I can't answer from UK to Zambia, but my friend is in the Peace Corp and she is stationed in Zambia. She sent me a letter from Zambia on Nov 9 and I received it Dec 7. I live in New York City, USA.
Well mailing items usually are pretty quick. So UK to Zambia( never heard of Zambia) would take 2 or 3 days depending on how far apart it is from each other. Hope this helps! If you have another questions plz mail me.
How long for a letter from uk to get to Bermuda
2 days
Zambia is a bit bigger than the UK.
Too long!!
3 to 6 days
2 weeks
7 days
Zambia was given independence by UK in 1964
I takes 2 days
2 weeks
5 to 7 days