BT vs Sky Broadband: Which Is Better? (2026)

BT is more expensive than Sky but offers faster top-tier speeds (900 Mbps vs 500 Mbps) and the Smart Hub 2 router with Wi-Fi 6. Sky is cheaper, starting from £28/month vs BT's £32/month for comparable fibre. Both use the Openreach network so line speeds are identical at each tier.

Overview: BT and Sky Broadband in 2026

BT and Sky are the two most popular broadband providers in the UK, serving a combined 11.5 million subscribers. Both run on the Openreach network, meaning they use the same physical infrastructure — FTTC and FTTP — to deliver broadband to your home. BT holds around 25% of the UK broadband market while Sky serves roughly 5.77 million customers. BT positions itself as a premium provider with higher prices and extras like BT Sport, parental controls and the BT Wi-Fi hotspot network. Sky competes on value, offering lower headline prices and strong TV bundle options through Sky Glass and Sky Q. Both providers will apply mid-contract price rises from April 2026: BT adds £4/month and Sky adds £3/month. Virgin Media operates on a separate cable network and offers an alternative if you want to avoid Openreach altogether, while Vodafone undercuts both on several tiers.

Speed and Price Comparison

At the superfast level, BT's Fibre 2 (67 Mbps) costs around £32/month while Sky Superfast (59 Mbps) starts at roughly £28/month — Sky is cheaper but slightly slower. Moving to full fibre, BT Full Fibre 100 (150 Mbps average) costs about £36/month; Sky Ultrafast (145 Mbps) is approximately £33/month. At higher tiers, BT Full Fibre 300 comes in at £42/month and Full Fibre 900 at £55/month. Sky's top residential package maxes out at around 500 Mbps for about £43/month. Both providers are on Openreach FTTP where available (82% UK coverage), so latency and reliability are functionally identical at the same speed tier. Upload speeds also match: around 50 Mbps on mid-range tiers and 115 Mbps on BT's 900 Mbps plan. The total contract cost including April price rises favours Sky by £80–120 over 24 months at comparable speeds.

Customer Service and Extras Compared

Ofcom's 2025 complaints data puts BT at roughly 12 complaints per 100,000 customers and Sky at about 8 per 100,000 — Sky performs noticeably better on service. BT's Smart Hub 2 router supports Wi-Fi 6 and has earned solid reviews for coverage, while Sky's broadband hub is Wi-Fi 5 only, which may limit performance in larger homes. BT includes the BT Wi-Fi hotspot network (5 million+ UK hotspots), BT Mail and advanced parental controls. Sky counters with a strong TV ecosystem: pairing broadband with Sky TV, Sky Sports or Netflix bundles creates significant savings for entertainment-focused households. BT offers an optional Halo add-on (from £6/month) with guaranteed speeds and 4G backup if your line goes down. Sky has no equivalent backup service. For pure broadband, BT's router and extras edge ahead; for TV and entertainment bundles, Sky wins.

Verdict: Should You Choose BT or Sky?

Choose Sky if you want the cheapest reliable Openreach broadband or plan to bundle with Sky TV. Sky's lower price rises (£3/month vs BT's £4/month) and generally better customer service make it the better default choice for most households. Choose BT if you need speeds above 500 Mbps, want a Wi-Fi 6 router included, or value the Halo 4G backup for home working. BT's Full Fibre 900 is the fastest Openreach package from either provider. For budget-conscious households, Vodafone often undercuts both on mid-range fibre tiers, and NOW Broadband offers rolling monthly contracts from just £22/month on the same Openreach network. Overall, Sky offers better value at lower speed tiers, while BT justifies its premium only at the 300 Mbps+ level where Sky has no direct equivalent.

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Frequently Asked Questions

Is BT better than Sky for broadband?

BT offers faster top speeds (up to 900 Mbps vs Sky's 500 Mbps) and a Wi-Fi 6 router, but costs £3–5/month more at comparable speed tiers. Sky has fewer Ofcom complaints and lower mid-contract price rises. Neither is objectively better — it depends on your priorities.

Which is cheaper, BT or Sky?

Sky is cheaper at every comparable speed tier by £3–5/month. Sky's mid-contract rise is also lower at £3/month vs BT's £4/month from April 2026. Over a 24-month contract, Sky saves you roughly £80–120 at similar speeds.

Is BT faster than Sky?

BT's top speed is 900 Mbps while Sky maxes out at around 500 Mbps. At lower tiers (67–150 Mbps) they deliver virtually identical speeds since both use the Openreach FTTP and FTTC network. Line performance is the same.

Can I switch from BT to Sky easily?

Yes. Both BT and Sky are on the Openreach network, so switching uses the One Touch Switch process. Your new provider handles the switch and the process takes about 10–14 working days with no engineer visit needed on most connections.

Related Guides

BT Broadband Review · Sky Broadband Review · BT vs Virgin Media · Cheapest Broadband in the UK

Methodology & Sources

Information in this guide is sourced from Ofcom market reports, Openreach coverage data, ISPreview.co.uk, provider websites and independent broadband research from Point Topic and Thinkbroadband. Prices and availability are checked monthly. Speed data reflects advertised average speeds from provider Key Facts documents.