The Pacific Surfliner train does not stop directly inside San Diego International Airport (SAN), but it provides a very easy connection via the San Diego Flyer. To reach the airport, you should take the Surfliner to the Old Town Transit Center (the stop just before the downtown Santa Fe Depot). From there, you can hop on the San Diego Flyer, which is a free electric shuttle that runs every 20 to 30 minutes and drops you off directly at Terminals 1 and 2. Alternatively, you can take the train to the final Santa Fe Depot stop and take a quick 10-minute taxi or rideshare to the airport. In 2026, the free Old Town shuttle remains the most popular "budget-friendly" and eco-conscious way for travelers to bridge the small gap between the scenic coastal rail line and their departing flights.