http://www.travelinesw.com Use this to plan your journey. Shows the route is via Salisbury, from London Waterloo, rather than Swindon. You can also use the Left Hand menu "Timetable Lookup" and enter Market Lavington as "Location" to establish the bus services, which may help with your overall plan.
The bus from Salisbury to Market Lavington is service number 2 and there is a bus stop for it approx 5 mins walk from the Salisbury station entrance. However be aware that Service 2 does not run on Sundays and not all of the journeys call at Market Lavington (some only call at West Lavington which is a couple of miles away). As penmere says, you can use http://www.travelinesw.com to find out the times.
Alternatively you could take a train to Swindon then bus 49 to Devizes (the nearest town to Market Lavington), then take bus number 2 or X72 from there. However do not be tempted to take a train to Pewsey which, despite being the closest station to Market Lavington, has no bus service to it.
-:- Message from TripAdvisor staff -:-
This topic has been closed to new posts due to inactivity. We hope you'll join the conversation by posting to an open topic or starting a new one.
To review the TripAdvisor Forums Posting Guidelines, please follow this link: http://www.tripadvisor.com/pages/forums_posting_guidelines.html
We remove posts that do not follow our posting guidelines, and we reserve the right to remove any post for any reason.