For many students, transportation presents a barrier to college completion. In 2020-21, the average commuter student could expect to spend nearly one-fifth of their total living expenses on transportation costs. Transportation programs have the potential to offer students some relief--and help them reach college graduation--yet more rigorous research on these programs' benefits is needed. This brief provides results from a quasi-experimental study on the impact of transportation supports on short- and longer-term academic outcomes for community college students at Rio Hondo College. Established in 2016 as a partnership between the Los Angeles County Metropolitan Transportation Agency (LA Metro) and participating area colleges and universities, including Rio Hondo College, the Universal College Student Transit Pass (U-Pass) provides college students with deeply discounted transit fares. Findings from this study suggest that transportation supports like U-Pass offer a promising strategy for increasing the likelihood that students will: (1) remain enrolled one semester and one year later; (2) complete a greater number of credits; and (3) earn a credential. While more research on similar programs is needed, these findings suggest that free- and reduced-cost transit fares could play a critical role in helping students earn college credentials.