In keeping with UC’s policy to travel by the most reasonable and economical means, purchasing a business-class or first-class seat instead of coach or economy is usually not permitted.
If you choose to purchase a higher-class seat, you should document the price for coach-class and expect to pay for the upgrade using personal funds. Policy does allow for some special circumstances that must be explained for reimbursement. Exceptions will require additional justification and approval.
Please note: With the increasingly complex classification of fare levels by airlines, it may difficult to determine what tickets are higher-class. As a general rule, if the airline labels the seat class with any variation of coach or economy (i.e., Premium Economy; Economy Plus) it will be permitted for reimbursement.