SmartShelf

✦ Go Pro

Cheapest Sweet Potato Fries in the UK

Prices updated 15 November 2026 · 65 products across 5 supermarkets

The best-value sweet potato fries in the UK right now is Sainsbury's Sweet Potatoes Loose at Sainsbury's — £1.19/kg (£1.19).
65Products Compared
5Supermarkets
£1.19Lowest /Kg

We compare sweet potato fries across all 9 major UK supermarkets: Tesco, Asda, Sainsbury's, Morrisons, Waitrose, Aldi, M&S, Ocado and Iceland — and rank by price per unit so you can see where sweet potato fries is genuinely cheapest. Prices update daily.

1Sainsbury's Sweet Potatoes LooseSainsbury's Sweet Potatoes LooseSainsbury'sBest value£1.19/kg£1.192Sainsbury's Sweet Potato 1.25kgSainsbury's Sweet Potato 1.25kgSainsbury's£1.19/kg£1.493Morrisons Sweet Potatoes 1kgMorrisons Sweet Potatoes 1kgMorrisons£1.19/kg£1.194M&S Sweet Potatoes 1kgM&S Sweet Potatoes 1kgM&S£1.40/kg£1.405Sainsbury's Sweet Potato Chunks 600gSainsbury's Sweet Potato Chunks 600gSainsbury's£3.00/kg£1.806Morrisons Sweet Potato Chunks 500gMorrisons Sweet Potato Chunks 500gMorrisons£3.00/kg£1.507Tesco Frozen Sweet Potato Chunks 600GTesco Frozen Sweet Potato Chunks 600GTesco£3.00/kg£1.808Sainsbury's White Flesh Sweet Potato 750gSainsbury's White Flesh Sweet Potato 750gSainsbury's£3.13/kg£2.359M&S Sweet Potato Frozen 600gM&S Sweet Potato Frozen 600gM&S£3.33/kg£2.0010Ocado Organic Sweet Potatoes 750gOcado Organic Sweet Potatoes 750gOcado£3.47/kg£2.6011Sainsbury's Baking Sweet Potatoes x2Sainsbury's Baking Sweet Potatoes x2Sainsbury'sNectar £1.50£3.55/kg£1.9512Tesco Sweet Potato & Potato Mash 450gTesco Sweet Potato & Potato Mash 450gTesco£3.56/kg£1.6013Sainsbury's Sweet Potato, SO Organic 750gSainsbury's Sweet Potato, SO Organic 750gSainsbury's£3.60/kg£2.7014M&S Organic Sweet Potatoes 700gM&S Organic Sweet Potatoes 700gM&S£3.86/kg£2.7015M&S White Flesh Sweet Potatoes 750gM&S White Flesh Sweet Potatoes 750gM&S£4.33/kg£3.2516Sainsbury's Sweet Potato Mash 400gSainsbury's Sweet Potato Mash 400gSainsbury's£4.38/kg£1.7517Tesco Sweet Potato Mash 400GTesco Sweet Potato Mash 400GTesco£4.38/kg£1.7518New Covent Garden Soup Co. 560g Sweet Potato & Chilli SoupNew Covent Garden Soup Co. 560g Sweet Potato & Chilli SoupSainsbury's£4.46/kg£2.5019M&S Curried Sweet Potato Cauliflower & Turmeric 600gM&S Curried Sweet Potato Cauliflower & Turmeric 600gM&S£4.83/kg£2.9020Ocado Diced Sweet Potato 350gOcado Diced Sweet Potato 350gOcado£4.86/kg£1.7021M&S Collection Purple Flesh Sweet Potatoes 750gM&S Collection Purple Flesh Sweet Potatoes 750gM&S£5.00/kg£3.7522Albert Bartlett Sweet Potato Mash 300gAlbert Bartlett Sweet Potato Mash 300gMorrisons£5.00/kg£1.5023Ocado Diced Butternut Squash & Sweet Potato 350gOcado Diced Butternut Squash & Sweet Potato 350gOcado£5.00/kg£1.7524Hipp Organic Sweet Potato 190gHipp Organic Sweet Potato 190gMorrisons£5.26/kg£1.00
See The Live Sweet Potato Fries Comparison →

Cheapest Sweet Potato Fries: FAQ

Where is the cheapest sweet potato fries in the UK?

Right now the best value sweet potato fries is Sainsbury's Sweet Potatoes Loose at Sainsbury's, £1.19 (£1.19/kg). SmartShelf ranks sweet potato fries by price per unit across 5 supermarkets, updated daily.

Which supermarket is cheapest for sweet potato fries?

We compare sweet potato fries across Tesco, Sainsbury's, Asda, Morrisons, Waitrose, Aldi, M&S, Ocado and Iceland. Today Sainsbury's has the cheapest option, but the ranking updates every day as prices change.

How does SmartShelf compare sweet potato fries prices?

We list each product's price per unit (£/kg, £/litre or per item) so you compare like for like, and we show loyalty prices such as Clubcard and Nectar where available. Free, with no sign-up.