You can travel with either a violin or a cello, but the violin is much easier. Most violins can fit in most vehicles, so you don't need a huge car or van to travel by car. If you need to take your instrument on a plane, the violin will most likely fit in the overhead bin. However, you'd need to buy a second ticket to fit your cello in the cabin. Never check your string instrument if you can avoid it. The lack of climate control can affect the wood, and other luggage may damage the instrument if bags go on top of it.