| South San Francisco to Arcore | 5,948.30 mi (9,572.87 km) |
| South San Francisco to Ardea | 6,268.24 mi (10,087.75 km) |
| South San Francisco to Arenzano | 5,998.09 mi (9,652.99 km) |
| South San Francisco to Arese | 5,945.76 mi (9,568.78 km) |
| South San Francisco to Arezzo | 6,143.56 mi (9,887.11 km) |
| South San Francisco to Argelato | 6,065.39 mi (9,761.30 km) |
| South San Francisco to Argenta | 6,076.74 mi (9,779.56 km) |
| South San Francisco to Ariano Irpino | 6,367.14 mi (10,246.92 km) |
| South San Francisco to Ariccia | 6,265.88 mi (10,083.96 km) |
| South San Francisco to Arluno | 5,944.70 mi (9,567.06 km) |
| South San Francisco to Arona | 5,919.69 mi (9,526.81 km) |
| South San Francisco to Artena | 6,272.12 mi (10,094.00 km) |
| South San Francisco to Arzachena | 6,203.88 mi (9,984.18 km) |
| South San Francisco to Arzano | 6,357.77 mi (10,231.84 km) |
| South San Francisco to Arzignano | 6,011.66 mi (9,674.83 km) |
