Which service will you likely use?
An UberXL car can pick you up in ~5 min.
Distance between London and Stansted Airport is approx. 40.07 miles (64.49 km) with 59 min travel time.
This Uber estimate from London to Stansted Airport
10 days ago.
Update the estimate to see the real-time airport transfer fare to Stansted Airport with Uber in London.