Have a look at the wiki in the BA lounge thread
BA Lounge Database | Europe
There are a few places without lounge provision, mostly LGW leisure routes where I imagine the fares perhaps do not support provision of a lounge.
No lounge for BA, but there is for other airlines / Priority Pass
ACE, CAG, CGN, CTA, FNC, HER (lounge opening times restricted), HUY, OLB (BA charter CE can use lounge however), NUE (lounge is airside but register landside), PMO (landside), SPU, For RHO (
see this post), TLL
No lounge for BA, but airport CIP lounge available
BDS (but very limited in scope, €25 online), BJV, BRI (€25 walk up fee), DLM,
JMK (also PP), LCY (separate building), MPL (€18),
PFO, SVG (no PP access, NOK 300 walk-in fee option - see
post 359and
post 465).
BA has in the last year reduced the number of lounge-less routes but a few still remain. If this really is a significant problem there are always options connecting via MAD on to IB to LPA, or even just use another airline and pay for the lounge - there is plenty of choice from the UK to LPA.