The S3 bus service to Woodstock runs every 30 minutes from Oxford train station and Oxford's Gloucester Green bus station to the gates of Blenheim Palace. Please ask the bus driver to identify the appropriate stop.
Buy your tickets to the Palace aboard the bus and you can save 30% on your visit by booking with Stagecoach. Ask the driver for more details, or check the S3 leaflets onboard.
Stagecoach are increasing their services in the run-up to Christmas: for the timetable and more information on the route, visit stagecoachbus.com
Please note there is no direct bus service from Bicester to Woodstock.