It does depend on your method. Normally it will take a few days according to the postal services you are asking for.
2 Business Days if sent First Class USPS
From Dayton this trip of 2,185 miles will require about 31 hours of driving time.
It takes about 15.5 hours to drive from Dayton, Oregon to Los Angeles, California.
6 hours!
24 hours about
1 week
It takes about 9 hours 57 minutes to travel from Des Moines, Iowa to Dayton, Ohio if you travel via I-80 E and I-74 E.
Google Maps estimates the driving time as 3 hours and 46 minutes.
20 hrs 35 mins
Dayton, OH (DAY) to Orlando, FL (ORL) Shortest Flight Duration: 2 hours 7 mins
Google Maps estimates the drving time as 37 hours.
10 to 11 hours if you don't stop anywhere a lot
The shortest flight, with one stop in Atlanta, is 16hrs 47minutes.