Broadband · By speed

Cheapest 300Mb broadband deals

Handles several 4K streams at once, plus gaming and video calls, for a busy household.

6 deals from 6 providers. Lowest total cost: Gigaclear 300Mbps Full Fibre at £19 a month, £372 over 18 months.

6 deals

Gigaclear

300Mbps Full Fibre

300Mb down
300Mb up
18 months
£30 setup

Full fibre
Symmetrical
Independent network

£19/mo

Total cost: £372

May rise mid-contract. Amount not stated.

View deal

Checked 12 Oct 2026

Sky

300Mbps Full Fibre Broadband

300Mb down
24 months
No setup fee

Full fibre

£29/mo

Total cost: £696

May rise mid-contract. Amount not stated.

View deal

Checked 12 Oct 2026

Virgin Media

M350 Fibre Broadband

362Mb down
24 months
No setup fee

from £25.99/mo

then £29.99 from Apr 2027
then £33.99 from Apr 2028

Total cost: £720

£74/mo after contract

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Checked 12 Oct 2026 · Price varies by address

Plusnet

Full Fibre 300

300Mb down
50Mb up
24 months
£10 setup

Full fibre

£27.99/mo

then £31.99 from Apr 2027
then £35.99 from Apr 2028

Total cost: £778

View deal

Checked 12 Oct 2026

300Mbps Core Broadband

300Mb down
50Mb up
24 months
£30 setup

Full fibre

£28.99/mo

then £32.99 from Apr 2027
then £36.99 from Apr 2028

Total cost: £822

View deal

Checked 12 Oct 2026

Full Fibre 300

300Mb down
49Mb up
24 months
No setup fee

Full fibre

£30.99/mo

then £34.99 from Apr 2027
then £38.99 from Apr 2028

Total cost: £840

View deal

Checked 12 Oct 2026

Prices and speeds vary by address. We rank by total cost over the contract; here's how.