Yes, there are multiple flights from South Africa to Vermont for under R1 200. The cheapest flight booked recently is on Delta for just R1 139, but on average you can expect to pay R1 158.
There are no direct flights from South Africa to Vermont, but Cheapflights can provide you with all the information you need to find the fastest route with the fewest stops.
There are many flights that can get you from South Africa to Vermont in 29h 40m. Fly via Delta to get the fastest option.
Delta, at R19 487, was found to be the cheapest airline from South Africa to Vermont..