Bristol Airport has opened a walkway connecting the terminal building to eight new pre-boarding zones.
The work was part of a 12-month £8 million project to enable passengers to walk to and from aircraft, instead of being driven by bus.
The airport said it would help airlines to "better implement priority boarding", as well as reducing emissions from airport vehicles.
It will also mean arriving passengers will be able to walk undercover from their aircraft to the terminal building.
Robert Sinclair, CEO at Bristol Airport, said: "The new walkway delivers an improved service to our airline customers and their passengers.
"The walkway will make the airport journey more convenient, easy and enjoyable, removing the hassle of bus transfers for the majority of passengers. It is a statement of our ambition to be a world class airport in North Somerset."
www.bristolairport.com