Starlink vs Fibre Broadband for Business: Full UK Comparison

What is Starlink for Business?

Starlink is a satellite internet service operated by SpaceX. Unlike traditional satellite internet (which used geostationary satellites 35,000km away with terrible latency), Starlink uses a constellation of low-earth orbit (LEO) satellites approximately 550km above the Earth. This dramatically reduces latency to 20–40ms — low enough for VoIP calls and video conferencing.

Starlink Business is the commercial tier, offering priority bandwidth, higher speeds and a flatter, less obtrusive dish compared to the residential service.

Speed and Latency Comparison

When to Choose Starlink

Starlink makes sense for businesses where fixed-line fibre is unavailable, impractical or too slow to install:

• Rural locations — farms, country hotels, rural offices where Openreach full fibre won't reach for years
• Temporary or construction sites — live in 24 hours, no planning or wayleave required
• Mobile operations — Starlink can be vehicle-mounted for mobile businesses
• Backup internet — satellite is geographically diverse from terrestrial networks, making it an excellent failover
• Events and pop-up venues — deployable anywhere with a clear sky view

When to Choose Fibre Broadband

If full fibre is available at your premises, it's almost always the better choice for a business connection:

• Lower latency — critical for VoIP call quality and real-time applications
• More consistent speeds — not affected by weather, satellite congestion or solar activity
• Lower monthly cost — FTTP starts from £39.99/mo vs £140/mo for Starlink Business
• Symmetric upload — leased line fibre gives equal upload and download speeds
• SLA available — leased lines come with contractual uptime guarantees

Can You Use Both?

Yes — and for business-critical sites, we often recommend exactly this. A leased line or FTTP as the primary connection, with Starlink as a fully geographically independent failover. Our Assure X failover platform handles automatic switching between primary and backup connections with no manual intervention.

Is Starlink Good Enough for VoIP?

Generally yes, with caveats. Starlink's latency of 20–60ms is low enough for VoIP calls — BT's own threshold for acceptable VoIP quality is under 150ms. However, during heavy weather or peak satellite usage, latency can spike. For a business that depends heavily on VoIP volume (contact centres, busy reception lines), a fibre connection is more reliable. For occasional or moderate VoIP use at a rural site, Starlink performs well.

Frequently Asked Questions