I agree with Matt, John and Haley's answers, but would add that 'trip' also includes a person's activities at the destination. You can go on a shopping trip or a business trip; schools can arrange field trips for their students. We don't normally talk about shopping journeys, business journeys or field journeys (you would have to say 'journey to the shop', 'journey to the office', 'journey to the museum', etc). If you ask someone, 'how was your journey?' you are probably asking about the journey itself, i.e. how was the process of travelling. If you ask 'how was your trip?' you're probably enquiring about the objective of the trip as well as the process of getting there. If you ask how someone's journey to the shop went, they should respond by talking about the process of travelling to the shop. If you ask how their shopping trip went, they might talk about the process of travelling, but they might also talk about their experience in the shop itself. If someone has come to visit you in your home, you could ask them 'how was your journey?' i.e. how was the process of getting from their home to your home. But you wouldn't ask 'how was your trip?' as the trip would be ongoing (visiting you is the main part of the trip).

I American English, the two words can mean exactly the same thing. “After a long trip/journey in the car, we arrived in Las Vegas.” But here are a couple of differences. “Trip” is more common and informal; “journey” is more formal. “Journey” usually refers just to when a person is actually traveling from one point to another; “trip” can include the time spent at the destination. “We enjoyed our trip to Las Vegas” means we enjoyed the time in Las Vegas, not the travel to/from. “Journey” is usually reserved for travel of long distances: “I took a trip to the store to buy eggs” not “I journeyed to the store to buy eggs.”

Trip and journey are both nouns and can usually be used interchangeably. Here are some ways they are used differently: A journey is usually understood to be long (multiple days of travel) while a trip could be just a trip to your local shopping mall. With a trip, you will definitely return. After a journey, the new destination is the goal, and you might never come back! A journey can also be used to talk about “the road of life” or a “spiritual journey”. Hopefully, when you begin a spiritual journey, you won’t ever end up back where you started. :) Ex. Some people find religion as part of their spiritual journey. Ex.2 I’m planning a trip to Italy for my birthday. I need to buy a round-trip ticket. I hope this helps a little! They are so similar...don’t worry, I really had to think about it even though I am a native English speaker :)

Tough one to answer however I will try. A trip is generally short in duration and indicates it will not take long. A journey is longer and make take more time with more action needed to complete.