i flew with my black lab from NYC to bergen on Norwegian airlines. she's a service animal and flew at my feet, no extra cost. got a EU passport when i got over here and have alright. a lot of people are scared of dogs that I've noticed. that and buses its harder to just walk on. some boarders you need to notify them at least 24 hrs before entering. also a lot of places tend to be more careful of dogs because of people being allergic. but overall its been good. i wouldn't do it without her. about to try a swedish bus and use the service animal thing. i do have service animal tags. no doctor paperwork. i was told i have PTSD from a crazy intense weekend in colorado. i don't know though if that will work here. we will see