In message , Clive
writes

In message , Richard
J. writes

The most straightforward route is M40, continuing on A40 to White
City, then south on A3220 (the first part may be shown as M41 on old
maps) through Earl's Court to Battersea Bridge. However, it depends
what day of the week and what time you are planning to make the journey.

Thank you for the advice, it should be on Wednesday about tea time, I
know this is the wrong time of day to get to the capital but I am
coming from West Cumbria and am assuming about 9 to 10 hours drive.

At this time of year, and at that time of day, almost any route could be
grim. From the M40 you could consider taking the M25 and then coming
into London on the M4/A4 to Earls Court and then Battersea Bridge. It
avoids likely hold ups in Shepherd's Bush and West Kensington. The short
stretch of southbound M25 is normally OK, but there is a risk of a
(usually brief) delay at the end of the M4.

Another alternative is to turn off the A40 at Hangar Lane and take the
North Circular down to the A4. Possibly slow on the last bit down to
Chiswick roundabout. Don't at any cost attempt Chiswick - Wandsworth on
the South Circular: it can take hours at that time of day.

--
Paul Terry