Which service will you likely use?
An uberX car can pick you up in ~2 min.
Distance between Southampton and Heathrow Airport is approx. 66.29 miles (106.68 km) with 75 min travel time.
This Uber estimate from Southampton to Heathrow Airport
24 days ago.
Update the estimate to see the real-time airport transfer fare to Heathrow Airport with Uber in Southampton.