Lincolnshire County Council has made a business case to the Department for Transport for extra trains from Lincoln to London.
There are only two direct trains per day from the city to London (and two return). The council would like to see at least four each way daily.
The direct links from Lincoln to London are in the morning and evening, operated by East Midlands Trains and East Coast.
The council believes that more regular trains into Lincoln, especially one that comes into Lincoln in the morning, would help tourism in the city.
It would also help businesses that rely on trading and meetings in London, making the commute more efficient.
Head of Transportation, Chris Briggs, said: “The business case document is something that we prepared a couple of months ago, ahead of the consultation coming out.
“It reflects what the people of Lincolnshire say they would like to see. Ideally we’d like to see four trains down to London each day, and four trains back again.
“The document contains information and facts to support the potential for this to happen.
“We continue to campaign for enhancements to the service we currently have, and would like it to mirror the services that other similar cities have.”