A first-class letter mailed to an address within the same mailing district from which it was posted will generally reach its destination in 2 to 3 days.
About six hours.
2 1/2 hr
About 1 hr and 30 mins.
A couple days maybe. You're close. I've had them go coast-coast in 4 days.
just under an hour, 45 min with no traffic.
The driving distance from Santa Clarita CA to San Francisco is 349 miles per Map Quest. The driving time per Map Quest is 5 hours and 16 minutes.
3 days
It's takes about 7 hrs depending the traffic and where you go through.
About 3 hours, maybe a bit more, but it is a nice drive.
Santa has been Santa for as long as I can remember...
4 weeks
It depends on weather conditions, and also what time the letter arrived at the post office. My guess would be about 3-4 days.