Air transportation with OSU funds (direct billing) is arranged through two contracted agencies:

                User Guide

Independent purchase of tickets by the traveler is allowed only with a written quote, from either contracted agency, showing a higher cost on flights using their services. Please review OSU Policy FIS 411-01: Air Transportation 

Lodging arrangements can be arranged either through the contracted agencies (direct billing at lower, contracted rates; the preffered option whenever possible) or independently (reimbursed at per diem rates). Please review OSU Policiy FIS 411-03: Lodging