Fuel Prices in Swansea
Live petrol and diesel prices across Swansea and South Wales — cheapest stations first.
Swansea drivers can pay very different prices for the same litre of fuel depending on which forecourt they pick. The spread between the cheapest and most expensive station in the SA postcode area regularly tops 10p per litre.
fuelfinder.ai lists every Swansea station that reports to the UK Government's CMA Pump Watch open-data feed. Search your postcode and you'll see live petrol and diesel prices ranked from cheapest, with how recently each was updated.
Whether you live in Swansea or commute in from Neath, Llanelli, or Port Talbot, a quick check before you fill up is the simplest way to keep your fuel bill down.
How It Works
- Step 1: Enter a Swansea postcode — Type any SA postcode or nearby area code.
- Step 2: Compare every station — Live petrol and diesel prices, sorted cheapest first.
- Step 3: Save at the pump — Drive to the cheapest station and save on every fill.
Why Drivers Use fuelfinder.ai
- South Wales coverage — Swansea plus surrounding towns including Neath, Llanelli, Port Talbot.
- Official CMA data — Same prices the UK Government publishes. Refreshed twice daily.
- Always free — No login, no app, no cost.
- Built for mobile — Check prices on your phone before you leave the driveway.
Frequently Asked Questions
Where is the cheapest petrol in Swansea?
Supermarket forecourts (Asda, Tesco, Sainsbury's, Morrisons) and Costco where present typically offer the cheapest fuel in Swansea. The exact ranking changes daily — use fuelfinder.ai with your postcode for today's cheapest.
How often do Swansea fuel prices change?
Most Swansea stations adjust prices several times a week. Supermarket forecourts can change daily based on wholesale costs. fuelfinder.ai refreshes from the CMA feed twice daily.
Is diesel more expensive than petrol in Swansea?
Diesel typically runs 4–8p per litre above petrol in the SA area, in line with the UK national gap. The exact spread varies by station and brand.
How many fuel stations does fuelfinder.ai cover in Swansea?
Every Swansea forecourt that reports to the UK Government CMA Pump Watch scheme. Coverage grows as more retailers join the scheme.