I sent one from Centerville, UT to Dallas, TX and it took 2 days, so I would imagine from Salt Lake City it is about the same. But, here is the USPS website with estimated times: https://ribbs.usps.gov/modernservicestandards/ssmaps/find_map.cfm
First Class Mail is delivered in three to five days.
It really depends on what you mail the letter or package in. But usually about 3-4 days on the fastest mail line.
About a total of 6 days to a week.
3 day or more
First class mail is delivered in 3 to 5 days
2 days
First class mail delivery takes 3 to 5 days.
First Class Mail is delivered in three to five days.
2-4 days
one milisecond
13 hours
First Class Mail is delivered in three to five days.
7 to 10 days
First class mail is delivered in 3 to 5 days
As long as it takes.