Which service will you likely use?
An uberX car can pick you up in ~6 min.
Distance between Sintra and Lisbon Portela Airport is approx. 17.6 miles (28.32 km) with 29 min travel time.
This Uber estimate from Sintra to Lisbon Portela Airport
757 days ago.
Update the estimate to see the real-time airport transfer fare to Lisbon Portela Airport with Uber in Sintra.