2021 Ford Fiesta ST Line Edition prices

There are 101 used 2021 Ford Fiesta ST Line Edition cars for sale from UK dealers on AskCar, as of 9 November 2026. Typical asking price £10,200 (the median: half cost less, half cost more). The cheapest is £5,999. The middle half are priced between £9,500 and £10,900. Median mileage: about 38,000 miles.

Dealers lowered the asking price on more than a third of 2021 Ford Fiesta ST Line Edition cars: 40 of the 101 in the 14 days to 9 November 2026.

2021 Ford Fiesta ST Line Edition prices by engine and mileage

A 2021 Ford Fiesta ST Line Edition 1.0 petrol car with 20,000 to 40,000 miles typically costs £10,700, against £9,800 with 40,000 to 60,000 miles.

EngineAll mileagesUnder 20,000 miles20,000 to 40,000 miles40,000 to 60,000 miles60,000 miles or more
1.0 petrol£10,200Too few for sale£10,700£9,800Too few for sale

Typical asking prices are of 2021 Ford Fiesta ST Line Edition cars for sale on 9 November 2026, and are given only where at least 20 cars with a price are for sale.

2021 Ford Fiesta ST Line Edition against other years

A 2020 Ford Fiesta ST Line Edition car has a typical asking price of £9,500 and a 2022 one £12,000, as of 9 November 2026.

AskCar lists 8,721 used Ford Fiesta across the UK, from 3,339 dealerships.

As of 9 November 2026, AskCar lists 584,619 cars and vans from 12,676 UK dealerships, read daily from dealer websites: over 99% of UK dealer used car adverts. No dealer pays to be listed.

2021 Ford Fiesta ST Line Edition cars for sale now, page 1 of 3

This page picks out up to 10 cars in each of these groups: best value, cheapest, lowest mileage, recently reduced and newly advertised. A car in more than one group is listed in full once. The groups pick only from cars with photos and an AskCar estimate, priced at £500 or more and no more than 25% under that estimate. 97 of the 101 cars listed here meet these rules. Pages 2 to 3 list every other 2021 Ford Fiesta ST Line Edition car, cheapest first, including the 4 the groups do not pick from.

The AskCar estimate is our expected asking price for that one car, from its model, age, mileage and specification, using the 8,313 priced Ford Fiesta adverts on AskCar as of 9 November 2026. The figures on this page describe the cars advertised, not a valuation of every 2021 Ford Fiesta ST Line Edition.

Each car: year, make, model, engine and trim, power, gearbox, fuel, body, doors, colour; mileage; price and its changes; how the price compares with the AskCar estimate; emissions standard and ULEZ compliance where it holds; MOT; dealer and town; AskCar page. Each car's AskCar page has its full price history and cheaper cars like it.

Best value 2021 Ford Fiesta ST Line Edition: priced furthest below the AskCar estimate

These 10 are priced 6% to 13% under their AskCar estimate. Their asking prices run from £7,910 to £10,995.

Cheapest 2021 Ford Fiesta ST Line Edition: the lowest asking prices

These 10 are priced £7,500 to £8,495. They have covered 56,000 to 93,000 miles.

Lowest-mileage 2021 Ford Fiesta ST Line Edition

These 10 have covered 10,700 to 20,341 miles. Their asking prices run from £10,750 to £12,995.

Recently reduced 2021 Ford Fiesta ST Line Edition: the biggest price reductions in the 14 days to 9 November 2026

The dealer lowered the asking price on each of these 10 in the 14 days to 9 November 2026. Their reductions since AskCar first saw them run from £800 to £2,000.

Newly advertised 2021 Ford Fiesta ST Line Edition: first seen by AskCar in the 7 days to 9 November 2026

These 10 are the most recently advertised. Cars first seen on the same day are listed cheapest first.

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