Weekly bulletin, 14 to 20 September 2026. Published Monday 21 September 2026.
Petrol prices in the St Albans postcode area (AL): up 2.5p this week to 174.2p
Between Monday 14 September 2026 and Sunday 20 September 2026, the average price of unleaded across 22 filling stations in the St Albans postcode area (AL) rose 2.5p to 174.2p a litre, while diesel rose 3.4p to 197.4p.
Cheapest and most expensive
On Sunday 20 September 2026, prices updated within 30 days, judged against their neighbours.
The last 30 days
Daily averages, in pence per litre. Right-click the image to save it; it is free to publish with a link.
Towns in the St Albans postcode area (AL) where unleaded moved most
Towns with at least three filling stations, first to last day of the week.
Biggest falls
| Town | Stations | Now | Week |
|---|
Biggest rises
| Town | Stations | Now | Week |
|---|---|---|---|
| Welwyn Garden City | 3 | 175.6p | ▲ 2.7p |
| St Albans | 14 | 173.9p | ▲ 2.6p |
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25 of the 27 stations seen during the week changed at least one price.
The cheapest unleaded in the St Albans postcode area (AL) on Sunday 20 September 2026 was 165.9p at Eg Flamstead Pfs, St Albans (AL3 8HS); the most expensive was 181.9p at Shell Redbourn, St Albans (AL3 7AD), a gap of 16.0p, or £8.00 on a 50-litre tank.
The cheapest diesel was 186.9p at Radlett Road Service Station, St Albans (AL2 2JX).
Across the UK, unleaded was up 2.3p over the same week, at 172.3p, which puts the St Albans postcode area (AL) 1.9p above the national average.
Among the towns of the St Albans postcode area (AL), unleaded rose most in Welwyn Garden City (up 2.7p to 175.6p), St Albans (up 2.6p to 173.9p).
"Drivers in the St Albans postcode area (AL) paid 2.5p more for a litre of unleaded this week. On a 50-litre tank, that is £1.25 more than a week earlier. The gap between the cheapest and the dearest forecourt in the St Albans postcode area (AL) is 16.0p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk.
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Petrol prices in the St Albans postcode area (AL): up 2.5p this week to 174.2p Between Monday 14 September 2026 and Sunday 20 September 2026, the average price of unleaded across 22 filling stations in the St Albans postcode area (AL) rose 2.5p to 174.2p a litre, while diesel rose 3.4p to 197.4p. 25 of the 27 stations seen during the week changed at least one price. The cheapest unleaded in the St Albans postcode area (AL) on Sunday 20 September 2026 was 165.9p at Eg Flamstead Pfs, St Albans (AL3 8HS); the most expensive was 181.9p at Shell Redbourn, St Albans (AL3 7AD), a gap of 16.0p, or £8.00 on a 50-litre tank. The cheapest diesel was 186.9p at Radlett Road Service Station, St Albans (AL2 2JX). Across the UK, unleaded was up 2.3p over the same week, at 172.3p, which puts the St Albans postcode area (AL) 1.9p above the national average. Among the towns of the St Albans postcode area (AL), unleaded rose most in Welwyn Garden City (up 2.7p to 175.6p), St Albans (up 2.6p to 173.9p). "Drivers in the St Albans postcode area (AL) paid 2.5p more for a litre of unleaded this week. On a 50-litre tank, that is £1.25 more than a week earlier. The gap between the cheapest and the dearest forecourt in the St Albans postcode area (AL) is 16.0p, so where you fill up still matters more than when." said Jacky A., editor of fuelpricetoday.co.uk. Source: fuelpricetoday.co.uk, weekly bulletin for the St Albans postcode area (AL), 14 to 20 September 2026. https://fuelpricetoday.co.uk/press/2026-W38/area-al Prices are pence per litre, computed from the government's Fuel Finder open data. Free to use with a link to the source.
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- Every station (CSV)
Name, brand, postcode, coordinates, unleaded and diesel on 14 Sep and 20 Sep.
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All the figures on this page, with the 30-day series.
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Terms of use
Free to use, quote and publish, including the chart and the data, with a link to https://fuelpricetoday.co.uk/press/2026-W38/area-al or a credit to fuelpricetoday.co.uk. Prices are computed from the Fuel Finder open data published by the Department for Energy Security and Net Zero under the Open Government Licence v3.0. Questions, a figure for another area, or a quote: contact@fuelpricetoday.co.uk.
How the figures are computed
Each average is the mean of the prices changed in the last 7 days at the filling stations of the St Albans postcode area (AL), motorway services left out and prices more than 25p from the day's median discarded. The cheapest and most expensive stations are judged against the stations within 10 km, so that a typing error cannot top the list. The week runs from Monday to Sunday. Details on how this site works.