@el_unit: The Flyer is a free shuttle bus that runs from San Diego terminal 1&2 to the Old Town Transit Center in San Diego. You get tons of buses and almost a train in every direction!! Runs 8am-11pm every 20 minutes- completely free!!! #freeshuttleSAN #SDwithoutCar #freeairportshuttle #airportshuttle #SanDiegocarfree