A full frame camera and travelling light never go together in my view. Whatever the lense, by taking a FF body with you, you are effectively putting a brick into your bag.
If all I needed to shoot was landscapes and street or urban shots, I would have taken Ricoh GR. You can put it in your pocket, even your shirt pocket, it has a very strong magnesium alloy body (I dropped it twice on the pavement, not even a scratch) , an excellent 18 mm lense, all controls of a good DSLR, and it will give you a wonderful image quality.
Once you realise how good this little camera is and how much freedom of shooting it gives you, you will be laughing all you journey.