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Petrol Prices in Letchworth
Average today: unleaded 166.9p · diesel 186.4p ·
UK average 167.8p / 189.2p
Checked 10 September 2026 · retailer-reported prices, changes filed within 30 minutes
Letchworth trend: Unleaded ▲ 5.0p · 7d · Diesel ▲ 4.5p · 7d
The cheapest unleaded in Letchworth today is 163.9p
at Sainsburys, Third Avenue. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £3.30.
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