Cheapest fuel in Swansea
We hold recently reported prices for 26 forecourts in Swansea. Every price below carries the date the retailer reported it, so you can see how recent it is before you drive.
Cheapest by fuel type
The lowest reported price for each fuel across Swansea, and where it was reported.
E10 — standard petrol
Unleaded
171.7p
Asda Swansea SuperstoreSA6 8PS
Price from 18 Oct 2026E5 — premium petrol
Super unleaded
183.9p
Ystradgynlais Superstore - Petrol Filling StationSA9 1AD
Price from 18 Oct 2026B7 — standard diesel
Diesel
196.7p
Asda Swansea SuperstoreSA6 8PS
Price from 18 Oct 2026V-Power / Ultimate
Premium diesel
213.9p
Gowerton Esso ExpressSA4 3EZ
Price from 18 Oct 2026Is fuel dear in Swansea?
The Swansea figure is the average of the forecourts listed on this page. The UK figure is national — it is not limited to Swansea — and it is taken over the 6,153 forecourts that reported a price in the most recent GOV.UK snapshot, out of the 8,136 forecourts we currently list. That is what it was calculated from, rather than every forecourt in the country.
| Fuel | Swansea avg | UK avg | Difference |
|---|---|---|---|
| Unleaded20 forecourts | 174.7p | 174.0p | 0.7p dearer |
| Super unleaded15 forecourts | 192.0p | 192.3p | 0.3p cheaper |
| Diesel20 forecourts | 199.8p | 199.0p | 0.9p dearer |
| Premium diesel11 forecourts | 219.3p | 218.8p | 0.5p dearer |
Within Swansea, diesel runs from 196.7p at Asda Swansea Superstore to 219.9p at Swansea Service Area — about £11.60 on a 50-litre fill, if both prices still stand.
Swansea forecourts, cheapest diesel first
20 of 26 Swansea forecourts report diesel. The figure under each price is the difference from the UK average of 199.0p.
Asda Swansea Superstore
SupermarketUPPER FOREST WAY, SWANSEA, SWANSEASA6 8PS
196.7p
-2.3p vs UK
Sainsburys Swansea
SupermarketQUAY PARADE, SWANSEASA1 8JA
196.9p
-2.1p vs UK
Mfg Morrisons Swansea
SupermarketMORFA RETAIL PARK, BRUNEL WAY, MORFA, SWANSEASA1 7DF
196.9p
-2.1p vs UK
Tgc - Llansamlet
Branded117-129 PENIEL GREEN ROAD, LLANSAMLET, SWANSEASA7 9BA
196.9p
-2.1p vs UK
Swansea Cadle Extra - Petrol Filling Station
SupermarketPONTARDULAIS ROAD, CADLE, SWANSEASA5 4BA
197.9p
-1.1p vs UKNts Killay Service Station
BrandedTEXACO, 362-364, GOWER ROAD, KILLAY, SWANSEASA2 7AE
197.9p
-1.1p vs UKCk Foodstores
BrandedMERCO, GLEBE ROAD, LOUGHOR, SWANSEASA4 6SR
197.9p
-1.1p vs UK
Eg Port Tennant Pfs
BrandedFABIAN WAY, PORT TENNANT, SWANSEA, SWANSEASA1 8PA
198.9p
-0.1p vs UKAsda Ystalyfera Supermarket
SupermarketGLANYRAFON, GODRERGRAIG, SWANSEA, SWANSEASA9 2DE
198.9p
-0.1p vs UKMfg Mumbles
BrandedMUMBLES ROAD, SWANSEA, MID GLAMORGANSA3 5AS
198.9p
-0.1p vs UKYstradgynlais Superstore - Petrol Filling Station
SupermarketWIND ROAD, YSTRADGYNLAIS, SWANSEASA9 1AD
199.9p
+0.9p vs UK
Rontec Cross
BrandedSWANSEA ROAD, SWANSEA, WEST GLAMORGANSA4 9AQ
199.9p
+0.9p vs UKEg Swansea Carmarthen Pfs
Branded1093 CARMARTHEN ROAD, FFORESTFACH, SWANSEA, SWANSEASA5 4AN
199.9p
+0.9p vs UKEg Morriston Pfs
BrandedNEATH ROAD, MORRISTON, SWANSEA, SWANSEASA6 8EF
199.9p
+0.9p vs UK
Rontec Morriston
BrandedSAMLET ROAD, SWANSEA, WEST GLAMORGANSA7 9AD
199.9p
+0.9p vs UKGowerton Esso Express
Branded62 BRYN-Y-MOR RD, SWANSEASA4 3EZ
199.9p
+0.9p vs UKMfg Conway (Swansea)
BrandedPENTREGETHIN ROAD, PENLAN, SWANSEASA5 8AQ
199.9p
+0.9p vs UKMfg Tawe
BrandedNEATH ROAD, LANDORE, SWANSEA, WEST GLAMORGANSA1 2JG
199.9p
+0.9p vs UKTgc - Eagle
BrandedLLANGYFELACH ROAD, TREBOATH, SWANSEASA5 9AX
199.9p
+0.9p vs UKSwansea Service Area
BrandedSWANSEA SERVICE AREA, M4 J47, SWANSEA, WEST GLAMORGANSA4 9GT
219.9p
+20.9p vs UKWhere these prices come from
Prices are published by the retailers themselves under the government's fuel price transparency scheme and are shown in pence per litre. A forecourt only appears here once it has actually reported, and we show its reported date rather than assuming today's price. Prices can change between a retailer reporting and you arriving, so always check the pump.
Common questions about fuel in Swansea
Every answer below is worked out from the forecourt prices on this page.
Where is the cheapest diesel in Swansea?
Asda Swansea Superstore, SA6 8PS, at 196.7p a litre. That is the lowest diesel price of the 20 Swansea forecourts reporting it. The retailer reported it today (18 Oct 2026). Prices can change between a retailer reporting and you arriving, so check the pump.
How many petrol stations in Swansea report their fuel prices?
We hold a recently reported price for 26 forecourts in Swansea, published by the retailers themselves under the government's fuel price transparency scheme. That is what has reported recently enough for us to list, rather than a count of every forecourt in Swansea — a site that stops reporting drops out, and one that has never reported never appears. Not every forecourt sells every fuel: 20 quote unleaded, 15 quote super unleaded, 20 quote diesel, 11 quote premium diesel. All 20 of the forecourts quoting diesel are ranked on this page.
Is diesel cheaper in Swansea than the UK average?
Swansea averages 199.8p for diesel across the 20 forecourts quoting it, which is 0.9p a litre dearer than the UK average of 199.0p. The UK figure is taken over the 6,153 forecourts that reported a price in the most recent GOV.UK snapshot, out of the 8,136 forecourts we currently list, so it is not limited to Swansea.
How up to date are these Swansea fuel prices?
Every price on this page was reported today. Retailers report into the scheme themselves, anywhere from daily to occasionally, so no price here is a live pump price — each one is shown with the date it was reported.
How much can I save by shopping around for diesel in Swansea?
Diesel runs from 196.7p to 219.9p across the 20 Swansea forecourts quoting it — a gap of 23.2p a litre, or about £11.60 on a 50-litre fill, if both prices still stand when you get there.
Fuel prices near Swansea
The nearest towns to Swansea with at least 5 reporting forecourts, up to 50 miles away. Distances are straight-line, from the middle of the Swansea forecourts listed above to that town's nearest one.
Fuel prices in Neath
8 forecourts · about 2.6 miles away
Fuel prices in Llanelli
11 forecourts · about 8.3 miles away
Fuel prices in Bridgend
16 forecourts · about 13 miles away
Fuel prices in Carmarthen
8 forecourts · about 20 miles away
Fuel prices in Pontypridd
5 forecourts · about 25 miles away
Fuel prices in Barry
6 forecourts · about 29 miles away
Fuel prices in Cardiff
29 forecourts · about 30 miles away
Fuel prices in Caerphilly
6 forecourts · about 30 miles away
Garages near Swansea
Compare local mechanics and request a quote.