How long does it take for a passport to process in the UK?
A UK passport can take as little as one week (By appointment only at passport office counters guaranteed one week Fast Track service) or as much as 3 weeks (Normal post – not guaranteed 3 week service). http://www.ips.gov.uk/passport/fees.asp If you choose the not guaranteed post, should their be any delay in the postal system (usually happens around holidays), then it could take longer for your passport to arrive.