The road measures 208.19 miles long and would take a car obeying speed limits 5 hours and 27 minutes to travel its length.
The A39 is a A Road and is located in the Zone 3 Highways Region.
This is a true long-distance route, journeying through numerous towns like FALMOUTH, Ponsharden, PENRYN, Kergilliack, Mabe Burnthouse, Treliever, Roskrow, Four Cross, St. Gluvias, Higher Treluswell, Perranarworthal, Devoran, Carnon Downs, Playing Place, Killiow, TRURO, Newham, Buckshead, Polwhele, Penmount, Bodrean, Trispen, St. Erme, Indian Queens, Trevarren, St. Columb Road, Black Cross, NEWQUAY, Trekenning, ST. COLUMB, Bridge, Winnards Perch, St. Issey, St. Breock, Whitecross, WADEBRIDGE, Trevanson, Bodieve, Egloshayle, St. Kew Highway, St. Tudy, St. Teath, Helstone, CAMELFORD, Starapark, Davidstow, Otterham, St. Gennys, Wainhouse Corner, Poundstock, Widemouth Bay, BUDE, Marhamchurch, Stratton, Bush, Ivyleaf Hill, Kilkhampton, Youlstone, Morwenstow, Eastcott, Woolley, Hartland, Baxworthy, Higher Clovelly, Bucks Cross, Horns Cross, Fairy Cross, Monkleigh, Abbotsham, BIDEFORD, Northam, Westleigh, Instow, Newton Tracey, Lydacott, Bickington, Roundswell, Roundswell Business Park, BARNSTAPLE, Tawstock, Pilton West, Muddiford, Shirwell, East Down, Arlington, Kentisbury, Parracombe, LYNTON, Barbrook, Hillsford, LYNMOUTH, Countisbury, Porlock, Porlock Hill, Allerford, Holnicote, Selworthy, Tivington, MINEHEAD, Middlecombe, Ellicombe, Dunster, Carhampton, Bilbrook, Washford, Williton, West Quantoxhead, East Quantoxhead, Kilve, Holford, Nether Stowey, Cannington, Wembdon, BRIDGWATER, Horsey, Bawdrip, Knowle, Dunball, Puriton, Chilton Polden, Stawell, Catcott, Ashcott, Walton, STREET, GLASTONBURY, Hartlake, Polsham, Coxley, WELLS, Haydon, Hillgrove, Green Ore, Chewton Mendip, Hallatrow, High Littleton, Timsbury, Farmborough, Marksbury, Corston, and Newton St. Loe.
The road passes through several counties, including Cornwall, Devon, and Somerset.