Cheapest Tuna in the UK

Prices updated 15 August 2026 · 215 products across 7 supermarkets

The best-value tuna in the UK right now is ASDA 3 Sweet & Crunchy Red Onions at Asda — £0.32/each (£0.95).

215Products Compared

7Supermarkets

£0.32Lowest /Each

We compare tuna across all 7 major UK supermarkets — Tesco, Sainsbury's, Asda, Morrisons, Waitrose, Aldi and M&S — and rank by price per unit so you can see where tuna is genuinely cheapest. Prices update daily.

#	Product	Store	Price	Per Unit
1	ASDA 3 Sweet & Crunchy Red Onions	Asda	£0.95	£0.32/each
2	ASDA Tangy & Zesty Lemons	Asda	£1.40	£0.35/each
3	ASDA Brown Onions 1kg	Asda	£0.98	£0.98/kg
4	ASDA Fusilli 500g	Asda	£0.75	£1.50/kg
5	EVERYDAY ESSENTIALS Tuna Chunks In Brine 145 G	Aldi	£0.59	£4.10/kg
6	Sainsbury's Tuna Chunks in Sunflower Oil 4x145g	Sainsbury's	£2.49	£4.29/kg
7	M&S Tuna Chunks in Spring Water 4 x 160g	M&S	£2.80	£4.38/kg
8	Sainsbury's Tuna Chunks in Sunflower Oil 145g	Sainsbury's	£0.65	£4.48/kg
9	Sainsbury's Tuna Chunks in Olive Oil 4x145g	Sainsbury's	£2.85	£4.91/kg
10	M&S Tuna Chunks in Sunflower Oil 160g	M&S	£0.80	£5.00/kg
11	M&S Tuna Chunks in Spring Water 160g	M&S	£0.80	£5.00/kg
12	Morrisons Sardines In Spring Water 120g	Morrisons	£0.60	£5.00/kg
13	Sainsbury's Tuna Chunks in Olive Oil 145g	Sainsbury's	£0.75	£5.17/kg
14	Green Giant Original 4 x 198g	Asda	£3.55	£5.38/kg
15	Stockwell & Co Tuna Chunks In Brine 145G	Tesco	£0.59	£5.78/kg
16	Sainsbury's Tuna Chunks in Spring Water 4x145g	Sainsbury's	£2.49	£6.10/kg
17	Sainsbury's Tuna Chunks in Brine 4x145g	Sainsbury's	£2.49	£6.10/kg
18	THE FISHMONGER Tuna Chunks In Brine 4 Pack 0.408 Kg drained	Aldi	£2.49	£6.10/kg
19	THE FISHMONGER Tuna Chunks In Water 4 Pack 0.408 Kg drained	Aldi	£2.49	£6.10/kg
20	THE FISHMONGER Tuna Chunks in Sunflower Oil 4 Pack 0.408 Kg drained	Aldi	£2.49	£6.10/kg
21	ASDA Tuna Chunks in Spring Water 4 x 145g (580g)	Asda	£2.49	£6.10/kg
22	ASDA Tuna Chunks in Brine 4 x 145g (580g)	Asda	£2.49	£6.10/kg
23	Tesco Tuna Chunks In Spring Water 4 X 145G	Tesco	£2.49	£6.10/kg
24	Tesco Tuna Chunks In Brine 4 X 145G	Tesco	£2.49	£6.10/kg

See The Live Tuna Comparison →

Cheapest Tuna: FAQ

Where is the cheapest tuna in the UK?

Right now the best value tuna is ASDA 3 Sweet & Crunchy Red Onions at Asda, £0.95 (£0.32/each). SmartShelf ranks tuna by price per unit across 7 supermarkets, updated daily.

Which supermarket is cheapest for tuna?

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

How does SmartShelf compare tuna 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.