By air it is around 119 Miles. The driving distance is around 140 Miles.
The driving distance from London Heathrow Airport to London City Airport is 37 miles.
about 9hrs
It's about 135miles
From Heathrow to London - about 15 minutes by train from London to Cambridge - about 45 minutes by train
97 miles
The London Heathrow airport is the busiest airport within the United Kingdom. The distance between Portsmouth and Long Heathrow airport is exactly 103 miles which takes about one hour and fifty minutes to travel.
About 65 miles via the M25
The distance from the center of Oxford to London Heathrow Airport is almost exactly 40 miles (64 kilometers).
The flight distance from Edinburgh Airport to London Heathrow Airport is 332 miles / 534 km
2 to 2 and 1/2 hours
From Heathrow to Cardiff, the closest airport, the flight distance is 125 miles. Then you have to travel from Cardiff to Dartmoor by car. The driving distance from London to Exeter, the closest town to the park, is 198 miles. Who the hell would fly that distance, and anyway, the nearest airport would be Exeter airport. There are actually many towns inside dartmoor.
The driving distance from London Heathrow Airport to Portsmouth, UK is 117 km