As I realized when I first looked at London tube maps, in British English, journey basically means trip. In American English, the word is almost always used either metaphorically or to refer to a really long and momentous trip–journey though life, journey into terror, journey to the center of the earth, etc.
Are we starting to adopt the British use? Well, maybe. Megabus–a Canadian-owned company, admittedly–is big on journey. (They also ask for the expiry, rather than expiration, date on your credit card.) And an item in the June 3 Hattiesburg (Mississippi) American notes, “TripIt is one of many apps that helps you organize your journey.” (Possibly the writer was using elegant variation to try to avoid repeating trip.)
Meanwhile, perhaps British use is changing as well. I note that the new Steve Coogan film about a journey (literal and figurative) he takes with his buddy is called “The Trip.” Stay tuned.