After various legal and ethical troubles on home turf and in their overseas operations, Uber is ploughing forward with ambitious plans to take the skies with flying taxis.

According to a Reuters report, Chief Product Officer Jeff Holden said the ride hailing company expects to deploy its flying taxis in Dallas-Fort Worth, Texas, and Dubai by 2020.

Uber’s flying taxis is said to be small, electric aircraft that take off and land vertically, or VTOLs, with zero emissions and quiet enough to operate in cities.

Uber estimates that flying taxis would cut down travel time between San Francisco’s Marina to downtown San Jose to 15 minutes, compared with the current over two hours by road.

In an early scale operation, the company can get to $1.32 per passenger mile, a little higher than taking an UberX for a similar distance, Holden said. In the longer term, Uber expects the cost of taking flying taxis to fall below car ownership.

The company is working with Hillwood Properties to make four vertiports – VTOL hubs with multiple takeoff and landing pads, and charging infrastructure – in Dallas starting next year, Holden said.

Uber has also teamed up with companies such as Bell Helicopter, Aurora, Pipistrel, Mooney and Embraer to make the flying taxis. The company has also partnered with U.S. electric vehicle charging station maker ChargePoint for developing an exclusive charger for its network.

Partnering with the Dubai government, Uber expects to conduct passenger flights as part of the World Expo 2020 in Dubai.