The Blue Line is a 26.3-mile (42.3 km) light rail line in the San Diego Trolley system, operated by San Diego Trolley, Inc., an operating division of the San Diego Metropolitan Transit System (MTS). With an end-to-end travel time of one hour and twenty-three minutes, it operates between the UTC Transit Center and the San Ysidro Transit Center, the latter of which is at the Mexico–United States border directly adjacent to the San Ysidro Port of Entry, facilitating easy connections across the border. The line serves La Jolla, downtown San Diego, National City, Chula Vista, and San Ysidro.
San Ysidro Transit Center is a San Diego Trolley station in the San Ysidro neighborhood of San Diego, California. The station is the southern terminus of the Blue Line and is located on a short rail spur off the San Diego and Arizona Eastern Railway main line which hosts the Blue Line to downtown San Diego.
Fifth Avenue station is a station of the Orange Line, Blue Line, and Silver Line on the San Diego Trolley. It is located in downtown San Diego, California. The station is located along on C Street, between Sixth Avenue and its namesake Fifth Avenue, surrounded by several office buildings.
City College station is a light rail station on the San Diego Trolley's Orange, Blue, and Silver Lines. It is located in the East Village neighborhood of the city and serves northeast downtown San Diego as well as students at San Diego City College and San Diego High School.
12th & Imperial Transit Center is a San Diego Trolley station in downtown San Diego, California. It is located in the East Village neighborhood of the city and serves the high-density residential developments that surround the stop. It is one of two stations from which Petco Park can be reached. The station has historically been used as a major transfer point between the various Trolley lines and is the only station that is directly served by all four Trolley lines.
Barrio Logan station is a station on the Blue Line of the San Diego Trolley located in the Logan Heights neighborhood of San Diego. The station's name is the Spanish translation of "Logan neighborhood" and the station primarily serves the corresponding Hispanic neighborhood. The stop is located near Chicano Park, famous for its artwork and legacy of protests for minority rights.
Harborside station is a station on the Blue Line of the San Diego Trolley located in the Logan Heights neighborhood of San Diego. It serves the Logan Heights residential neighborhood as well as a nearby industrial area.
Pacific Fleet station is a station on the Blue Line of the San Diego Trolley near Naval Base San Diego in San Diego, California. The stop provides civilian access to the naval base facility.
8th Street station is a station on the Blue Line of the San Diego Trolley located in National City, California. Surrounded by an industrial area, the primary focus of this station is to serve as a commuter lot, as it is easily accessible from Interstate 5.
24th Street station is a station on the Blue Line of the San Diego Trolley located in National City, California. The stop serves both as a commuter center with a park and ride lot and to provide access to the dense nearby retail area.
E Street station is a station on the Blue Line of the San Diego Trolley located in the city of Chula Vista, California. The stop serves both as a commuter center with a park and ride lot and to provide access to the dense nearby retail area.
H Street station is a station on the Blue Line of the San Diego Trolley located in the city of Chula Vista, California. The stop serves both as a commuter center with a park and ride lot and as an access point to the nearby dense retail and large residential areas. It also provides access to nearby Southwestern Community College by way of the 709 bus.
Palomar Street station is a station on the Blue Line of the San Diego Trolley located in the city of Chula Vista, California. The stop serves a variety of purposes, holding the function of commuter center with a park and ride lot and providing access to the nearby commercial, industrial, and residential areas, as well as Southwestern Community College.
Palm Avenue station is a station on the Blue Line of the San Diego Trolley located in the Palm City neighborhood of San Diego. The stop serves a variety of purposes, holding the function of commuter center with a park and ride lot and providing access to the nearby commercial and residential areas.
Beyer Boulevard station is a station on the Blue Line of the San Diego Trolley located in San Ysidro neighborhood of San Diego. The stop serves as a park and ride commuter center in addition to providing access to the surrounding residential areas.
32nd & Commercial station is a station on the Orange Line of the San Diego Trolley located in the Stockton neighborhood of San Diego, California. The stop is located in an area where the light rail temporarily breaks from its street-level tracks and runs on a separate right-of-way around the Mt. Hope and Greenwood Cemeteries.
47th Street station is a station on the Orange Line of the San Diego Trolley located in the Chollas View neighborhood San Diego, California. The station primarily serves this mixed-income residential area and includes a park and ride lot.
Euclid Avenue station is a station on the Orange Line of the San Diego Trolley located in the Emerald Hills neighborhood of San Diego, California. The station serves both nearby residences and is also a park and ride facility.
Massachusetts Avenue station is a station on the Orange Line of the San Diego Trolley in Lemon Grove, California, a suburb of San Diego. The station serves as a commuter center and park and ride lot for the surrounding residential community.
Spring Street station is a station on the Orange Line of the San Diego Trolley. It is located in San Diego suburb of La Mesa, California and serves both nearby residences and as a commuter park and ride location.
MTS: Rapid 227, 901, 905, 906, 907, 929, 932, 933, 934 [2] 
