There are essentially two main routes: M1, M25 then M4; or
M1, across the A43, M40 then M25 again
There are no direct trains from Nottingham to Heathrow. You need to go: - Nottingham to London St. Pancras - St. Pancras to Paddington (Underground, Circle line) - London St. Pancras to Heathrow. Alternatively, cheaper but slower: - Nottingham to London St. Pancras - St. Pancras to Heathrow (Underground, Piccadilly line)
About 140 miles
It depends on your route but the approximate driving distance using main roadways is 129 miles or 208 km.
It's about 135miles
The driving distance is approximately 131 road miles. If you average 65 mph for the whole trip, the driving time will be about 2 hours. Add extra time to account for stops or delays.
The driving distance is approximately 86 road miles - about 1 hour 45 minutes of driving time, depending on your average speed and what route(s) you take.
There is no easy route from Heathrow to Tilbury so allow about 3 hours.
Train to Kings Cross and then tube to Heathrow.
By getting in and driving it.
There are 128.779 miles between Essex, UK and Nottingham, England.
Driving directions to Heathrow, Hounslow, Middlesex, UK47.8 mi - about 53 mins
See the Related Question.