Sydney Airport's notorious traffic chokepoints could become a thing of the past under the Sydney Gateway plan, which has received the go-ahead from the NSW state government.

The Sydney Gateway, slated to open in 2023, will create direct motorway access to the domestic and international terminal precincts from the WestConnex M5 Interchange at St Peters.

A spokesperson for the NSW Government has confirmed to Australian Business Traveller that the airport motorway link will be toll-free.

“With Sydney Gateway completed, drivers will be able to travel between Penrith or Parramatta and the Domestic Airport terminal without stopping at a single traffic light,” said NSW Premier Gladys Berejiklian.

“This connection will also help to fix notorious bottlenecks and congestion on roads around the Airport, which often create headaches for travelers.”

The entrance to the domestic T2/T3 precinct will see a dedicated flyover from Qantas Drive "to the front door of the terminals," according to a statement from Sydney Airport.

Qantas Drive will be widened to three lanes in each direction, while the existing Airport Drive "will become an internal airside/landside road."

Sydney Airport will receive an estimated $170 million in 'compensation' from the government for the gateway's use of Sydney Airport land to the north of the airport, with that money being considered for investment "in other transport solutions for the airport including metro, rail and bus services."

Approval for the Sydney Gateway comes two weeks after the airport released its 2039 Master Plan for public consultation before being submitted to the Federal Government in 2019.

The 2039 Master Plan has promised the likes of a dedicated premium departures wing where well-heeled travellers can stride straight from the kerb through immigration and to the lounge, along with extensions to all three terminals, installing ‘swing gates’ at domestic for international flights and adding two remote ‘satellite’ piers at the airport’s south-east and south-west corners.

Read more: Sydney Airport proposes drive-up premium departures wing in 2039 Master Plan