Train passengers travelling up the country can now get coaches directly from Truro and Bodmin to Tiverton Parkway.
The service has been introduced by First Great Western following the destruction of the rail link at Dawlish.
The service means that passengers travelling to London will be able to go straight to Tiverton Parkway to join the rail link rather than taking the train to Plymouth and then a bus on to Tiverton.
The move by First Great Western follows news that a leading coach company has seen a massive increase in trade since the rail link between Cornwall and the rest of the UK was cut.
The work to repair the rail line at Dawlish was initially estimated to take at least six weeks but the storms on Friday have possibly increased the works schedule.
Mark Hopwood, First Great Western managing director, said: "Network Rail's work at Dawlish will continue for some weeks, and we appreciate the patience and understanding our customers have shown us over the past ten days.
"We are absolutely focused on keeping customers moving. These non-stop coach services offer an alternative for business travel in particular and we are happy to support Cornwall’s economy in this way.”
The National Express coach company said it had seen passenger journey numbers on London to Truro services increase by more than 150 per cent year on year.
National Express has put on additional services to meet the increased demand.
Tom Stables, managing director of National Express UK Coach said: “As people in the South West face the prospect of many weeks without normal train services, it's no surprise to see demand for our coaches grow.
"To meet the needs of the region we've added new services and increased our capacity too so that the South West remains connected to the rest of the country.”