travel, travelling, journey, trip, voyage, crossing, flight,cruise

• Travel (uncountable noun) and travelling are used to mean the general activity of moving from place to place

      Air travel is becoming cheaper.
      Her work involves a lot of travelling.!!

    You do not say 'a travel'.

• Use journey to talk about travelling a long distance or travelling regularly, when the emphasis is on the travelling itself

     a long and difficult journey (NOT travel) through the mountains
      I read during the train journey to work.
      Did you have a good journey? (=Were you comfortable, was the train on time etc?)

• A trip is when you go on a short journey, or a journey you do not usually make, and come back again. Use this when the emphasis is on where you are going or why you are going there

           my first trip to the States
       a business trip
      Was it a good trip? (=Did you achieve what you wanted to or have a good time there?)

• Voyage is used for a long sea journey

         a voyage across the ocean

• Crossing is used for a fairly short sea journey

       The crossing takes 90 minutes.

• Flight is used for a journey by air

          Have a good flight!

• Cruise  is used for a holiday on a large ship or a journey by boat for pleasure.

    a mediterranean cruise
    a cruise around the world