Keynsham Station has at least an hourly service in each direction between Monday and Saturday, with roughly a 2 hourly service on Sunday. Direct destinations include: ; ; ; Cardiff; ; ; and . The majority of its services are a combination of 2 hourly Weymouth trains and 2 hourly Southampton trains eastbound and an hourly service to Bristol and in the other direction. On summer Saturdays an extra train is run between and formed of either a Sprinter or a Class 166 Turbo, calling at Keynsham at 09:14, this train does not call at , , , , , or Upwey. There is one direct service from on Monday to Friday that calls at Keynsham at 08:08. A return service to London was introduced in Summer 2020, calling at Keynsham at 17:36. Passengers wishing to travel to London Paddington during the off peak hours should change at Bath Spa or Bristol Temple Meads. The typical journey times are approximately 7 minutes to Bristol and 10 minutes to Bath.