I think they typically are. In the US the distances tend to be too lage thouhg equating Amtrak with luxury is probably a stretch. I've taken night trains in Eur

I think they typically are. In the US the distances tend to be too lage thouhg equating Amtrak with luxury is probably a stretch. I've taken night trains in Europe (and China) and it may have beaten navigating airports but not sure by how much.