Does Amazon Prime only work in the US?
Amazon Prime shipping benefits (like free 2-day shipping) apply only in the marketplace/country in which the Amazon website is based.
However, if you have a Prime subscription on the UK website (.co.uk) then the Prime shipping benefits are only for UK addresses.
Does Amazon Prime UK work abroad?
Watching Videos While Traveling Abroad. Eligible Prime members with Prime Video can stream selected Prime Originals titles while traveling outside their home country. Tip: You can download selected Prime titles to your device for offline playback while you’re traveling.
Photo in the article by “Alchemipedia – Blogger.com”