Fly.io vs SiteGround

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

Feature	Fly.io	SiteGround
Starting price	$0.01/mo	$17.99/mo
Best for	Full-stack apps needing global low latency Docker-native deploys Small teams wanting per-second billing Postgres close to compute	WordPress sites Small business websites Agencies wanting managed WP WooCommerce stores
Stated uptime SLA	No blanket platform SLA published; Enterprise support plans include custom SLAs	not formally published as a credit-backed SLA on marketing pages; SiteGround informally markets high uptime (~99.9%) via status page / blog claims
Storage	SSD	SSD
Regions	35	6
Managed Kubernetes	Yes	No
Support channels	Community forum, Docs, Ticket (paid support plans), Enterprise Slack (Enterprise plan)	Ticket, Live chat, Phone (higher tiers/cloud), Docs/Knowledge base
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	Renewal prices are 3-6x higher than signup/intro price after the first term (e.g. StartUp $2.99 -> $17.99/mo) Storage and visit caps are enforced per plan tier; exceeding them can trigger upsell prompts Free domain / free migration offers are time-limited promotions, not permanent 12-month (or longer) prepay is required to get the lowest advertised intro rate
Last reviewed	2026-07-18	2026-07-18