I want to figure out the reason as to why we can't say How was your travel? Some say that's because travel as a noun is rarely used and when it's used it should be in plural so does that mean we could ask – How were your travels ? instead? Then here comes another question – How is it possible for uncountable noun to be used in plural form? If the sole "travel"(n) is considered to have a general meaning then would it be right to form the same question by using the compound form – How was your business travel? or where did you go on your business travel?
As you've noticed, I'm going over one type of question because I want to dive more in a sense than sort of grammar trivials. My aim is to know the key thing – the connotation travel owns itself as a noun which makes it unable to be used interchangeably with trip in this perspective. In my opinion there has to be a reasonable explanation about why travel doesn't fit in with the above question. Hope I could get it across what I'm trying to say and get decent answers with a logical approach.
Best Answer
Your question makes some wrong assumptions.
These would all be idiomatic:
How was your|the trip? your journey, the things that happened to you along the way
How was the|your travel? the conditions of the transport itself, the roads, the trains, etc
Tell me about your travels. places you've been and things you've seen throughout your life or on an extended trip
Your travel will be fully reimbursed. the costs of traveling