Travel and Journey - both have nearly the same meaning with slighly different connotations. A journey would often imply a longer (in terms of time and/or distance) trip. But I can't really understand the reason why using travel (singular) in this question - How was your travel ? - considered wrong while trip or journey instead is not ? Does it have anything to do with the connotation/suggestion that "travel" (n) has which is perhaps natives are familiar with and it contrasts sightly with trip or journey so that we don't use it in this question ? .. or all about is simply contextual relation that comes from traditional way of usage of this word?