1 hour and 42 minutes in light trafic (never durring the day) 2 hours and 30 minutes when I answered the question according to our friends at Google Maps
between 4h 40mins and 4h 50mins.
There is no canal between London and Southampton.
About 80
The county of Hertfordshire adjoins London, so it would depend on which part of Hertfordshire to which part of London and the traffic conditions at the time.
5 hours
2 hours and 6 minutes
About 2 hours
It takes around one hour and twenty minutes
Yes. The easiest way is to travel by train which will take you into central London.
Southampton to Harwich = 172.7 miles and will take approx 3 hours 9 minutes to drive according to AA route planner.
About 4 - 5 hours depending on traffic
Drive