Originally Posted by
pinniped
I've never worked in a situation where the per-diem was an all-up number intended to include airport transportation. That seems illogical, given that the first and last days of a trip have the unusual expense of getting to/from your home airport, plus the transportation in the work city. It's no longer a normal daily expense in the spirit of per diem.
This was my situation as well at a Big 5. 100% allowed for last day (the return travel day), and per diem was for food and incidentals. Transportation to/from always counted as individual expenses outside of per diem.