UK ISP comparison
Cuckoo vs Sky Broadband
Both retail Openreach at the same wholesale speeds up to 900 Mbps FTTP. Cuckoo wins on standalone monthly cost and contract flexibility; Sky wins when Sky TV bundles already anchor the household bill. Both cover Openreach nationwide. Cuckoo wins for households outside the Sky TV ecosystem
Cuckoo is the simplicity-led challenger; Sky is the established TV+broadband bundle. Comparison turns on bundle preference.
What changed: Added answer capsule, side-by-side comparison table, key-facts block, question-led headings, and attributed stat callout for AI citation, 3 June 2026.
Key facts
- Both cover Openreach nationwide. (coverage comparison section).
- Cuckoo entry From around £26/month; Sky Broadband entry From around £27/month (FBRE ISP profiles, May 2026).
- Both retail Openreach at the same wholesale speeds (speed comparison section).
- Cuckoo wins on standalone monthly cost and flexibility (pricing comparison section).
| Attribute | Cuckoo | Sky Broadband |
|---|---|---|
| Network | Openreach FTTC and FTTP; some altnet wholesale | Openreach FTTC and FTTP, nationwide |
| Top speed | 67 Mbps to 900 Mbps | 36 Mbps to 900 Mbps |
| Price band | From around £26/month | From around £27/month |
| Contract | 12 to 24 months typical | 12 to 24 months typical |
| Availability | Nationwide UK | Nationwide UK |
| Switch path | One Touch Switch (gaining provider led) | One Touch Switch (gaining provider led) |
What is Cuckoo?
Cuckoo is a challenger brand with simple no-contract Openreach broadband.
What is Sky Broadband?
Sky retails Openreach with strong Sky TV bundle integration.
Which is cheaper, Cuckoo or Sky Broadband?
Cuckoo wins on standalone monthly cost and flexibility. Sky wins on TV bundle value if Sky TV is already part of the spend.
Is Cuckoo faster than Sky Broadband?
Both retail Openreach at the same wholesale speeds.
Which has wider coverage, Cuckoo or Sky Broadband?
Both cover Openreach nationwide.
Which should I choose, Cuckoo or Sky Broadband?
Cuckoo wins for households outside the Sky TV ecosystem. Sky wins for households who want broadband bundled with TV.
Who is each provider best for?
Cuckoo suits standalone broadband households. Sky suits Sky TV households.
Can I switch between Cuckoo and Sky Broadband?
- Check availability at your postcode for both providers. Coverage matters more than the headline brand.
- Compare like-for-like on speed, contract length and total cost of ownership for 12 to 24 months.
- Use One Touch Switch to move. Your new provider does the heavy lifting.
- Test your speed after the switch on UKSpeedTest.co.uk and complain if it materially underperforms.
Last updated: 3 June 2026. Pricing changes frequently. Always check the latest tariff at the provider's own site or via SearchSwitchSave.com.
Common questions
How long does a switch between Cuckoo and Sky Broadband take?
Under the UK One Touch Switch process introduced by Ofcom in 2024, most switches between two UK fixed-line broadband providers complete within ten working days. The gaining provider takes responsibility for the switch and your existing contract ends automatically. See Fibreswitch.com for the live status of your switch.
Will I lose service during the switch?
Most One Touch Switch moves between Openreach-based providers happen with no service downtime, because the underlying line stays connected. Moves between Openreach and a separate network (Virgin Media, Hyperoptic, Community Fibre, Netomnia, CityFibre via altnet retailer) can involve a brief overlap period to avoid any gap in connectivity. Your gaining provider will confirm the precise method during the order.
Can I keep my router?
Generally no. Most UK ISPs issue their own router optimised for their network and supply chain. You can use your own router on most Openreach FTTC and FTTP services, but bear in mind support and Wi-Fi guarantees apply to the supplied router. Cable, XGS-PON and certain proprietary altnet networks require the supplied modem or ONT.
Is the switch process the same in Northern Ireland?
One Touch Switch covers Great Britain. In Northern Ireland, switching processes follow Ofcom NI guidance and may differ for the Hull region where KCOM operates the historic incumbent network. Check with your gaining provider for region-specific guidance.