The calculated distance (air line) between Bidford-on-Avon and Swansea is approximately 97 miles respectively 155 kilometers.
By car or train, the actual journey to Swansea is certainly longer, as only the direct route (as the crow flies) between Bidford-on-Avon and Swansea has been calculated here.
Air line (approximately)
155 kilometers
84 nautical miles