Assuming you are a pilot with a CASS carrier?

You might be able to j/s on FedEx tomorrow. I say "might" because the MEM - SLC leg is showing "0" jumpseats available (maybe full already? maybe a crew rest MD-11 with no jumpseats in the back?)

MSY - MEM 7am check-in time / 9:20am arrival
MEM - SLC 240pm check in time / 6:01pm arrival

Call our jumpseat reservation number at 1 800-544-9040. They'll fill you in on the details ...

Merry Xmas