*****How long does it take the post office to deliver mail from Oklahoma to Chicago?*****?

Question

*****How long does it take the post office to deliver mail from Oklahoma to Chicago?*****?

Answer 1

2 days on the average.  All mail goes to Oklahoma City where it's flown to Chicago.

Answer 2

Dallas to Indianapolis is about the same distance over about the same territory -- that trip was 2 postal days (Monday-Saturday) first class mail, though this may stretch out during holidays.