My initial thoughts were Bentwaters/Woodbridge. Woodbridge was specifically adapted for damaged aircraft landings with extra wide runways being provided.
There are other possibilities, Framlingham/Saxmundham, Leiston and Halesworth. All US 8thAF, and south to North Framlingham was B17's 390thBG, Leiston was Thunderbolts 358thFG and then Mustangs 357thFG, Halesworth, Thunderbolts 56thFG then B24's 489thBG. All had concrete runways and were a few miles from the coast Leiston being closest at three miles. All show current evidence of airfield remains today, and would have been standard aerodrome designs with runways of around 1,500-2000m length for primary runways.
Further south there's RAF Bradwell Bay, but no associated next door station unless the northern end of Foulness gunnery range was mistaken for airfield infrastructure.
hth
js. (Edit change Tarmac to concrete)