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Petrol Prices in Letchworth
Average today: unleaded 168.9p · diesel 189.4p ·
UK average 169.6p / 191.4p
Checked 13 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 167.9p
at Sainsburys, Third Avenue. Filling a 55-litre tank at the cheapest station instead of the priciest saves about £1.10.
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