Fly.io vs Kinsta

Fly.io is strongest for full-stack apps needing global low latency. Kinsta is strongest for managed WordPress. Here's how they stack up on price, uptime, and support.

Feature	Fly.io	Kinsta
Starting price	$0.01/mo	$35/mo
Best for	Full-stack apps needing global low latency Docker-native deploys Small teams wanting per-second billing Postgres close to compute	Managed WordPress Agencies High-traffic WordPress sites Enterprise WordPress
Stated uptime SLA	No blanket platform SLA published; Enterprise support plans include custom SLAs	99.9%
Storage	SSD	SSD
Regions	35	37
Managed Kubernetes	Yes	No
Support channels	Community forum, Docs, Ticket (paid support plans), Enterprise Slack (Enterprise plan)	24/7 live chat, Ticket, Docs, MyKinsta dashboard
Compliance	SOC 2	GDPR
Hidden costs to watch for	Machine prices vary by region -- the reference/base rates in this dataset are for the Amsterdam (ams) region; several regions carry a price premium Extra RAM beyond a preset's base allocation is billed separately (~$5 per 30 days per additional GB, prorated per-second) Stopped Machines still incur a rootfs storage charge of $0.15/GB per month Volume snapshots are billed at $0.08/GB per month above the first 10GB free per month Dedicated (non-shared) egress IPs are billed hourly (~$0.005/hr, ~$3.60/mo) in addition to the free shared IPv4 Cross-region private networking traffic is billed per GB and varies sharply by region group (Africa/India up to $0.12/GB egress) Wildcard/extra SSL certificates beyond the first 10 free per org are billed monthly	Overage per extra 1,000 visits above plan allowance billed per Kinsta overage schedule (not itemized on public pricing page) Premium Staging Environment add-on reported at $20/month per extra environment beyond the included free staging environment (figure from secondary source, not independently verified on a primary Kinsta page) CDN bandwidth overage reported at approximately $0.05/GB past plan allowance (figure from secondary source, not independently verified) Sevalla Application Hosting: egress bandwidth billed at $0.10/GB (ingress free); build time billed at $0.0003333/second ($0.02/minute) Sevalla Database Hosting: disk space add-ons sold in 10 GB increments at $10/month per 10 GB; external egress bandwidth billed at $0.10/GB (internal app-to-db connections free)
Last reviewed	2026-07-18	2026-07-18