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Best broadband deals in Isles of Scilly

201 deals reach Isles of Scilly. The cheapest fixed-line deal is £18.50 a month with Onestream.

Last updated 28 October 202614 providers201 deals
In short

14 providers, including Sky and BT, offer 201 broadband deals, checked . 194 are on a line, 4 by 5G or 4G and 3 by satellite, and the fastest is EE at 1,600 Mbps. Full fibre reaches 50.2% of homes in Isles of Scilly, though only 20% of those homes use it so far. Typical measured speed is 56 Mbps down, 45% below the UK download average.

Deals for Isles of Scilly, checked and refreshed daily.

Best value broadband deal in Isles of Scilly

The best value in Isles of Scilly is 4th Utility's 300Mb Full Fibre (24 Months), the cheapest deal that is a real step up in speed: £240 across year one, about £20 a month. At 300 Mbps it copes with anything a household runs at once.

How we picked this

The cheapest deal at least 1.3 times faster than the cheapest here, with as much speed per pound. 153 of 194 fixed-line deals qualified. Prices checked 28 October 2026.

Cheapest broadband deal in Isles of Scilly

The cheapest deal in Isles of Scilly is Fibre 40 from Onestream at £18.50 a month for 40 Mbps. 4th Utility is essentially level at £20.00 a month. Well below the UK average, which shows on a busy evening.

Cheapest in Isles of Scilly

Onestream logo

Fibre 40

40Mbps download
Part fibre24-month contract£0 upfront

£18.50/mo

rises to £21.25 in April 2027 (+£2.75)

Full details
How we picked this

The lowest cost over the first year, out of 194 fixed-line deals here. Prices checked 28 October 2026.

Fastest broadband deal in Isles of Scilly

The fastest deal available in Isles of Scilly is Full Fibre 1.6GB from EE at 1,600 Mbps. Zen Internet matches it at the same top speed.

Fastest in Isles of Scilly

EE logo

Full Fibre 1.6GB

1600Mbps download
Full fibre24-month contract£80 Reward Card+£30 upfront

£36.99/mo

rises to £40.99 in March 2027 (+£4)

Full details
How we picked this

The highest advertised download speed out of 201 broadband deals here, the cheaper one on a tie. Prices checked 28 October 2026.

Runner-up on speed

Zen Internet logo

Full Fibre Max

1600Mbps download
Full fibreFixed · 24 months+£15 upfront

£45/mo

No rises, no surprises.

Full details

Compare broadband deals in Isles of Scilly

Plusnet logo

Full Fibre 900

900Mbps download
Full fibre24-month contract£150 Reward Card£0 upfront

£26.99/mo

rises to £30.99 in March 2027 (+£4)

Full details
BT logo

Full Fibre 300

300Mbps download
Full fibre24-month contract£120 Reward Card£0 upfront

£25.99/mo

rises to £29.99 in March 2027 (+£4)

Full details
Where these figures come from

Prices checked 28 October 2026.

Broadband providers in Isles of Scilly

14 providers serve Isles of Scilly including Sky, BT and Vodafone, with EE the fastest at 1,600 Mbps.

Ranked by Ofcom complaints per 100,000 customers, fewest first. What the arrows mean

Ofcom records the typical Isles of Scilly download speed at 56 Mbps.

Where these figures come from

Prices checked 28 October 2026.

Satellite broadband in Isles of Scilly

Starlink needs a dish with a clear view of the sky. Its home plans cost from £40 to £80 a month on a one-month contract, with £19 upfront.

Broadband in Isles of Scilly: the local picture

Smaller networks
Two smaller networks carry deals here: Rise Fibre and 4th Utility.

Source: The deals we list in Isles of Scilly, checked 28 October 2026.

Full fibre, UK rank
Full fibre reaches 50.2% of premises, 9th lowest of 361 councils across the UK.

Source: Ofcom Connected Nations, data to January 2026.

Who lives in Isles of Scilly

Isles of Scilly had about 940 households at the 2021 Census. More households rent than own here: 53.9% rent, 17.3% from a social landlord and 36.6% privately, against 37.6% across England. 32.6% of households are one person living alone and 28.2% of residents are 65 or over, more than England’s 18.4%. The ONS’s 2021 rural and urban classification counts Isles of Scilly as majority rural, with most people living further from a major town or city.

Source: Census 2021, Office for National Statistics; the ONS’s 2021 rural and urban classification.

Upgrade nudge

Room to upgrade in Isles of Scilly

Only 20% of the 859 homes here that can get full fibre are on it.

Is your broadband good enough?

The typical Isles of Scilly line runs 56 Mbps.

Working from home

Multiple devices at onceShould cope
14 Mbps average upload (UK average upload: 27 Mbps).

Streaming and family use

OK
4K Netflix/YouTube screens2+ at once
Download a film (5GB)~12 min
Household of 4 to 5 peopleShould be fine

Where these figures come from: Ofcom Connected Nations, data to January 2026.

What speeds are people actually getting?

Gigabit reaches 50% of Isles of Scilly. The full split by band is below.

300Mbps+ (Ultrafast fibre)0%
30 to 300Mbps (Superfast)82%
10 to 30Mbps (Standard)13%
Under 10Mbps (Below decent)6%
~690homes here could already be on full fibre but aren't yet.

Where these figures come from: Ofcom Connected Nations, data to January 2026.

What broadband coverage does Isles of Scilly have?

Superfast broadband reaches 98% of Isles of Scilly premises but gigabit only 50%, so around 48% of homes can get fast broadband but not the fastest.

0.1%
below decent broadband
Almost every premises in Isles of Scilly meets the minimum broadband standard, in line with the UK average of 0.1%.
Full-fibre rank
27th of 27
council areas in South West
Without full fibre
~850
50% of 1,711 premises can't get it yet
MetricIsles of ScillyUK AvgDiff
Superfast (30Mbps+)97.8%97.7%Similar
Ultrafast (100Mbps+)50.2%88.6%-43.3%
Gigabit-capable50.2%87.8%-42.8%
Full fibre (FTTP)50.2%81.0%-38.0%
Below decent broadband0.1%0.1%Similar

Where these figures come from: Ofcom Connected Nations, data to January 2026. See how every UK region compares in The State of UK Broadband.

Broadband speeds by Isles of Scilly neighbourhood

Measured speeds range from 66 Mbps in Tresco to 40 Mbps in Bryher, so your street matters more than the Isles of Scilly average.

NeighbourhoodMedianvs areaAvg uploadSuperfastGigabit5G
Tresco TR2466+91799%9%95%
St Mary's TR215601496%61%95%
St Martin's TR2554-313100%0%95%
Bryher TR2346-1013100%97%95%
Bryher TR2240-1710100%0%95%

Measured Ofcom data per Isles of Scilly neighbourhood, ranked fastest first. Median download and average upload are in Mbps; vs area is the median difference from the Isles of Scilly average; superfast, gigabit and 5G are the % of premises covered. Swipe the table sideways for more columns.

Where these figures come from: Ofcom Connected Nations, data to January 2026.

Postcode districts in Isles of Scilly

Towns in Isles of Scilly

Nearby areas

Frequently asked questions

What broadband speed can I get in Isles of Scilly?
Typical speeds in Isles of Scilly are 56 Mbps, behind the UK average. Slow speeds are often down to an older package rather than the line itself, so it is worth comparing what is on offer.
Can I get fibre broadband in Isles of Scilly?
There is a fair chance: 50% of premises in Isles of Scilly can get gigabit broadband. The local figure can't tell you about your own home, so look up your address.
What is the cheapest broadband in Isles of Scilly?
At £18.50 a month, Onestream's Fibre 40 is the cheapest deal in Isles of Scilly, using part-fibre at 40 Mbps. Under Ofcom rules since 2025, any price rises during the contract must be set out in pounds and pence when you sign up.
Why is my broadband slow in Isles of Scilly?
It can be down to an older package rather than the line itself, as gigabit broadband reaches 50% of premises in Isles of Scilly. A faster package may be on offer at your address.
What upload speed can I get in Isles of Scilly?
Upload speeds in Isles of Scilly average around 14 Mbps. A full-fibre (FTTP) connection delivers the best upload performance.
Can I get gigabit broadband in Isles of Scilly?
Gigabit broadband reaches 50% of premises in Isles of Scilly today. If the next street has it, that doesn't mean yours does, so check your own address.
Is 5G home broadband available in Isles of Scilly?
A 5G hub is worth considering in Isles of Scilly, where 95% of premises are covered by outdoor 5G. It can be working the day it arrives, with no wait for an engineer, but compare its first-year cost with fixed-line deals before you choose.

Ready to switch

See what's actually live in Isles of Scilly.

Compiled by the FindBroadband team: how these local pages work and how we rank deals.