Question: how long does it take to send a letter from california to london?
Answer: Quickest I've had it was 2 days ( from California), longest about 6 or 7 days ( both for "normal" letters) . Packages tend to take about 5 to 7 days. Quickest I've had it was 2 days ( from California), longest about 6 or 7 days ( both for "normal" letters) . Packages tend to take about 5 to 7 days.