I was in the UK for all of last week. To my amazement, you can vape anywhere there. I thought for sure indoor use would be banned, but it almost seemed encouraged. The people there also, for the most part, are more educated on the difference between smoking and vaping. Never made it in to a UK vape shop as much as I wanted to do so. On non-US airlines, so far as you don't break out the rda, it seems use on a plane is also legal.