how long does it take for a letter from uk to australia
Airmail takes approx 5-7 days.   Surface can take up to 12 weeks to Australia. See http://www.royalmail.com/portal/rm/content3?mediaId=43200687&catId=400037 for surface â¦ delivery times.he distance from London, UK to Perth, Australia is 7,823 nautical miles. if your boat sails at 20 mph, it would take 16 (24 hour) days 7 hours and 12 minutes to get there.