Yarnton is quite well served by Stagecoach buses that run between Oxford and Woodstock, continuing on to either Charlbury or Chipping Norton. Most of the regular daily buses go to the rail station. There is a twenty minute service during the day with a limited service on weekday evenings and Sundays.
Most buses go through the centre of the village, stopping in Rutten Lane and Cassington Road. A few buses do not divert through the village but operate along the A44 (Woodstock Rd).
Telephone 01865 772250