale | High-volume existing deployments with stable traffic seeking discount |
Decision guide:
- Need predictable billing and data transfer savings up to 600 TB/month → Flat-rate
- Need unlimited scale, targeted bot management, or Shield Advanced → Pay-as-you-go
- Have stable, high-volume traffic and want a discount with a 1-year commitment → Security Savings Bundle
Frequently Asked Questions
What happens if usage exceeds the allowance? AWS sends proactive notifications recommending an upgrade. Your first spike up to three times your monthly allowance is fully accommodated. Beyond that, excess usage is evaluated over multiple months. There are no overage charges and service continues uninterrupted. For more information, refer to the official AWS documentation: Monthly usage allowances.
Can I use both flat-rate and pay-as-you-go in the same account? Yes. Each distribution independently selects its pricing model. Use flat-rate for predictable workloads and pay-as-you-go for variable or burst traffic.
How do I increase my Premium usage allowance? Open the CloudFront Console, select your Premium distribution, and adjust the usage allowance sliders. The new price is shown instantly and upgrades take effect immediately.
Do I need to contact AWS for usage above 500M requests? No. You can self-service configure Premium usage allowances up to 6 billion requests and 600 TB of data transfer directly in the console. For workloads exceeding these levels, switch to pay-as-you-go pricing which has no upper limit and requires no contact with AWS.
Does routing through CloudFront eliminate my origin's data transfer charges? Data transfer from AWS origins (S3, ALB, API Gateway, EC2) to CloudFront is free. When CloudFront serves cached content from edge locations, those requests never reach your origin reducing both data transfer costs and origin load.
How is the "up to 83% discount" calculated? The Premium plan includes 50 TB of data transfer for $1,000/month (effective rate: $0.02/GB). Compared to standard AWS data transfer out pricing in higher-cost regions ($0.12/GB in South America), this represents an 83% reduction. In US/EU regions ($0.085–$0.09/GB), the discount is approximately 76%.
Are there unsupported features? Some advanced configurations (such as multi-tenant distributions, targeted bots, and account takeover protection) have limitations on flat-rate plans. Refer to the official documentation for the complete list.
Summary
CloudFront flat-rate pricing plans are not just a CDN pricing option they are a data transfer cost optimization strategy. By routing internet-facing traffic through CloudFront, organizations can replace variable per-GB data transfer charges (up to $0.12/GB) with a fixed monthly fee (as low as $0.02/GB effective rate) achieving up to 83% savings while gaining CDN acceleration, WAF security, DDoS protection, and DNS in a single bundled price.
With configurable usage allowances on the Premium tier (up to 6B requests and 600 TB/month), organizations of nearly any scale can adopt flat-rate pricing without custom contracts. Evaluate your data transfer volume, traffic variability, feature requirements, and existing commitments to determine whether flat-rate plans can reduce and normalize your AWS egress costs.
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CloudFront Flat-Rate Plans (Short)
- Problem: AWS internet data transfer out (DTO) is variable and can spike.
- Solution: CloudFront flat-rate bundles CDN + WAF + DDoS + DNS/logging/TLS/etc. into a fixed monthly price per distribution with no overage charges (spikes/blocked requests don’t increase spend).
- Best for: high/variable egress and teams needing predictable billing (often up to ~83% effective DTO savings vs standard rates).
- Premium limits: configurable up to 6B requests / 600 TB per month.
- If you need more or advanced features (e.g., Shield Advanced/targeted bot protection): use pay-as-you-go.
- Activate: CloudFront Console → Create distribution (choose plan) or Billing → switch to a plan for existing distributions.
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