Question about ground Transportation for England

Hello, my wife and I will be doing a DIY land tour of England. My question is what is the best mode of transportation from Bath, England back to Heathrow?

I'd say train. It's a direct line from Bath to London Paddington. At Paddington, you can change on to the Heathrow express train without even leaving the station.

I'd say train. It's a direct line from Bath to London Paddington. At Paddington, you can change on to the Heathrow express train without even leaving the station.

Thank you for the feedback. Appreciate it.