Network Rail are carrying out engineering work just north of Bristol Temple Meads.
Buses will be in operation from Bristol Temple Meads to Bristol Parkway, Gloucester and Patchway. Trains from Bristol Temple Meads to Swindon will be unaffected.
Their advice is for fans to travel to Bristol Temple Meads – on rail replacement buses or local buses, and take the train from there to Swindon.
For further information on your journey, please click here.