It depends whereabouts in Cornwall you mean. As an example - Google Earth calculates the driving time from Bournemouth to Penzance as 3 hours 49 minutes for a journey of 195 miles.
About 3 hours and 31 minutes.
Google Earth calculates the distance as 167 miles - with an estimated driving time of 3 hours 17 minutes.
about 2 hours!
About 2 hours - but it depends on traffic.
If you are asking about the Cornwall in England, then you can't drive from there to Los Angeles, because of the ocean.
It takes about 5 hours and 35 minutes to drive to Yateley Hampshire to Cornwall.
two howusrs
5 hours
The drive from Croydon to Cornwall would take approximately 4 hours and 15 minutes long. The actual distance between both cities is 242.7 miles.
About 6 hours
About 2 hours but it depends on which part of London you are travelling from.
About 5 hours and 35 minutes.